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Venel F, Giovine R, Laurencin D, Špačková J, Mittelette S, Métro TX, Volkringer C, Lafon O, Pourpoint F. Probing oxygen exchange between UiO-66(Zr) MOF and water using 17 O solid-state NMR. Chemistry 2024; 30:e202302731. [PMID: 38227358 DOI: 10.1002/chem.202302731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Indexed: 01/17/2024]
Abstract
The Zr-based Metal Organic Framework (MOF) UiO-66(Zr) is widely employed owing to its good thermal and chemical stabilities. Although the long-range structure of this MOF is preserved in the presence of water during several days, little is known about the formation of defects, which cannot be detected using diffraction techniques. We apply here 17 O solid-state NMR spectroscopy at 18.8 T to investigate the reactivity of UiO-66, through the exchange of oxygen atoms between the different sites of the MOF and water. For that purpose, we have selectively enriched in 17 O isotope the carboxylate groups of UiO-66(Zr) by using it with 17 O-labeled terephthalic acid prepared using mechanochemistry. In the presence of water at 50 °C and a following dehydration at 150 °C, we observe an overall exchange of O atoms between COO- and μ3 -O2- sites. Furthermore, we demonstrate that the three distinct oxygen sites, μ3 -OH, μ3 -O2- and COO- , of UiO-66(Zr) MOF can be enriched in 17 O isotope by post-synthetic hydrothermal treatment in the presence of 17 O-enriched water. These results demonstrate the lability of Zr-O bonds and the reactivity of UiO-66(Zr) with water.
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Affiliation(s)
- Florian Venel
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Raynald Giovine
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Danielle Laurencin
- Institut Charles Gerhardt Montpellier, UMR-5253 CNRS-UM-ENSCM, 1919 route de Mende, 34095, Montpellier, Cedex 05, France
| | - Jessica Špačková
- Institut Charles Gerhardt Montpellier, UMR-5253 CNRS-UM-ENSCM, 1919 route de Mende, 34095, Montpellier, Cedex 05, France
| | - Sébastien Mittelette
- Institut Charles Gerhardt Montpellier, UMR-5253 CNRS-UM-ENSCM, 1919 route de Mende, 34095, Montpellier, Cedex 05, France
| | - Thomas-Xavier Métro
- Institut Charles Gerhardt Montpellier, UMR-5253 CNRS-UM-ENSCM, 1919 route de Mende, 34095, Montpellier, Cedex 05, France
| | - Christophe Volkringer
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
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Bayzou R, Trébosc J, Landry AK, Nuernberg RB, Cras BPL, Cras FL, Pourpoint F, Lafon O. Identification of phosphorus sites in amorphous LiPON thin film by observing internuclear proximities. J Magn Reson 2023; 354:107530. [PMID: 37586252 DOI: 10.1016/j.jmr.2023.107530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 07/26/2023] [Accepted: 08/02/2023] [Indexed: 08/18/2023]
Abstract
Amorphous lithium phosphorus oxynitrides (LiPON), prepared by reactive magnetron sputtering, have become the electrolytes of choice for all-solid-state thin film microbatteries since its discovery in early 1990s. Nevertheless, there is still a lack of understanding of their atomic-level structure and its influence on ionic conductivity. Solid-state NMR spectroscopy represents a promising technique to determine the atomic-level structure of LiPON glasses but is challenging owing to its low sensitivity in the case of thin film materials. Recently, 31P solid-state NMR spectra of LiPON thin films were acquired under magic-angle spinning (MAS) conditions and assigned with the help of density functional theory (DFT) calculations of NMR parameters. However, the identification of the different P local environments in these materials is still a challenge owing to their amorphous structure and the lack of resolution of the 31P MAS NMR spectra. We show herein how the NMR observation of internuclear proximities helps to establish the nature of P sites in LiPON thin films. The 31P-14N proximities are probed by a transfer of population in double resonance (TRAPDOR) experiment, whereas 31P-31P proximities are observed using one-dimensional (1D) 31P double-quantum (DQ)-filtered and two-dimensional (2D) 31P homonuclear correlation spectra as well as dipolar dephasing experiments using DQ-DRENAR (DQ-based dipolar-recoupling effects nuclear alignment reduction) technique. The obtained NMR data further support the recently proposed assignment of 31P NMR signals of LiPON thin films. With the help of this assignment, the simulation of the quantitative 1D 31P NMR spectrum indicates that PO43- orthophosphate anions prevail in LiPON thin films and N atoms are mainly incorporated in [O3PNPO3]5- dimeric anions. PO3N4- isolated tetrahedra and [O3POPO3]4- anions are also present but in smaller amounts.
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Affiliation(s)
- Racha Bayzou
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638 - IMEC - Fédération Chevreul, 59000 Lille, France
| | - Annie-Kim Landry
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, 33600 Pessac, France; Univ. Grenoble Alpes, CEA, LITEN, DEHT, 38000 Grenoble, France
| | - Rafael B Nuernberg
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, 33600 Pessac, France
| | | | | | - Frédérique Pourpoint
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000 Lille, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000 Lille, France.
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Maliszewski B, Bayrakdar T, Lambert P, Hamdouna L, Trivelli X, Cavallo L, Poater A, Beliš M, Lafon O, Van Hecke K, Ormerod D, Cazin C, Nahra F, Nolan SP. Dear Editor, Please find enclosed a manuscript entitled:PtII-N-Heterocyclic Carbene Complexes in Solvent-Free Alkene Hydrosilylation. Chemistry 2023:e202301259. [PMID: 37196153 DOI: 10.1002/chem.202301259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/17/2023] [Accepted: 05/17/2023] [Indexed: 05/19/2023]
Abstract
The structural characterization and catalytic activity of a series of platinum(II) complexes, bearing N-heterocyclic carbenes (NHC) as supporting ligands, are reported. The study presents a structure-activity relationship within a group of pre-catalysts, and mechanistic insights into the catalyst activation step. An exceptional catalytic performance of one of the complexes is presented and an attractive solvent-free and open-to-air alkene hydrosilylation protocol, featuring efficient platinum removal, are disclosed.
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Raval P, Thomas N, Hamdouna L, Delevoye L, Lafon O, Manjunatha Reddy GN. Boron Adsorption Kinetics of Microcrystalline Cellulose and Polymer Resin. Langmuir 2023; 39:5384-5395. [PMID: 37022335 DOI: 10.1021/acs.langmuir.3c00021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Tailoring boron-polysaccharide interactions is an important strategy for developing functional soft materials such as hydrogels, fire retardants, and sorbents for environmental remediation, for example, using lignocellulosic biomass. For such applications to be realized, it is paramount to understand the adsorption kinetics of borate anions on cellulose and their local structures. Here, the kinetic aspects of boron adsorption by microcrystalline cellulose, lignin, and polymeric resin are investigated and compared. Borate anions interact with the vicinal diols in the glucopyranoside moieties of cellulose to yield chemisorbed boron chelate complexes. In contrast to cellulose, technical lignin contains fewer cis-vicinal diols, and it does not have a tendency to form such chelate complexes upon treatment with the aqueous boric acid solution. The formation kinetics and stability of these chelate complexes strongly depend on nanoscale structures, as well as reaction conditions such as pH and concentration of the sorbate and sorbent. Specifically, insights into the distinct boron adsorption sites were obtained by solid-state one-dimensional (1D) 11B magic-angle spinning NMR and the local structures and intermolecular interactions in the vicinities of boron chelate complexes are elucidated by analyzing two-dimensional (2D) 1H-13C and 11B-1H heteronuclear correlation NMR spectra. The total boron adsorption capacity of cellulose is estimated to be in the 1.3-3.0 mg range per gram of sorbent, which is lower than the boron adsorption capacity of a polystyrene-based resin, ∼17.2 mg of boron per gram of Amberlite IRA 743. Our study demonstrates that the local backbone and side chain flexibility as well as the structures of polyol groups play a significant role in determining the kinetic and thermodynamic stability of chelate complexes, yielding to different boron adsorption capabilities of lignocellulosic polymers.
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Affiliation(s)
- Parth Raval
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Neethu Thomas
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Lama Hamdouna
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Laurent Delevoye
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Olivier Lafon
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - G N Manjunatha Reddy
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
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Gómez JS, Trébosc J, Tuan Duong N, Pourpoint F, Lafon O, Amoureux JP. Comparison of through-space homonuclear correlations between quadrupolar nuclei in solids. J Magn Reson 2023; 348:107388. [PMID: 36841183 DOI: 10.1016/j.jmr.2023.107388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
Various two-dimensional (2D) homonuclear correlation experiments have been proposed to observe proximities between identical half-integer spin quadrupolar nuclei in solids. These experiments select either the single- or double-quantum coherences during the indirect evolution period, t1. We compare here the efficiency and the robustness of the 2D double-quantum to single-quantum (DQ-SQ) and SQ-SQ homonuclear correlations for two half-integer spin quadrupolar isotopes subject to small chemical shift anisotropy (CSA): 11B with a nuclear spin I = 3/2 and 27Al with I = 5/2. Such a comparison is performed using experiments on two model samples: Li2B4O7 for 11B and AlPO4-14 for 27Al. For both isotopes, the DQ-SQ homonuclear correlations are recommended since they allow probing the proximities between nuclei with close or identical frequencies. In the case of small or moderate isotropic chemical shift differences (e.g. 11B) the [SR221] or [BR221] bracketed DQ-SQ recoupling schemes are recommended; whereas it is the BR221 un-bracketed one otherwise (e.g. 27Al).
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Affiliation(s)
- Jennifer S Gómez
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille 59000, France
| | - Julien Trébosc
- Univ. Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638 - IMEC - Fédération Chevreul, Lille 59000, France
| | - Nghia Tuan Duong
- Nano-Crystallography Unit, RIKEN-JEOL Collaboration Center, Yokohama, Kanagawa 230-0045, Japan
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille 59000, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille 59000, France.
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille 59000, France; Bruker Biospin, 34 rue de l'industrie, Wissembourg 67166, France.
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Bayzou R, Trébosc J, Hung I, Gan Z, Rankin A, Lafon O, Amoureux JP. Improved resolution for spin-3/2 isotopes in solids via the indirect NMR detection of triple-quantum coherences using the T-HMQC sequence. Solid State Nucl Magn Reson 2022; 122:101835. [PMID: 36308816 DOI: 10.1016/j.ssnmr.2022.101835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
The indirect NMR detection of quadrupolar nuclei in solids under magic-angle spinning (MAS) is possible with the through-space HMQC (heteronuclear multiple-quantum coherence) scheme incorporating the TRAPDOR (transfer of population in double-resonance) dipolar recoupling. This sequence, called T-HMQC, exhibits limited t1-noise. In this contribution, with the help of numerical simulations of spin dynamics, we show that most of the time, the fastest coherence transfer in the T-HMQC scheme is achieved when TRAPDOR recoupling employs the highest radiofrequency (rf) field compatible with the probe specifications. We also demonstrate how the indirect detection of the triple-quantum (3Q) coherences of spin-3/2 quadrupolar nuclei in solids improves the spectral resolution for these isotopes. The sequence is then called T-HMQC3. We demonstrate the gain in resolution provided by this sequence for the indirect proton detection of 35Cl nuclei in l-histidine∙HCl and l-cysteine∙HCl, as well as that of 23Na isotope in NaH2PO4. These experiments indicate that the gain in resolution depends on the relative values of the chemical and quadrupolar-induced shifts (QIS) for the different spin-3/2 species. In the case of NaH2PO4, we show that the transfer efficiency of the T-HMQC3 sequence employing an rf-field of 80 kHz with a MAS frequency of 62.5 kHz reaches 75% of that of the t1-noise eliminated (TONE) dipolar-mediated HMQC (D-HMQC) scheme.
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Affiliation(s)
- Racha Bayzou
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie, du Solide, 59000, Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie, du Solide, 59000, Lille, France; Univ. Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638 - IMEC - Fédération Chevreul, 59000, Lille, France
| | - Ivan Hung
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL, 32310, USA
| | - Zhehong Gan
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL, 32310, USA
| | - Andrew Rankin
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie, du Solide, 59000, Lille, France; Univ. Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638 - IMEC - Fédération Chevreul, 59000, Lille, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie, du Solide, 59000, Lille, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie, du Solide, 59000, Lille, France; Bruker Biospin, 34 rue de l'industrie, 67166, Wissembourg, France.
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Verger L, Trébosc J, Baptiste B, Furet E, Dénoue K, Zhang J, Cheviré F, Le Coq D, Calvez L, Lafon O, Hernandez O. Mechanochemical Synthesis and Study of the Local Structure of NaGaS 2 Glass and Glass–Ceramics. Inorg Chem 2022; 61:18476-18485. [DOI: 10.1021/acs.inorgchem.2c02708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Louisiane Verger
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000Rennes, France
| | - Julien Trébosc
- Univ. Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638 − IMEC − Fédération Chevreul, 59000Lille, France
| | - Benoît Baptiste
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), UMR 7590 CNRS-Sorbonne Université-IRD-MNHN, case 115, 4 place Jussieu, 75252Paris Cedex 5, France
| | - Eric Furet
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000Rennes, France
| | - Killian Dénoue
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000Rennes, France
| | - Jiajie Zhang
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000Rennes, France
| | - François Cheviré
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000Rennes, France
| | - David Le Coq
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000Rennes, France
| | - Laurent Calvez
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000Rennes, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 − UCCS − Unité de Catalyse et Chimie du Solide, 59000Lille, France
| | - Olivier Hernandez
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) − UMR 6226, F-35000Rennes, France
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000Nantes, France
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Venel F, Volkringer C, Lafon O, Pourpoint F. Probing adsorption of water and DMF in UiO-66(Zr) using solid-state NMR. Solid State Nucl Magn Reson 2022; 120:101797. [PMID: 35749817 DOI: 10.1016/j.ssnmr.2022.101797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/25/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Affiliation(s)
- Florian Venel
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Christophe Volkringer
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France.
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Bayzou R, Trébosc J, Hung I, Gan Z, Lafon O, Amoureux JP. Indirect NMR detection via proton of nuclei subject to large anisotropic interactions, such as 14N, 195Pt, and 35Cl, using the T-HMQC sequence. J Chem Phys 2022; 156:064202. [DOI: 10.1063/5.0082700] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Racha Bayzou
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181–UCCS–Unité de Catalyse et Chimie du Solide, 59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638–IMEC–Fédération Chevreul, 59000 Lille, France
| | - Ivan Hung
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, USA
| | - Zhehong Gan
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, USA
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181–UCCS–Unité de Catalyse et Chimie du Solide, 59000 Lille, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181–UCCS–Unité de Catalyse et Chimie du Solide, 59000 Lille, France
- Riken NMR Science and Development Division, Yokohama-shi 230-0045, Kanagawa, Japan
- Bruker Biospin, 34 rue de l’industrie, 67166 Wissembourg, France
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Wang Z, Chen K, Jiang Y, Trébosc J, Yang W, Amoureux JP, Hung I, Gan Z, Baiker A, Lafon O, Huang J. Revealing Brønsted Acidic Bridging SiOHAl Groups on Amorphous Silica-Alumina by Ultrahigh Field Solid-State NMR. J Phys Chem Lett 2021; 12:11563-11572. [PMID: 34806885 PMCID: PMC9162276 DOI: 10.1021/acs.jpclett.1c02975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Amorphous silica-aluminas (ASAs) are important acidic catalysts and supports for many industrially essential and sustainable processes. The identification of surface acid sites with their local structures on ASAs is of critical importance for tuning their catalytic properties but still remains a great challenge and is under debate. Here, ultrahigh magnetic field (35.2 T) 27Al-{1H} D-HMQC (dipolar-mediated heteronuclear multiple-quantum correlation) two-dimensional NMR experiments demonstrate two types of Brønsted acid sites in ASA catalysts. In addition to the known pseudobridging silanol acid sites, the use of ultrahigh field NMR provides the first direct experimental evidence for the existence of bridging silanol (BS: SiOHAl) acid sites in ASAs, which has been hotly debated in the past few decades. This discovery provides new opportunities for scientists and engineers to develop and apply ASAs in various reaction processes due to the significance of BS in chemical and fuel productions based on its strong Brønsted acidity.
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Affiliation(s)
- Zichun Wang
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, NSW 2006, Australia
- Department of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Kuizhi Chen
- National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
| | - Yijiao Jiang
- Department of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Julien Trébosc
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie de Solide, F-59000 Lille, France
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, FR 2638, Federation Chevreul, F-59000 Lille, France
| | - Wenjie Yang
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, NSW 2006, Australia
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie de Solide, F-59000 Lille, France
- Bruker Biospin, 34, rue de l'industrie, 67166 Wissembourg, France
- Riken NMR Science and Development Division, Yokohama, 230-0045 Kanagawa, Japan
| | - Ivan Hung
- National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
| | - Zhehong Gan
- National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
| | - Alfons Baiker
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Bioscience, ETH Zürich, HCI, CH-8093 Zürich, Switzerland
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie de Solide, F-59000 Lille, France
- Institut Universitaire de France
- Corresponding Author;
| | - Jun Huang
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, NSW 2006, Australia
- Corresponding Author;
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11
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Nagashima H, Trébosc J, Kon Y, Lafon O, Amoureux JP. Efficient transfer of DNP-enhanced 1 H magnetization to half-integer quadrupolar nuclei in solids at moderate spinning rate. Magn Reson Chem 2021; 59:920-939. [PMID: 33300128 DOI: 10.1002/mrc.5121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/02/2020] [Accepted: 12/05/2020] [Indexed: 06/12/2023]
Abstract
We show herein how the proton magnetization enhanced by dynamic nuclear polarization (DNP) can be efficiently transferred at moderate magic-angle spinning (MAS) frequencies to half-integer quadrupolar nuclei, S ≥ 3/2, using the Dipolar-mediated Refocused Insensitive Nuclei Enhanced by Polarization Transfer (D-RINEPT) technique, in which a symmetry-based SR 4 1 2 recoupling scheme built from adiabatic inversion 1 H pulses reintroduces the 1 H-S dipolar couplings, while suppressing the 1 H-1 H ones. The use of adiabatic pulses also improves the robustness to offsets and radiofrequency (rf)-field inhomogeneity. Furthermore, the efficiency of the polarization transfer is further improved by using 1 H composite pulses and continuous-wave irradiations between the recoupling blocks, as well as by manipulating the S satellite transitions during the first recoupling block. Furthermore, in the case of large 1 H-S dipolar couplings, the D-RINEPT variant with two pulses on the quadrupolar channel results in an improved transfer efficiency. We compare here the performances of this new adiabatic scheme with those of its parent version with single π pulses, as well as with those of PRESTO and CPMAS transfers. This comparison is performed using simulations as well as DNP-enhanced 27 Al, 95 Mo, and 17 O NMR experiments on isotopically unmodified γ-alumina, hydrated titania-supported MoO3 , Mg(OH)2 , and l-histidine·HCl·H2 O. The introduced RINEPT method outperforms the existing methods, both in terms of efficiency and robustness to rf-field inhomogeneity and offset.
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Affiliation(s)
- Hiroki Nagashima
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Julien Trébosc
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et de Chimie du Solide, Lille, France
- Univ. Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638 - IMEC - Institut Michel-Eugène Chevreul, Lille, France
| | - Yoshihiro Kon
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et de Chimie du Solide, Lille, France
- Institut Universitaire de France, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et de Chimie du Solide, Lille, France
- Bruker BioSpin, Wissembourg, France
- NMR Science and Development Division, Riken, Yokohama, Japan
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12
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Zheng M, Xin S, Wang Q, Trébosc J, Xu J, Qi G, Feng N, Lafon O, Deng F. Through-space 11 B- 27 Al correlation: Influence of the recoupling channel. Magn Reson Chem 2021; 59:1062-1076. [PMID: 33847409 DOI: 10.1002/mrc.5163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/27/2021] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
Through-space heteronuclear correlation (D-HETCOR) experiments based on heteronuclear multiple-quantum correlation (D-HMQC) and refocused insensitive nuclei enhanced by polarization transfer (D-RINEPT) sequences have been proven to be useful approaches for the detection of the spatial proximity between half-integer quadrupolar nuclei in solids under magic-angle spinning (MAS) conditions. The corresponding pulse sequences employ coherence transfers mediated by heteronuclear dipolar interactions, which are reintroduced under MAS by radiofrequency irradiation of only one of the two correlated nuclei. We investigate herein using numerical simulations of spin dynamics and solid-state NMR experiments on magnesium aluminoborate glass how the choice of the channel to which the heteronuclear dipolar recoupling is applied affects the transfer efficiency of D-HMQC and D-RINEPT sequences between 11 B and 27 Al nuclei. Experimental results show that maximum transfer efficiency is achieved when the recoupling scheme is applied to the channel, for which the spin magnetization is parallel to the B0 axis in average.
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Affiliation(s)
- Mingji Zheng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shaohui Xin
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- Wanhua Chemical Group Co., Ltd, Yantai, China
| | - Qiang Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Julien Trébosc
- Unité de Catalyse et de Chimie du Solide (UCCS), Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181, Lille, F-59000, France
- Institut Michel-Eugène Chevreul (IMEC),Univ. Lille, CNRS, INRA, Centrale Lille, Univ. Artois, FR 2638 - IMEC, Lille, F-59000, France
| | - Jun Xu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Guodong Qi
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Ningdong Feng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Olivier Lafon
- Unité de Catalyse et de Chimie du Solide (UCCS), Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181, Lille, F-59000, France
- Institut Universitaire de France, Paris, 75231, France
| | - Feng Deng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
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13
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Pourpoint F, Venel F, Giovine R, Trébosc J, Vancompernolle T, Taoufik M, Sarou-Kanian V, Gauvin RM, Lafon O. Probing 29Si- 17O connectivities and proximities by solid-state NMR. J Magn Reson 2021; 330:107029. [PMID: 34311423 DOI: 10.1016/j.jmr.2021.107029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/18/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
The measurement of dipolar and J- couplings between 29Si and 17O isotopes is challenging owing to (i) the low abundance of both isotopes and (ii) their close Larmor frequencies, which only differ by 19%. These issues are circumvented here by the use of isotopic enrichment and dedicated triple-resonance magic-angle spinning NMR probe. The surface of 29Si-enriched silica was labelled with 17O isotope and heated at 80 and 200 °C. 29Si-17O connectivities and proximities were probed using two-dimensional (2D) through-bond and through-space heteronuclear multiple-quantum coherences (J- and D-HMQC) experiments between 17O and 29Si nuclei. The simulation of the build-up of the J- and D-HMQC signals allowed the first experimental measurement of J- and dipolar coupling constants between 17O and 29Si nuclei. These HMQC experiments allow distinguishing two distinct siloxane (SiOSi) oxygen sites: (i) those covalently bonded to Q3 and Q4 groups, having a hydroxyl group as a second neighbour and (ii) those covalently bonded to two Q4 groups. The measured J- and dipolar coupling constants of siloxane 17O nucleus with Q4 29Si nuclei differ from those with Q3 29Si nuclei. These results indicate that the 29Si-17O one-bond J-coupling and Si-O bond length depend on the second neighbours of the Si atoms.
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Affiliation(s)
- Frédérique Pourpoint
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France.
| | - Florian Venel
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Raynald Giovine
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Tom Vancompernolle
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Mostafa Taoufik
- Université Lyon 1, Institut de Chimie de Lyon, CPE Lyon, CNRS, UMR 5265 C2P2, LCOMS, Bâtiment 308 F 43 Blvd du 11 Novembre 1918 F-69616, Villeurbanne Cedex, France
| | - Vincent Sarou-Kanian
- CEMHTI, CNRS, UPR 3079, 1D avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Régis M Gauvin
- PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France; Institut Universitaire de France, France
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14
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Duong NT, Lee D, Mentink-Vigier F, Lafon O, De Paëpe G. On the use of radio-frequency offsets for improving double-quantum homonuclear dipolar recoupling of half-integer-spin quadrupolar nuclei. Magn Reson Chem 2021; 59:991-1008. [PMID: 33624858 DOI: 10.1002/mrc.5142] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 02/15/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Detecting proximities between nuclei is crucial for atomic-scale structure determination with nuclear magnetic resonance (NMR) spectroscopy. Different from spin-1/2 nuclei, the methodology for quadrupolar nuclei is limited for solids due to the complex spin dynamics under simultaneous magic-angle spinning (MAS) and radio-frequency irradiation. Herein, the performances of several homonuclear rotary recoupling (HORROR)-based homonuclear dipolar recoupling sequences are evaluated for 27 Al (spin-5/2). It is shown numerically and experimentally on mesoporous alumina that BR 2 2 1 outperforms the supercycled S3 sequence and its pure double-quantum (DQ) (bracketed) version, [S3 ], both in terms of DQ transfer efficiency and bandwidth. This result is surprising since the S3 sequence is among the best low-power recoupling schemes for spin-1/2. The superiority of BR 2 2 1 is thoroughly explained, and the crucial role of radio-frequency offsets during its spin dynamics is highlighted. The analytical approximation of BR 2 2 1 , derived in an offset-toggling frame, clarifies the interplay between offset and DQ efficiency, namely, the benefits of off-resonance irradiation and the trough in DQ efficiency for BR 2 2 1 when the irradiation is central between two resonances, both for spin-1/2 and half-integer-spin quadrupolar nuclei. Additionally, density matrix propagations show that the BR 2 2 1 sequence, applied to quadrupolar nuclei subject to quadrupolar interaction much larger than radio-frequency frequency field, can create single- and multiple-quantum coherences for near on-resonance irradiation. This significantly perturbs the creation of DQ coherences between central transitions of neighboring quadrupolar nuclei. This effect explains the DQ efficiency trough for near on-resonance irradiation, in the case of both cross-correlation and autocorrelation peaks. Overall, this work aids experimental acquisition of homonuclear dipolar correlation spectra of half-integer-spin quadrupolar nuclei and provides theoretical insights towards improving recoupling schemes at high magnetic field and fast MAS.
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Affiliation(s)
- Nghia Tuan Duong
- Univ. Grenoble Alpes, CEA, IRIG-MEM, Grenoble, 38000, France
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille, F-59000, France
| | - Daniel Lee
- Univ. Grenoble Alpes, CEA, IRIG-MEM, Grenoble, 38000, France
| | | | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Lille, F-59000, France
- Institut Universitaire de France, Paris, 75231, France
| | - Gaël De Paëpe
- Univ. Grenoble Alpes, CEA, IRIG-MEM, Grenoble, 38000, France
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15
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Venel F, Nagashima H, Rankin AGM, Anquetil C, Klimavicius V, Gutmann T, Buntkowsky G, Derenne S, Lafon O, Huguet A, Pourpoint F. Characterization of Functional Groups in Estuarine Dissolved Organic Matter by DNP-enhanced 15 N and 13 C Solid-State NMR. Chemphyschem 2021; 22:1907-1913. [PMID: 34250708 DOI: 10.1002/cphc.202100334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/02/2021] [Indexed: 11/12/2022]
Abstract
Estuaries are key ecosystems with unique biodiversity and are of high economic importance. Along the estuaries, variations in environmental parameters, such as salinity and light penetration, can modify the characteristics of dissolved organic matter (DOM). Nevertheless, there is still limited information about the atomic-level transformations of DOM in this ecosystem. Solid-state NMR spectroscopy provides unique insights into the nature of functional groups in DOM. A major limitation of this technique is its lack of sensivity, which results in experimental time of tens of hours for the acquisition of 13 C NMR spectra and generally precludes the observation of 15 N nuclei for DOM. We show here how the sensitivity of solid-state NMR experiments on DOM of Seine estuary can be enhanced using dynamic nuclear polarization (DNP) under magic-angle spinning. This technique allows the acquisition of 13 C NMR spectra of these samples in few minutes, instead of hours for conventional solid-state NMR. Both conventional and DNP-enhanced 13 C NMR spectra indicate that the 13 C local environments in DOM are not strongly modified along the Seine estuary. Furthermore, the sensitivity gain provided by the DNP allows the detection of 15 N NMR signal of DOM, in spite of the low nitrogen content. These spectra reveal that the majority of nitrogen is in the amide form in these DOM samples and show an increased disorder around these amide groups near the mouth of the Seine.
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Affiliation(s)
- Florian Venel
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Hiroki Nagashima
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France.,Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Andrew G M Rankin
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France.,Sorbonne Univ., LCMCP UMR 7475, CNRS, CdF, 4 place Jussieu, 75252, Paris 05, France
| | - Christelle Anquetil
- Sorbonne Univ, UMR 7619 Metis, CNRS, EPHE, PSL, 4 Place Jussieu, 75252, Paris 05, France
| | - Vytautas Klimavicius
- Institute of Physical Chemistry, Technical University Darmstadt, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany.,Institute of Chemical Physics, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania
| | - Torsten Gutmann
- Institute of Physical Chemistry, Technical University Darmstadt, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Gerd Buntkowsky
- Institute of Physical Chemistry, Technical University Darmstadt, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Sylvie Derenne
- Sorbonne Univ, UMR 7619 Metis, CNRS, EPHE, PSL, 4 Place Jussieu, 75252, Paris 05, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France.,Institut Universitaire de France, 1 rue Descartes, 75231, Paris, France
| | - Arnaud Huguet
- Sorbonne Univ, UMR 7619 Metis, CNRS, EPHE, PSL, 4 Place Jussieu, 75252, Paris 05, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
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16
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Gómez J, Rankin A, Trébosc J, Pourpoint F, Tsutsumi Y, Nagashima H, Lafon O, Amoureux JP. Improved NMR transfer of magnetization from protons to half-integer spin quadrupolar nuclei at moderate and high magic-angle spinning frequencies. Magn Reson (Gott) 2021; 2:447-464. [PMID: 37904781 PMCID: PMC10539806 DOI: 10.5194/mr-2-447-2021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 06/01/2021] [Indexed: 11/01/2023]
Abstract
Half-integer spin quadrupolar nuclei are the only magnetic isotopes for the majority of the chemical elements. Therefore, the transfer of polarization from protons to these isotopes under magic-angle spinning (MAS) can provide precious insights into the interatomic proximities in hydrogen-containing solids, including organic, hybrid, nanostructured and biological solids. This transfer has recently been combined with dynamic nuclear polarization (DNP) in order to enhance the NMR signal of half-integer quadrupolar isotopes. However, the cross-polarization transfer lacks robustness in the case of quadrupolar nuclei, and we have recently introduced as an alternative technique a D -RINEPT (through-space refocused insensitive nuclei enhancement by polarization transfer) scheme combining a heteronuclear dipolar recoupling built from adiabatic pulses and a continuous-wave decoupling. This technique has been demonstrated at 9.4 T with moderate MAS frequencies, ν R ≈ 10 -15 kHz, in order to transfer the DNP-enhanced 1 H polarization to quadrupolar nuclei. Nevertheless, polarization transfers from protons to quadrupolar nuclei are also required at higher MAS frequencies in order to improve the 1 H resolution. We investigate here how this transfer can be achieved at ν R ≈ 20 and 60 kHz. We demonstrate that the D -RINEPT sequence using adiabatic pulses still produces efficient and robust transfers but requires large radio-frequency (rf) fields, which may not be compatible with the specifications of most MAS probes. As an alternative, we introduce robust and efficient variants of the D -RINEPT and PRESTO (phase-shifted recoupling effects a smooth transfer of order) sequences using symmetry-based recoupling schemes built from single and composite π pulses. Their performances are compared using the average Hamiltonian theory and experiments at B 0 = 18.8 T on γ -alumina and isopropylamine-templated microporous aluminophosphate (AlPO4 -14), featuring low and significant 1 H-1 H dipolar interactions, respectively. These experiments demonstrate that the 1 H magnetization can be efficiently transferred to 27 Al nuclei using D -RINEPT with SR 4 1 2 (2700 90180 ) recoupling and using PRESTO with R 22 2 7 (1800 ) or R 16 7 6 (2700 90180 ) schemes at ν R = 20 or 62.5 kHz, respectively. The D -RINEPT and PRESTO recoupling schemes complement each other since the latter is affected by dipolar truncation, whereas the former is not. We also analyze the losses during these recoupling schemes, and we show how these magnetization transfers can be used at ν R = 62.5 kHz to acquire in 72 min 2D HETCOR (heteronuclear correlation) spectra between 1 H and quadrupolar nuclei, with a non-uniform sampling (NUS).
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Affiliation(s)
- Jennifer S. Gómez
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide, Lille, 59000, France
| | - Andrew G. M. Rankin
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide, Lille, 59000, France
- present address: Sorbonne Université, CNRS, Collège de
France, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), 4 place Jussieu, Paris, 75005, France
| | - Julien Trébosc
- Univ. Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638 –
IMEC – Fédération Chevreul, Lille, 59000, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide, Lille, 59000, France
| | - Yu Tsutsumi
- Bruker Japan, 3-9 Moriya, Kanagawa, Yokohama, Kanagawa,
221-0022, Japan
| | - Hiroki Nagashima
- Interdisciplinary Research Center for Catalytic Chemistry, National
Institute of Advanced Industrial Science and Technology (AIST), 1-1-1
Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide, Lille, 59000, France
- Institut Universitaire de France, 1 rue Descartes, Paris, 75231,
France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide, Lille, 59000, France
- Riken NMR Science and Development Division, Yokohama, Kanagawa, 230-0045, Japan
- Bruker Biospin, 34 rue de l'industrie, Wissembourg, 67166, France
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17
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Wang Z, Buechel R, Jiang Y, Wang L, Xu H, Castignolles P, Gaborieau M, Lafon O, Amoureux JP, Hunger M, Baiker A, Huang J. Engineering the Distinct Structure Interface of Subnano-alumina Domains on Silica for Acidic Amorphous Silica-Alumina toward Biorefining. JACS Au 2021; 1:262-271. [PMID: 34467291 PMCID: PMC8395625 DOI: 10.1021/jacsau.0c00083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Indexed: 05/21/2023]
Abstract
Amorphous silica-aluminas (ASAs) are important solid catalysts and supports for many industrially essential and sustainable processes, such as hydrocarbon transformation and biorefining. However, the wide distribution of acid strength on ASAs often results in undesired side reactions, lowering the product selectivity. Here we developed a strategy for the synthesis of a unique class of ASAs with unvarying strength of Brønsted acid sites (BAS) and Lewis acid sites (LAS) using double-flame-spray pyrolysis. Structural characterization using high-resolution transmission electron microscopy (TEM) and solid-state nuclear magnetic resonance (NMR) spectroscopy showed that the uniform acidity is due to a distinct nanostructure, characterized by a uniform interface of silica-alumina and homogeneously dispersed alumina domains. The BAS population density of as-prepared ASAs is up to 6 times higher than that obtained by classical methods. The BAS/LAS ratio, as well as the population densities of BAS and LAS of these ASAs, could be tuned in a broad range. In cyclohexanol dehydration, the uniform Brønsted acid strength provides a high selectivity to cyclohexene and a nearly linear correlation between acid site densities and cyclohexanol conversion. Moreover, the concerted action of these BAS and LAS leads to an excellent bifunctional Brønsted-Lewis acid catalyst for glucose dehydration, affording a superior 5-hydroxymethylfurfural yield.
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Affiliation(s)
- Zichun Wang
- Laboratory
for Catalysis Engineering, School of Chemical and Biomolecular Engineering
& Sydney Nano Institute, The University
of Sydney, Sydney, NSW 2006, Australia
- Department
of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Robert Buechel
- Particle
Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zuürich, Sonneggstrasse 3, CH-8092 Zuürich, Switzerland
| | - Yijiao Jiang
- Department
of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Lizhuo Wang
- Laboratory
for Catalysis Engineering, School of Chemical and Biomolecular Engineering
& Sydney Nano Institute, The University
of Sydney, Sydney, NSW 2006, Australia
| | - Haimei Xu
- Department
of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Patrice Castignolles
- Australian
Centre for Research on Separation Science (ACROSS), School of Science, Western Sydney University, Parramatta, New South Wales 2150, Australia
| | - Marianne Gaborieau
- Australian
Centre for Research on Separation Science (ACROSS), School of Science, Western Sydney University, Parramatta, New South Wales 2150, Australia
| | - Olivier Lafon
- Univ.
Lille, CNRS, UMR 8181, UCCS-Unité de Catalyse
et de Chimie du Solide, F-59000 Lille, France
- Institut
Universitaire de France, 1, rue Descartes, 75231 Paris Cedex 05, France
| | - Jean-Paul Amoureux
- Univ.
Lille, CNRS, UMR 8181, UCCS-Unité de Catalyse
et de Chimie du Solide, F-59000 Lille, France
- Bruker
Biospin, 34, rue de l’industrie, 67166 Wissembourg, France
- Riken
NMR Science and Development Division, Yokohama, 230-0045 Kanagawa, Japan
| | - Michael Hunger
- Institute
of Chemical Technology, University of Stuttgart, D-70550 Stuttgart, Germany
| | - Alfons Baiker
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Bioscience, ETH Zürich, Hönggerberg, HCI,
Zurich CH-8093, Switzerland
| | - Jun Huang
- Laboratory
for Catalysis Engineering, School of Chemical and Biomolecular Engineering
& Sydney Nano Institute, The University
of Sydney, Sydney, NSW 2006, Australia
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18
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Paluch P, Kupče Ē, Trébosc J, Lafon O, Amoureux JP. Hadamard acquisition of 13 C- 13 C 2-D correlation NMR spectra. Magn Reson Chem 2021; 59:247-256. [PMID: 31714638 DOI: 10.1002/mrc.4969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/02/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
We show that a multiselective excitation with Hadamard encoding is a powerful tool for 2-D acquisition of 13 C─13 C homonuclear correlations. This method is not designed to improve the sensitivity, but rather to reduce the experiment time, provided there is sufficient sensitivity. Therefore, it allows fast acquisition of such 2-D spectra in labeled molecules. The technique has been demonstrated using a U─13 C─15 N histidine hydrochloride monohydrate sample allowing each point of the build-up curves of the 13 C─13 C cross-peaks to be recorded within 4 min 35 s, which is very difficult with conventional methods. Using the U─13 C─15 N f-MLF sample, we have demonstrated that the method can be applied to molecules with 14 13 C resonances with a minimum frequency separation of 240 Hz.
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Affiliation(s)
- Piotr Paluch
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Lodz, Poland
- CNRS-8181, Unit of Catalysis and Chemistry of Solids, University of Lille, Lille, France
| | | | - Julien Trébosc
- CNRS-8181, Unit of Catalysis and Chemistry of Solids, University of Lille, Lille, France
- CNRS-2638, Fédération Chevreul, University of Lille, Lille, France
| | - Olivier Lafon
- CNRS-8181, Unit of Catalysis and Chemistry of Solids, University of Lille, Lille, France
- Department of Chemistry, Institut Universitaire de France, Paris, France
| | - Jean-Paul Amoureux
- CNRS-8181, Unit of Catalysis and Chemistry of Solids, University of Lille, Lille, France
- Bruker Biospin, Wissembourg, France
- NMR Science and Development Division, RIKEN, Yokohama, Japan
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19
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Ślubowska W, Montagne L, Lafon O, Méar F, Kwatek K. B 2O 3-Doped LATP Glass-Ceramics Studied by X-ray Diffractometry and MAS NMR Spectroscopy Methods. Nanomaterials (Basel) 2021; 11:nano11020390. [PMID: 33546296 PMCID: PMC7913521 DOI: 10.3390/nano11020390] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/25/2021] [Accepted: 01/30/2021] [Indexed: 11/19/2022]
Abstract
Two families of glasses in the Li2O-Al2O3-B2O3-TiO2-P2O5 system were prepared via two different synthesis routes: melt-quenching and ball-milling. Subsequently, they were submitted to crystallization and yielded the Li1.3Al0.3Ti1.7(PO4)3 (LATP)-based glass-ceramics. Glasses and corresponding glass-ceramics were studied by complementary X-ray diffraction (XRD) and 27Al, 31P, 7Li, 11B magic-angle spinning nuclear magnetic resonance (MAS NMR) methods in order to compare their structure and phase composition and elucidate the impact of boron additive on their glass-forming properties and crystallization process. XRD studies show that the addition of B2O3 improves the glass-forming properties of glasses prepared by either method and inhibits the precipitation of unwanted phases during heat treatment. MAS NMR studies allowed us to distinguish two LATP phases of slightly different chemical composition suggesting that LATP grains might not be homogeneous. In conclusion, the crystallization of boron-incorporated LATP glasses can is an effective way of obtaining LATP-based solid state electrolytes for the next generation of lithium-ion batteries provided the proper heat-treatment conditions are chosen.
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Affiliation(s)
- Wioleta Ślubowska
- Faculty of Physics, Warsaw University of Technology, 00-662 Warsaw, Poland;
- Correspondence:
| | - Lionel Montagne
- UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, University Lille, CNRS, Centrale Lille, University Artois, F-59000 Lille, France; (L.M.); (O.L.); (F.M.)
| | - Olivier Lafon
- UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, University Lille, CNRS, Centrale Lille, University Artois, F-59000 Lille, France; (L.M.); (O.L.); (F.M.)
- Institut Universitaire de France, 75005 Paris, France
| | - François Méar
- UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, University Lille, CNRS, Centrale Lille, University Artois, F-59000 Lille, France; (L.M.); (O.L.); (F.M.)
| | - Konrad Kwatek
- Faculty of Physics, Warsaw University of Technology, 00-662 Warsaw, Poland;
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20
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Li S, Lafon O, Wang W, Wang Q, Wang X, Li Y, Xu J, Deng F. Recent Advances of Solid-State NMR Spectroscopy for Microporous Materials. Adv Mater 2020; 32:e2002879. [PMID: 32902037 DOI: 10.1002/adma.202002879] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/29/2020] [Indexed: 05/25/2023]
Abstract
Microporous materials have attracted a rapid growth of research interest in materials science and the multidisciplinary area because of their wide applications in catalysis, separation, ion exchange, gas storage, drug release, and sensing. A fundamental understanding of their diverse structures and properties is crucial for rational design of high-performance materials and technological applications in industry. Solid-state NMR (SSNMR), capable of providing atomic-level information on both structure and dynamics, is a powerful tool in the scientific exploration of solid materials. Here, advanced SSNMR instruments and methods for characterization of microporous materials are briefly described. The recent progress of the application of SSNMR for the investigation of microporous materials including zeolites, metal-organic frameworks, covalent organic frameworks, porous aromatic frameworks, and layered materials is discussed with representative work. The versatile SSNMR techniques provide detailed information on the local structure, dynamics, and chemical processes in the confined space of porous materials. The challenges and prospects in SSNMR study of microporous and related materials are discussed.
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Affiliation(s)
- Shenhui Li
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181- UCCS - Unité de Catalyse et Chimie du Solide, Lille, F-59000, France
- Institut Universitaire de France, Paris, 75231, France
| | - Weiyu Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiang Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xingxing Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Yi Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
- International Center of Future Science, Jilin University, Changchun, 130012, China
| | - Jun Xu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Feng Deng
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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21
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Qi G, Chu Y, Wang Q, Wang X, Li Y, Trébosc J, Lafon O, Xu J, Deng F. gem-Diol-Type Intermediate in the Activation of a Ketone on Sn-β Zeolite as Studied by Solid-State NMR Spectroscopy. Angew Chem Int Ed Engl 2020; 59:19532-19538. [PMID: 32449837 DOI: 10.1002/anie.202005589] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/24/2020] [Indexed: 12/20/2022]
Abstract
Lewis acid zeolites have found increasing application in the field of biomass conversion, in which the selective transformation of carbonyl-containing molecules is of particular importance due to their relevance in organic synthesis. Mechanistic insight into the activation of carbonyl groups on Lewis acid sites is challenging and critical for the understanding of the catalytic process, which requires the identification of reaction intermediates. Here we report the observation of a stable surface gem-diol-type species in the activation of acetone on Sn-β zeolite. 13 C, 119 Sn, and 13 C-119 Sn double-resonance NMR spectroscopic studies demonstrate that only the open Sn site ((SiO)3 Sn-OH) on Sn-β is responsible for the formation of the surface species. 13 C MAS NMR experiments together with density functional theory calculations suggest that the gem-diol-type species exhibits high reactivity and can serve as an active intermediate in the Meerwein-Ponndorf-Verley-Oppenauer (MPVO) reaction of acetone with cyclohexanol. The gem-diol-type species offers an energy-preferable pathway for the direct carbon-to-carbon hydrogen transfer between ketone and alcohol. The results provide new insights into the transformation of carbonyl-containing molecules catalyzed by Lewis acid zeolites.
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Affiliation(s)
- Guodong Qi
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yueying Chu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiang Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xingxing Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Yi Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China.,International Center of Future Science, Jilin University, Changchun, 130012, China
| | - Julien Trébosc
- Univ. Lille, CNRS, INRA, Centrale Lille, ENSCL, Univ. Artois, FR 2638-IMEC-Institut Michel-Eugène Chevreul, 59000, Lille, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, 59000, Lille, France.,Institut Universitaire de France, 75231, Paris, France
| | - Jun Xu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Feng Deng
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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22
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Qi G, Chu Y, Wang Q, Wang X, Li Y, Trébosc J, Lafon O, Xu J, Deng F. gem
‐Diol‐Type Intermediate in the Activation of a Ketone on Sn‐β Zeolite as Studied by Solid‐State NMR Spectroscopy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guodong Qi
- National Centre for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yueying Chu
- National Centre for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Qiang Wang
- National Centre for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xingxing Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 China
| | - Yi Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 China
- International Center of Future Science Jilin University Changchun 130012 China
| | - Julien Trébosc
- Univ. Lille CNRS, INRA, Centrale Lille, ENSCL Univ. Artois, FR 2638—IMEC—Institut Michel-Eugène Chevreul 59000 Lille France
| | - Olivier Lafon
- Univ. Lille CNRS, Centrale Lille Univ. Artois, UMR 8181—UCCS—Unité de Catalyse et Chimie du Solide 59000 Lille France
- Institut Universitaire de France 75231 Paris France
| | - Jun Xu
- National Centre for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 China
- University of Chinese Academy of Sciences Beijing 100049 China
- Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 China
| | - Feng Deng
- National Centre for Magnetic Resonance in Wuhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Key Laboratory of Magnetic Resonance in Biological Systems Wuhan Institute of Physics and Mathematics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 China
- University of Chinese Academy of Sciences Beijing 100049 China
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23
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Hu B, Geng F, Zhao C, Doumert B, Trébosc J, Lafon O, Li C, Shen M, Hu B. Deciphering the Origin of High Electrochemical Performance in a Novel Ti-Substituted P2/O3 Biphasic Cathode for Sodium-Ion Batteries. ACS Appl Mater Interfaces 2020; 12:41485-41494. [PMID: 32833421 DOI: 10.1021/acsami.0c11427] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The layered Mn-based oxides (NaxMnO2), which is one of the most promising cathode families for rechargeable sodium-ion batteries, have received considerable attention because of their tunable electrochemical performances and low costs. Herein, a novel P2/O3 intergrown Li-containing Na0.8Li0.27Mn0.68Ti0.05O2 cathode material prepared by Ti-substitution into Mn-site is reported. Benefiting from the synergistic effects of the biphasic composite structure and inactive d0 element substitution, this P2/O3 electrode exhibits high initial charge/discharge capacity and excellent cycling performance. The combination of different characterization techniques including solid-state NMR, electron paramagnetic resonance, X-ray adsorption spectroscopy, and high-resolution transmission electron microscopy gives insights into the local electronic environment, the redox chemistry, and also the microstructure rigidity of these cathode materials upon cycling. On the basis of comprehensive comparison with the Ti-free P2/O3-Na0.8Li0.27Mn0.73O2, the observed improvement on the electrochemical performance is primarily attributed to the mitigation of notorious Mn3+/Mn4+ redox and the enhanced stability of the oxygen charge compensation behavior. From the viewpoint of structure evolution, Ti-substitution restrains the Li+ loss and irreversible structural degradation during cycling. This study provides an in-depth understanding of the electronic and crystal structure evolutions after inactive d0 element substitution and may shed light on the rational design of high-performance P2/O3 biphasic Mn-based layered cathodes.
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Affiliation(s)
- Bei Hu
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 200062 Shanghai, P. R. China
| | - Fushan Geng
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 200062 Shanghai, P. R. China
| | - Chong Zhao
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 200062 Shanghai, P. R. China
| | - Bertrand Doumert
- Université Lille, CNRS, Centrale Lille, Université Artois, UMR 8181, UCCS-Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
- Université Lille, CNRS-2638, Fédération Chevreul, F-59000 Lille, France
| | - Julien Trébosc
- Université Lille, CNRS, Centrale Lille, Université Artois, UMR 8181, UCCS-Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
- Université Lille, CNRS-2638, Fédération Chevreul, F-59000 Lille, France
| | - Olivier Lafon
- Université Lille, CNRS, Centrale Lille, Université Artois, UMR 8181, UCCS-Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
- Institut Universitaire de France, 75005 Paris, France
- Université Lille, CNRS-2638, Fédération Chevreul, F-59000 Lille, France
| | - Chao Li
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 200062 Shanghai, P. R. China
| | - Ming Shen
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 200062 Shanghai, P. R. China
| | - Bingwen Hu
- Shanghai Key Laboratory of Magnetic Resonance, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 200062 Shanghai, P. R. China
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24
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Nagashima H, Trébosc J, Kon Y, Sato K, Lafon O, Amoureux JP. Observation of Low-γ Quadrupolar Nuclei by Surface-Enhanced NMR Spectroscopy. J Am Chem Soc 2020; 142:10659-10672. [DOI: 10.1021/jacs.9b13838] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Hiroki Nagashima
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Julien Trébosc
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181, UCCS - Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
- Univ. Lille, CNRS-2638, Fédération Chevreul, F-59000 Lille, France
| | - Yoshihiro Kon
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Kazuhiko Sato
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181, UCCS - Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
- Institut Universitaire de France, 1 rue Descartes, F-75231 Paris, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181, UCCS - Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
- Bruker Biospin, 34 rue de l’industrie, F-67166 Wissembourg, France
- Riken NMR Science and Development Division, Yokohama, 230-0045 Kanagawa, Japan
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25
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Pham QD, Carlström G, Lafon O, Sparr E, Topgaard D. Quantification of the amount of mobile components in intact stratum corneum with natural-abundance 13C solid-state NMR. Phys Chem Chem Phys 2020; 22:6572-6583. [PMID: 32159206 DOI: 10.1039/d0cp00079e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The outermost layer of the skin is the stratum corneum (SC), which is mainly comprised of solid proteins and lipids. Minor amounts of mobile proteins and lipids are crucial for the macroscopic properties of the SC, including softness, elasticity and barrier function. Still this minor number of mobile components are not well characterized in terms of structure or amount. Conventional quantitative direct polarization (Q-DP) 13C solid-state NMR gives signal amplitudes proportional to concentrations, but fails to quantify the SC mobile components because of spectral overlap with the overwhelming signals from the solids. Spectral editing with the INEPT scheme suppresses the signals from solids, but also modulates the amplitudes of the mobile components depending on their values of the transverse relaxation times T2, scalar couplings JCH, and number of covalently bound hydrogens nH. This study describes a quantitative INEPT (Q-INEPT) method relying on systematic variation of the INEPT timing variables to estimate T2, JCH, nH, and amplitude for each of the resolved resonances from the mobile components. Q-INEPT is validated with a series of model systems containing molecules with different hydrophobicity and dynamics. For selected systems where Q-DP is applicable, the results of Q-INEPT and Q-DP are similar with respect to the linearity and uncertainty of the obtained molar ratios. Utilizing a reference compound with known concentration, we quantify the concentrations of mobile lipids and proteins within the mainly solid SC. By melting all lipids at high temperature, we obtain the total lipid concentration. These Q-INEPT results are the first steps towards a quantitative understanding of the relations between mobile component concentrations and SC macroscopic properties.
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Affiliation(s)
- Quoc Dat Pham
- Division of Physical Chemistry, Chemistry Department, Lund University, Lund, Sweden and Department of Food Technology, Lund University, Lund, Sweden
| | - Göran Carlström
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Lund, Sweden
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France and Institut Universitaire de France (IUF), Paris, France
| | - Emma Sparr
- Division of Physical Chemistry, Chemistry Department, Lund University, Lund, Sweden
| | - Daniel Topgaard
- Division of Physical Chemistry, Chemistry Department, Lund University, Lund, Sweden
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26
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Lesot P, Aroulanda C, Berdagué P, Meddour A, Merlet D, Farjon J, Giraud N, Lafon O. Multinuclear NMR in polypeptide liquid crystals: Three fertile decades of methodological developments and analytical challenges. Prog Nucl Magn Reson Spectrosc 2020; 116:85-154. [PMID: 32130960 DOI: 10.1016/j.pnmrs.2019.10.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 10/24/2019] [Indexed: 06/10/2023]
Abstract
NMR spectroscopy of oriented samples makes accessible residual anisotropic intramolecular NMR interactions, such as chemical shift anisotropy (RCSA), dipolar coupling (RDC), and quadrupolar coupling (RQC), while preserving high spectral resolution. In addition, in a chiral aligned environment, enantiomers of chiral molecules or enantiopic elements of prochiral compounds adopt different average orientations on the NMR timescale, and hence produce distinct NMR spectra or signals. NMR spectroscopy in chiral aligned media is a powerful analytical tool, and notably provides unique information on (pro)chirality analysis, natural isotopic fractionation, stereochemistry, as well as molecular conformation and configuration. Significant progress has been made in this area over the three last decades, particularly using polypeptide-based chiral liquid crystals (CLCs) made of organic solutions of helically chiral polymers (as PBLG) in organic solvents. This review presents an overview of NMR in polymeric LCs. In particular, we describe the theoretical tools and the major NMR methods that have been developed and applied to study (pro)chiral molecules dissolved in such oriented solvents. We also discuss the representative applications illustrating the analytical potential of this original NMR tool. This overview article is dedicated to thirty years of original contributions to the development of NMR spectroscopy in polypeptide-based chiral liquid crystals.
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Affiliation(s)
- Philippe Lesot
- Université Paris Sud/Université Paris-Saclay, UMR CNRS 8182, Institut de Chimie Moléculaire et des Matériaux d'Orsay, ICMMO, Equipe RMN en Milieu Orienté, Bât. 410, 15 rue du Doyen Georges Poitou, F-91405 Orsay cedex, France; Centre National de la Recherche Scientifique (CNRS), France.
| | - Christie Aroulanda
- Université Paris Sud/Université Paris-Saclay, UMR CNRS 8182, Institut de Chimie Moléculaire et des Matériaux d'Orsay, ICMMO, Equipe RMN en Milieu Orienté, Bât. 410, 15 rue du Doyen Georges Poitou, F-91405 Orsay cedex, France
| | - Philippe Berdagué
- Université Paris Sud/Université Paris-Saclay, UMR CNRS 8182, Institut de Chimie Moléculaire et des Matériaux d'Orsay, ICMMO, Equipe RMN en Milieu Orienté, Bât. 410, 15 rue du Doyen Georges Poitou, F-91405 Orsay cedex, France
| | - Abdelkrim Meddour
- Université Paris Sud/Université Paris-Saclay, UMR CNRS 8182, Institut de Chimie Moléculaire et des Matériaux d'Orsay, ICMMO, Equipe RMN en Milieu Orienté, Bât. 410, 15 rue du Doyen Georges Poitou, F-91405 Orsay cedex, France
| | - Denis Merlet
- Université Paris Sud/Université Paris-Saclay, UMR CNRS 8182, Institut de Chimie Moléculaire et des Matériaux d'Orsay, ICMMO, Equipe RMN en Milieu Orienté, Bât. 410, 15 rue du Doyen Georges Poitou, F-91405 Orsay cedex, France
| | - Jonathan Farjon
- Centre National de la Recherche Scientifique (CNRS), France; Faculté des Sciences et Techniques de Nantes, UMR CNRS 6230, Chimie et Interdisciplinarité, Synthèse, Analyse, Modélisation, CEISAM, Equipe EBSI, BP 92208, 2 rue de la Houssinière, F-44322 Nantes cedex 3, France
| | - Nicolas Giraud
- Université Paris Descartes, Sorbonne Paris Cité, UMR CNRS 8601, Laboratory of Pharmacological and Toxicological Chemistry and Biochemistry, LPTCB, 45 rue des Saints Pères, F-75006 Paris, France
| | - Olivier Lafon
- Universite de Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR CNRS 8181, Unité de Catalyse et Chimie du Solide, UCCS, F-59000 Lille, France; Institut Universitaire de France (IUF), France
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Wang Z, Li T, Jiang Y, Lafon O, Liu Z, Trébosc J, Baiker A, Amoureux JP, Huang J. Acidity enhancement through synergy of penta- and tetra-coordinated aluminum species in amorphous silica networks. Nat Commun 2020; 11:225. [PMID: 31932684 PMCID: PMC6957685 DOI: 10.1038/s41467-019-13907-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 11/25/2019] [Indexed: 11/30/2022] Open
Abstract
Amorphous silica-aluminas (ASAs) are widely used in acid-catalyzed C-H activation reactions and biomass conversions in large scale, which can be promoted by increasing the strength of surface Brønsted acid sites (BAS). Here, we demonstrate the first observation on a synergistic effect caused by two neighboring Al centers interacting with the same silanol group in flame-made ASAs with high Al content. The two close Al centers decrease the electron density on the silanol oxygen and thereby enhance its acidity, which is comparable to that of dealuminated zeolites, while ASAs with small or moderate Al contents provide mainly moderate acidity, much lower than that of zeolites. The ASAs with enhanced acidity exhibit outstanding performances in C-H bond activation of benzene and glucose dehydration to 5-hydroxymethylfurfural, simultaneously with an excellent calcination stability and resistance to leaching, and they offer an interesting potential for a wide range of acid and multifunctional catalysis.
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Affiliation(s)
- Zichun Wang
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering & Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
- Department of Engineering, Macquarie University, Sydney, NSW, 2109, Australia
| | - Tong Li
- Institute for Materials & ZGH, Ruhr-Universität Bochum, 44801, Bochum, Germany
| | - Yijiao Jiang
- Department of Engineering, Macquarie University, Sydney, NSW, 2109, Australia
| | - Olivier Lafon
- Univ. Lille, CNRS, UMR 8181, UCCS-Unité de Catalyse et de Chimie du Solide, F-59000, Lille, France
- Institut Universitaire de France, Centrale Lille, ENSCL, Villeneuve-d'Ascq, France
| | - Zongwen Liu
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering & Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Julien Trébosc
- Univ. Lille, CNRS, INRA, Centrale Lille, ENSCL, Univ. Artois, FR 2638 - IMEC - Institut Michel-Eugène Chevreul, F-59000, Lille, France
| | - Alfons Baiker
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH, Zürich, Hönggerberg, HCI, CH-8093, Switzerland
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, UMR 8181, UCCS-Unité de Catalyse et de Chimie du Solide, F-59000, Lille, France.
- Bruker Biospin, 34, rue de l'industrie, 67166, Wissembourg, France.
- Riken NMR Science and Development Division, Yokohama, 230-0045, Kanagawa, Japan.
| | - Jun Huang
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering & Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia.
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Kwatek K, Ślubowska W, Trébosc J, Lafon O, Nowiński J. Structural and electrical properties of ceramic Li-ion conductors based on Li1.3Al0.3Ti1.7(PO4)3-LiF. Ann Ital Chir 2020. [DOI: 10.1016/j.jeurceramsoc.2019.08.032] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Xin S, Wang Q, Xu J, Chu Y, Wang P, Feng N, Qi G, Trébosc J, Lafon O, Fan W, Deng F. The acidic nature of "NMR-invisible" tri-coordinated framework aluminum species in zeolites. Chem Sci 2019; 10:10159-10169. [PMID: 32055370 PMCID: PMC6979346 DOI: 10.1039/c9sc02634g] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 09/11/2019] [Indexed: 01/19/2023] Open
Abstract
The unambiguous characterization of different acid sites in zeolites is of great importance for understanding their catalytic performance and the rational design of highly efficient zeolite catalysts. In addition to various well-characterized extra-framework Al species, a tri-coordinated framework aluminum species can also serve as a Lewis acid site in zeolites, which is "NMR-invisible" owing to its extremely distorted local environment. Here we provide a feasible and reliable approach to elucidate the acidic nature of the tri-coordinated framework Al in dehydrated H-ZSM-5 zeolites via sensitivity-enhanced two-dimensional (2D) multiple nuclear correlation NMR experiments coupled with trimethylphosphine oxide (TMPO) probe molecules. Two types of tri-coordinated framework Al sites have been unambiguously identified, which amount to 11.6% of the total Brønsted and Lewis acid sites. Furthermore, it was found that synergistic effects arising from the close spatial proximity between the tri-coordinated framework Al site and the Brønsted acid site lead to the generation of superacidity (with an acid strength stronger than 100% H2SO4) in the zeolite.
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Affiliation(s)
- Shaohui Xin
- National Centre for Magnetic Resonance in Wuhan , State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics , CAS Key Laboratory of Magnetic Resonance in Biological Systems , Wuhan Institute of Physics and Mathematics , Chinese Academy of Sciences , Wuhan 430071 , China . ; .,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Qiang Wang
- National Centre for Magnetic Resonance in Wuhan , State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics , CAS Key Laboratory of Magnetic Resonance in Biological Systems , Wuhan Institute of Physics and Mathematics , Chinese Academy of Sciences , Wuhan 430071 , China . ;
| | - Jun Xu
- National Centre for Magnetic Resonance in Wuhan , State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics , CAS Key Laboratory of Magnetic Resonance in Biological Systems , Wuhan Institute of Physics and Mathematics , Chinese Academy of Sciences , Wuhan 430071 , China . ;
| | - Yueying Chu
- National Centre for Magnetic Resonance in Wuhan , State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics , CAS Key Laboratory of Magnetic Resonance in Biological Systems , Wuhan Institute of Physics and Mathematics , Chinese Academy of Sciences , Wuhan 430071 , China . ;
| | - Pengfei Wang
- State Key Laboratory of Coal Conversion , Institute of Coal Chemistry , Chinese Academy of Sciences , P.O. Box 165 , Taiyuan , Shanxi 030001 , P. R. China
| | - Ningdong Feng
- National Centre for Magnetic Resonance in Wuhan , State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics , CAS Key Laboratory of Magnetic Resonance in Biological Systems , Wuhan Institute of Physics and Mathematics , Chinese Academy of Sciences , Wuhan 430071 , China . ;
| | - Guodong Qi
- National Centre for Magnetic Resonance in Wuhan , State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics , CAS Key Laboratory of Magnetic Resonance in Biological Systems , Wuhan Institute of Physics and Mathematics , Chinese Academy of Sciences , Wuhan 430071 , China . ;
| | - Julien Trébosc
- Univ. Lille , CNRS , ENSCL , UMR 8181 , Unité de Catalyse et de Chimie du Solide , 59000 Lille , France
| | - Olivier Lafon
- Univ. Lille , CNRS , ENSCL , UMR 8181 , Unité de Catalyse et de Chimie du Solide , 59000 Lille , France.,Institut Universitaire de France , 75231 Paris , France
| | - Weibin Fan
- State Key Laboratory of Coal Conversion , Institute of Coal Chemistry , Chinese Academy of Sciences , P.O. Box 165 , Taiyuan , Shanxi 030001 , P. R. China
| | - Feng Deng
- National Centre for Magnetic Resonance in Wuhan , State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics , CAS Key Laboratory of Magnetic Resonance in Biological Systems , Wuhan Institute of Physics and Mathematics , Chinese Academy of Sciences , Wuhan 430071 , China . ;
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Rankin AGM, Trébosc J, Pourpoint F, Amoureux JP, Lafon O. Recent developments in MAS DNP-NMR of materials. Solid State Nucl Magn Reson 2019; 101:116-143. [PMID: 31189121 DOI: 10.1016/j.ssnmr.2019.05.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/21/2019] [Accepted: 05/21/2019] [Indexed: 05/03/2023]
Abstract
Solid-state NMR spectroscopy is a powerful technique for the characterization of the atomic-level structure and dynamics of materials. Nevertheless, the use of this technique is often limited by its lack of sensitivity, which can prevent the observation of surfaces, defects or insensitive isotopes. Dynamic Nuclear Polarization (DNP) has been shown to improve by one to three orders of magnitude the sensitivity of NMR experiments on materials under Magic-Angle Spinning (MAS), at static magnetic field B0 ≥ 5 T, conditions allowing for the acquisition of high-resolution spectra. The field of DNP-NMR spectroscopy of materials has undergone a rapid development in the last ten years, spurred notably by the availability of commercial DNP-NMR systems. We provide here an in-depth overview of MAS DNP-NMR studies of materials at high B0 field. After a historical perspective of DNP of materials, we describe the DNP transfers under MAS, the transport of polarization by spin diffusion and the various contributions to the overall sensitivity of DNP-NMR experiments. We discuss the design of tailored polarizing agents and the sample preparation in the case of materials. We present the DNP-NMR hardware and the influence of key experimental parameters, such as microwave power, magnetic field, temperature and MAS frequency. We give an overview of the isotopes that have been detected by this technique, and the NMR methods that have been combined with DNP. Finally, we show how MAS DNP-NMR has been applied to gain new insights into the structure of organic, hybrid and inorganic materials with applications in fields, such as health, energy, catalysis, optoelectronics etc.
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Affiliation(s)
- Andrew G M Rankin
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France; Univ. Lille, CNRS-FR2638, Fédération Chevreul, F-59000 Lille, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France; Bruker Biospin, 34 rue de l'industrie, F-67166, Wissembourg, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France; Institut Universitaire de France, 1 rue Descartes, F-75231, Paris, France.
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Paluch P, Rankin AGM, Trébosc J, Lafon O, Amoureux JP. Analysis of HMQC experiments applied to a spin ½ nucleus subject to very large CSA. Solid State Nucl Magn Reson 2019; 100:11-25. [PMID: 30908976 DOI: 10.1016/j.ssnmr.2019.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 06/09/2023]
Abstract
The acquisition of solid-state NMR spectra of "heavy" spin I = 1/2 nuclei, such as 119Sn, 195Pt, 199Hg or 207Pb can often prove challenging due to the presence of large chemical shift anisotropy (CSA), which can cause significant broadening of spectral lines. However, previous publications have shown that well-resolved spectra can be obtained via inverse 1H detection using HMQC experiments in combination with fast magic angle spinning. In this work, the efficiencies of different 195Pt excitation schemes are analyzed using SIMPSON numerical simulations and experiments performed on cis- and transplatin samples. These schemes include: hard pulses (HP), selective long pulses (SLP) and rotor-synchronized DANTE trains of pulses. The results show that for spectra of species with very large CSA, HP is little efficient, but that both DANTE and SLP provide efficient excitation profiles over a wide range of CSA values. In particular, it is revealed that the SLP scheme is highly robust to offset, pulse amplitude and length, and is simple to set up. These factors make SLP ideally suited to widespread use by "non-experts" for carrying out analyses of materials containing "heavy" spin I = 1/2 nuclei that are subject to very large CSAs. Finally, the existence of an "intermediate" excitation regime, with an rf-field strength in between those of HP and SLP, which is effective for large CSA, is demonstrated. It must be noted that in some samples, multiple sites may exist with very different CSAs. This is the case for 195Pt species with either square-planar or octahedral structures, with large or small CSA, respectively. These two types of CSAs can only be excited simultaneously with DANTE trains, which scale up the effective rf-field. Another way to obtain all the information is to perform two different experiments: one with SLP and the second with HP to excite the sites with moderate/large and small/moderate CSAs, respectively. These two complementary experiments, recorded with two different spinning speeds, can also be used to discriminate the center-band resonances from the spinning sidebands.
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Affiliation(s)
- Piotr Paluch
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, PL-90 363 Lodz, Poland; Univ. Lille, CNRS 8181, UCCS: Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France.
| | - Andrew G M Rankin
- Univ. Lille, CNRS 8181, UCCS: Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS 8181, UCCS: Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France
| | - Olivier Lafon
- Univ. Lille, CNRS 8181, UCCS: Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Institut Universitaire de France, 1 Rue Descartes, F-75231 Paris Cedex 05, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS 8181, UCCS: Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Bruker Biospin, 34 Rue de L'Industrie, F-67166 Wissembourg, France.
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Duong NT, Trébosc J, Lafon O, Amoureux JP. Improved sensitivity and quantification for 29Si NMR experiments on solids using UDEFT (Uniform Driven Equilibrium Fourier Transform). Solid State Nucl Magn Reson 2019; 100:52-62. [PMID: 30959243 DOI: 10.1016/j.ssnmr.2019.03.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/21/2019] [Accepted: 03/21/2019] [Indexed: 06/09/2023]
Abstract
We demonstrate the possibility to use UDEFT (Uniform Driven Equilibrium Fourier Transform) technique in order to improve the sensitivity and the quantification of one-dimensional 29Si NMR experiments under magic-angle spinning (MAS). We derive an analytical expression of the signal-to-noise ratios of UDEFT and single-pulse (SP) experiments subsuming the contributions of transient and steady-state regimes. Using numerical spin dynamics simulations and experiments on 29Si-enriched amorphous silica and borosilicate glass, we show that 59180298059180 refocusing composite π-pulse and the adiabatic inversion using tanh/tan modulation improve the robustness of UDEFT technique to rf-inhomogeneity, offset, and chemical shift anisotropy. These pulses combined with a two-step phase cycle limit the pulse imperfections and the artifacts produced by stimulated echoes. The sensitivity of SP, UDEFT and CPMG (Carr-Purcell-Meiboom-Gill) techniques are experimentally compared on functionalized and non-functionalized mesoporous silica. Furthermore, experiments on a flame retardant material prove that UDEFT technique provides a better quantification of 29Si sites with higher sensitivity than SP method.
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Affiliation(s)
- Nghia Tuan Duong
- Univ. Lille, Centrale Lille, ENSCL, Univ. Artois, CNRS-8181, UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, Centrale Lille, ENSCL, Univ. Artois, CNRS-8181, UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Univ. Lille, CNRS-FR2638, Fédération Chevreul, F-59000 Lille, France.
| | - Olivier Lafon
- Univ. Lille, Centrale Lille, ENSCL, Univ. Artois, CNRS-8181, UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Institut Universitaire de France, 1 rue Descartes, F-75231 Paris, France
| | - Jean-Paul Amoureux
- Univ. Lille, Centrale Lille, ENSCL, Univ. Artois, CNRS-8181, UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Bruker Biospin, 34 rue de l'industrie, F-67166 Wissembourg, France.
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Rankin AGM, Trébosc J, Paluch P, Lafon O, Amoureux JP. Evaluation of excitation schemes for indirect detection of 14N via solid-state HMQC NMR experiments. J Magn Reson 2019; 303:28-41. [PMID: 30999136 DOI: 10.1016/j.jmr.2019.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 04/03/2019] [Accepted: 04/04/2019] [Indexed: 06/09/2023]
Abstract
It has previously been shown that 14N NMR spectra can be reliably obtained through indirect detection via HMQC experiments. This method exploits the transfer of coherence between single-(SQ) or double-quantum (DQ) 14N coherences, and SQ coherences of a suitable spin-1/2 'spy' nucleus, e.g., 1H. It must be noted that SQ-SQ methods require a carefully optimized setup to minimize the broadening related to the first-order quadrupole interaction (i.e., an extremely well-adjusted magic angle and a highly stable spinning speed), whereas DQ-SQ ones do not. In this work, the efficiencies of four 14N excitation schemes (DANTE, XiX, Hard Pulse (HP), and Selective Long Pulse (SLP)) are compared using J-HMQC based numerical simulations and either SQ-SQ or DQ-SQ 1H-{14N} D-HMQC experiments on l-histidine HCl and N-acetyl-l-valine at 18.8 T and 62.5 kHz MAS. The results demonstrate that both DANTE and SLP provide a more efficient 14N excitation profile than XiX and HP. Furthermore, it is shown that the SLP scheme: (i) is efficient over a large range of quadrupole interaction, (ii) is highly robust to offset and rf-pulse length and amplitude, and (iii) is very simple to set up. These factors make SLP ideally suited to widespread, non-specialist use in solid-state NMR analyses of nitrogen-containing materials.
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Affiliation(s)
- Andrew G M Rankin
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France.
| | - Julien Trébosc
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Univ. Lille, CNRS-FR2638, Fédération Chevreul, F-59000 Lille, France
| | - Piotr Paluch
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, PL-90363 Lodz, Poland
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Institut Universitaire de France, 1 rue Descartes, F-75231 Paris Cedex 05, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Bruker Biospin, 34 rue de l'industrie, F-67166 Wissembourg, France.
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Giovine R, Trébosc J, Pourpoint F, Lafon O, Amoureux JP. Magnetization transfer from protons to quadrupolar nuclei in solid-state NMR using PRESTO or dipolar-mediated refocused INEPT methods. J Magn Reson 2019; 299:109-123. [PMID: 30594000 DOI: 10.1016/j.jmr.2018.12.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 12/11/2018] [Accepted: 12/17/2018] [Indexed: 06/09/2023]
Abstract
In solid-state NMR spectroscopy, the through-space transfer of magnetization from protons to quadrupolar nuclei is employed to probe proximities between those isotopes. Furthermore, such transfer, in conjunction with Dynamic Nuclear Polarization (DNP), can enhance the NMR sensitivity of quadrupolar nuclei, as it allows the transfer of DNP-enhanced 1H polarization to surrounding nuclei. We compare here the performances of two approaches to achieve such transfer: PRESTO (Phase-shifted Recoupling Effects a Smooth Transfer of Order), which is currently the method of choice to achieve the magnetization transfer from protons to quadrupolar nuclei and which has been shown to supersede Cross-Polarization under Magic-Angle Spinning (MAS) for quadrupolar nuclei and D-RINEPT (Dipolar-mediated Refocused Insensitive Nuclei Enhanced by Polarization Transfer) using symmetry-based SR412 recoupling, which has already been employed to transfer the magnetization in the reverse way from half-integer quadrupolar spin to protons. We also test the PRESTO sequence with R1676 recoupling using 270090180 composite π-pulses as inversion elements. This recoupling scheme, which has previously been proposed to reintroduce 1H Chemical Shift Anisotropy (CSA) at high MAS frequencies with high robustness to rf-field inhomogeneity, has not so far been employed to reintroduce dipolar couplings with protons. These various techniques to transfer magnetization from protons to quadrupolar nuclei are analyzed using (i) an average Hamiltonian theory, (ii) numerical simulations of spin dynamics, and (iii) experimental 1H → 27Al and 1H → 17O transfers in as-synthesized AlPO4-14 and 17O-labelled fumed silica, respectively. The experiments and simulations are done at two magnetic fields (9.4 and 18.8 T) and several spinning speeds (15, 18-24 and 60 kHz). This analysis indicates that owing to its γ-encoded character, PRESTO yields the highest transfer efficiency at low magnetic fields and MAS frequencies, whereas owing to its higher robustness to rf-field inhomogeneity and chemical shifts, D-RINEPT is more sensitive at high fields and MAS frequencies, notably for protons exhibiting large offset or CSA, such as those involved in hydrogen bonds.
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Affiliation(s)
- Raynald Giovine
- Univ. Lille, CNRS-8181, UCCS: Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS-8181, UCCS: Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS-8181, UCCS: Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France
| | - Olivier Lafon
- Univ. Lille, CNRS-8181, UCCS: Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; IUF, Institut Universitaire de France, 1 rue Descartes, 75231 Paris, France.
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS-8181, UCCS: Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Bruker France, 34 rue de l'Industrie, F-67166 Wissembourg, France.
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Nagashima H, Lilly Thankamony AS, Trébosc J, Montagne L, Kerven G, Amoureux JP, Lafon O. Observation of proximities between spin-1/2 and quadrupolar nuclei in solids: Improved robustness to chemical shielding using adiabatic symmetry-based recoupling. Solid State Nucl Magn Reson 2018; 94:7-19. [PMID: 30103084 DOI: 10.1016/j.ssnmr.2018.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 07/17/2018] [Accepted: 07/17/2018] [Indexed: 06/08/2023]
Abstract
We introduce a novel heteronuclear dipolar recoupling based on the R21-1 symmetry, which uses the tanh/tan (tt) shaped pulse as a basic inversion element and is denoted R21-1(tt). Using first-order average Hamiltonian theory, we show that this sequence is non-γ-encoded and that it reintroduces the |m| = 1 spatial component of the Chemical Shift Anisotropy (CSA) of the irradiated isotope and its heteronuclear dipolar interactions. Using numerical simulations and one-dimensional (1D) 27Al-{31P} through-space D-HMQC (Dipolar Heteronuclear Multiple-Quantum Correlation) experiments on VPI-5, we compare the performances of this recoupling to those of other non-γ-encoded |m| = 1 heteronuclear recoupling schemes: REDOR (Rotational-Echo DOuble Resonance), SFAM (Simultaneous Frequency and Amplitude Modulation) and R42-1(tt). Such comparison indicates that the R21-1(tt) scheme is more robust to CSA, offset and radiofrequency field inhomogeneities than the other schemes. We take advantage of the high robustness of R21-1(tt) to CSA and offset to demonstrate the possibility to correlate the signals of 207Pb isotope with those of neighboring half-integer spin quadrupolar nuclei. Such approach is demonstrated experimentally by acquiring 11B-{207Pb} D-HMQC 2D spectra of Pb4O(BO3)2 crystalline powder.
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Affiliation(s)
- Hiroki Nagashima
- Univ. Lille, CNRS-8181, UCCS-Unit of Catalysis and Chemistry of Solids, F-59000, Lille, France; Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | | | - Julien Trébosc
- Univ. Lille, CNRS-8181, UCCS-Unit of Catalysis and Chemistry of Solids, F-59000, Lille, France
| | - Lionel Montagne
- Univ. Lille, CNRS-8181, UCCS-Unit of Catalysis and Chemistry of Solids, F-59000, Lille, France
| | - Gwendal Kerven
- Univ. Lorraine, CNRS-7036, CRM2, F-54506, Vandœuvre-lès-Nancy, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS-8181, UCCS-Unit of Catalysis and Chemistry of Solids, F-59000, Lille, France; Bruker Biospin, 34 rue de l'industrie, F-67166, Wissembourg, France.
| | - Olivier Lafon
- Univ. Lille, CNRS-8181, UCCS-Unit of Catalysis and Chemistry of Solids, F-59000, Lille, France; Institut Universitaire de France, 1 rue Descartes, F-75231, Paris, France.
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Li Y, Trébosc J, Hu B, Shen M, Amoureux JP, Lafon O. Indirect detection of broad spectra in solid-state NMR using interleaved DANTE trains. J Magn Reson 2018; 294:101-114. [PMID: 30032034 DOI: 10.1016/j.jmr.2018.07.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 07/03/2018] [Accepted: 07/07/2018] [Indexed: 06/08/2023]
Abstract
We analyze the performances and the optimization of 1H-{I} HMQC experiments using basic and interleaved DANTE schemes for the indirect detection of nuclei I = 1/2 or 1 exhibiting wide lines dominated by chemical shift anisotropy (CSA) or quadrupole interaction, respectively. These sequences are first described using average Hamiltonian theory. Then, we analyze using numerical simulations (i) the optimal lengths of the DANTE train and the individual pulses, (ii) the robustness of these experiments to offset, and (iii) the optimal choice of the defocusing and refocusing times for both 1H-{I} J- and D-HMQC sequences for 195Pt (I = 1/2) and 14N (I = 1) nuclei subject to large CSA and quadrupole interaction, respectively. These simulations are compared to 1H-{14N} D-HMQC experiments on γ-glycine and L-histidine.HCl at B0 = 18.8 T and MAS frequency of 62.5 kHz. The present study shows that (i) the optimal defocusing and refocusing times do not depend on the chosen DANTE scheme, (ii) the DANTE trains must be applied with the highest rf-field compatible with the probe specifications and the stability of the sample, (iii) the excitation bandwidth along the indirect dimension of HMQC sequence using DANTE trains is inversely proportional to their length, (iv) interleaved DANTE trains increase the excitation bandwidth of these sequences, and (v) dephasing under residual 1H-1H and 1H-I dipolar couplings, as well as 14N second-order quadrupole interaction, during the length of the DANTE scheme attenuate the transfer efficiency.
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Affiliation(s)
- Yixuan Li
- Univ. Lille, CNRS, UMR 8181-UCCS, Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France; Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Materials Science, East China Normal University, Shanghai 200062, China
| | - Julien Trébosc
- Univ. Lille, CNRS, UMR 8181-UCCS, Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Bingwen Hu
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Materials Science, East China Normal University, Shanghai 200062, China
| | - Ming Shen
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Materials Science, East China Normal University, Shanghai 200062, China
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, UMR 8181-UCCS, Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France; Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Materials Science, East China Normal University, Shanghai 200062, China; Bruker France, 34 rue de l'Industrie, F-67166 Wissembourg, France.
| | - Olivier Lafon
- Univ. Lille, CNRS, UMR 8181-UCCS, Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France; Institut Universitaire de France, 1, rue Descartes, 75231 Paris, France.
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Paluch P, Pawlak T, Ławniczak K, Trébosc J, Lafon O, Amoureux JP, Potrzebowski MJ. Simple and Robust Study of Backbone Dynamics of Crystalline Proteins Employing 1H- 15N Dipolar Coupling Dispersion. J Phys Chem B 2018; 122:8146-8156. [PMID: 30070484 DOI: 10.1021/acs.jpcb.8b04557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a new solid-state multidimensional NMR approach based on the cross-polarization with variable-contact pulse sequence [ Paluch , P. ; Pawlak , T. ; Amoureux , J.-P. ; Potrzebowski , M. J. J. Magn. Reson. 233 , 2013 , 56 ], with 1H inverse detection and very fast magic angle spinning (νR = 60 kHz), dedicated to the measurement of local molecular motions of 1H-15N vectors. The introduced three-dimensional experiments, 1H-15N-1H and hCA(N)H, are particularly useful for the study of molecular dynamics of proteins and other complex structures. The applicability and power of this methodology have been revealed by employing as a model sample the GB-1 small protein doped with Na2CuEDTA. The results clearly prove that the dispersion of 1H-15N dipolar coupling constants well correlates with higher order structure of the protein. Our approach complements the conventional studies and offers a fast and reasonably simple method.
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Affiliation(s)
- Piotr Paluch
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , PL-90363 Łódź , Poland
| | - Tomasz Pawlak
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , PL-90363 Łódź , Poland
| | - Karol Ławniczak
- Department of Theoretical Physics, Faculty of Physics and Applied Informatics , University of Łódź , Pomorska 149/153 , PL-90236 Łódź , Poland
| | - Julien Trébosc
- Unit of Catalysis and Chemistry of Solids (UCCS) , Univ. Lille, UMR 8181 , F-59000 Lille , France
| | - Olivier Lafon
- Unit of Catalysis and Chemistry of Solids (UCCS) , Univ. Lille, UMR 8181 , F-59000 Lille , France
| | - Jean-Paul Amoureux
- Unit of Catalysis and Chemistry of Solids (UCCS) , Univ. Lille, UMR 8181 , F-59000 Lille , France.,Bruker France , 34 rue de l'Industrie , F-67166 Wissembourg , France
| | - Marek J Potrzebowski
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , PL-90363 Łódź , Poland
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Gan Z, Hung I, Nishiyama Y, Amoureux JP, Lafon O, Nagashima H, Trébosc J, Hu B. 14N overtone nuclear magnetic resonance of rotating solids. J Chem Phys 2018; 149:064201. [PMID: 30111134 PMCID: PMC8808743 DOI: 10.1063/1.5044653] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 07/17/2018] [Indexed: 11/14/2022] Open
Abstract
By irradiating and observing at twice the 14N Larmor frequency, overtone (OT) nuclear magnetic resonance (NMR) is capable of obtaining 14NOT spectra without first-order quadrupolar broadening. Direct excitation and detection of the usually "forbidden" double-quantum transition is mediated by the perturbation from the large quadrupole interaction to the spin states quantized by the Zeeman interaction. A recent study [L. A. O'Dell and C. I. Ratcliffe, Chem. Phys. Lett. 514, 168 (2011)] has shown that 14NOT NMR under magic-angle spinning (MAS) can yield high-resolution spectra with typical second-order quadrupolar line shapes allowing the measurement of 14N chemical shift and quadrupolar coupling parameters. This article has also shown that under MAS the main 14NOT peak is shifted by twice the sample spinning frequency with respect to its static position. We present the theory of 14NOT NMR of static or rotating samples and the physical picture of the intriguing spinning-induced shift in the second case. We use perturbation theory for the case of static samples and Floquet theory for rotating samples. In both cases, the results can be described by a so-called OT parameter that scales down the 14NOT radio-frequency (rf) excitation and signal detection. This OT parameter shows that the components of the rf field, which are transverse and longitudinal with respect to the magnetic field, are both effective for 14NOTrf excitation and signal detection. In the case of MAS at angular frequency ωr , the superposition of the excitation and detection components in the OT parameter makes either the +2ωr or -2ωr term the dominant 14NOT signal, depending on the sense of sample spinning with respect to the magnetic field. This leads to an apparent 14NOT signal shifted at twice the spinning frequency. The features of 14NOT NMR spectra for both static and rotating samples are illustrated with simulations. The spinning induced shift and its dependence on the spinning direction are confirmed experimentally by reversing the spinning direction and the field of the 36 T series-connected hybrid magnet at the US National High Magnetic Field Laboratory.
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Affiliation(s)
- Zhehong Gan
- Center of Interdisciplinary Magnetic Resonance, National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, USA
| | - Ivan Hung
- Center of Interdisciplinary Magnetic Resonance, National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, USA
| | | | | | | | - Hiroki Nagashima
- Univ. Lille, CNRS UMR 8181, UCCS Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS UMR 8181, UCCS Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France
| | - Bingwen Hu
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Materials Science, East China Normal University, Shanghai 200062, China
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Kupče Ē, Trébosc J, Perrone B, Lafon O, Amoureux JP. Recording 13C- 15N HMQC 2D sparse spectra in solids in 30 s. J Magn Reson 2018; 288:76-83. [PMID: 29438833 DOI: 10.1016/j.jmr.2018.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 01/24/2018] [Accepted: 01/27/2018] [Indexed: 06/08/2023]
Abstract
We propose a dipolar HMQC Hadamard-encoded (D-HMQC-Hn) experiment for fast 2D correlations of abundant nuclei in solids. The main limitation of the Hadamard methods resides in the length of the encoding pulses, which results from a compromise between the selectivity and the sensitivity due to losses. For this reason, these methods should mainly be used with sparse spectra, and they profit from the increased separation of the resonances at high magnetic fields. In the case of the D-HMQC-Hn experiments, we give a simple rule that allows directly setting the optimum length of the selective pulses, versus the minimum separation of the resonances in the indirect dimension. The demonstration has been performed on a fully 13C,15N labelled f-MLF sample, and it allowed recording the build-up curves of the 13C-15N cross-peaks within 10 min. However, the method could also be used in the case of less sensitive samples, but with more accumulations.
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Affiliation(s)
- Ēriks Kupče
- Bruker UK Limited, Banner Lane, Coventry CV4 9GH, UK
| | - Julien Trébosc
- Univ. Lille, CNRS-8181, UCCS, Unit of Catalysis and Chemistry of Solids, 59000 Lille, France
| | - Barbara Perrone
- Bruker BioSpin AG, Industriestrasse 26, CH-8117 Fällanden, Switzerland
| | - Olivier Lafon
- Univ. Lille, CNRS-8181, UCCS, Unit of Catalysis and Chemistry of Solids, 59000 Lille, France; Institut Universitaire de France, 1, rue Descartes, 75231 Paris Cedex 05, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS-8181, UCCS, Unit of Catalysis and Chemistry of Solids, 59000 Lille, France; Bruker Biospin, 34, rue de l'industrie, 67166 Wissembourg, France.
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Nagashima H, Trébosc J, Lafon O, Pourpoint F, Paluch P, Potrzebowski MJ, Amoureux JP. Imaging the spatial distribution of radiofrequency field, sample and temperature in MAS NMR rotor. Solid State Nucl Magn Reson 2017; 87:137-142. [PMID: 28867557 DOI: 10.1016/j.ssnmr.2017.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 08/06/2017] [Accepted: 08/08/2017] [Indexed: 06/07/2023]
Abstract
We investigate using nutation experiments the spatial distribution of radiofrequency (rf) field, sample, temperature and cross-polarization transfer efficiency in 1.3 mm rotor. First, two-dimensional (2D) 1H nutation experiments on silicone thin cylinders in the presence of B0 field gradient generated by shim coils are used to image the spatial distribution of rf field inside the rotor. These experiments show that the rf field is asymmetrical with respect to the center of the rotor. Moreover, they show the large inhomogeneity that still remains across the sample when using spacers, and that even in this case, the rf-field close to the drive cap is decreased to ca. only 20% of its maximum value. Such 2D nutation experiment in the presence of B0 field gradient are also employed to demonstrate the migration of adamantane sample from the center of the rotor to its ends during Magic-Angle Spinning (MAS). Furthermore, 2D 1H nutation experiments on nickelocene exhibiting temperature-dependent isotropic chemical shift provides insights into the temperature distribution inside rotor. Finally three-dimensional (3D) 1H → 13C Cross-Polarization under MAS (CPMAS) nutation experiment indicates that only nuclei subject to the largest rf field contribute to the CPMAS transfer, when using rf field of constant amplitude on both channels. Such high selectivity allows the determination of accurate dipolar coupling constants in the Cross-Polarization with Variable Contact (CP-VC) experiment under fast MAS, at the expense of low sensitivity. Conversely when using ramped-amplitude on the 1H channel during the CPMAS transfer, nuclei subject to smaller rf field contributes to the transfer, which increases the sensitivity of CPMAS experiment but does not allow an accurate determination of dipolar coupling constants using CP-VC experiment.
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Affiliation(s)
- Hiroki Nagashima
- Univ. Lille, CNRS, ENSCL, UMR 8181, UCCS, Unité de Catalyse et de Chimie du Solide, 59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS, ENSCL, UMR 8181, UCCS, Unité de Catalyse et de Chimie du Solide, 59000 Lille, France
| | - Olivier Lafon
- Univ. Lille, CNRS, ENSCL, UMR 8181, UCCS, Unité de Catalyse et de Chimie du Solide, 59000 Lille, France; Institut Universitaire de France, 1, rue Descartes, 75231 Paris Cedex 05, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, ENSCL, UMR 8181, UCCS, Unité de Catalyse et de Chimie du Solide, 59000 Lille, France
| | - Piotr Paluch
- Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, 90-363 Lodz, Poland
| | - Marek J Potrzebowski
- Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies, 90-363 Lodz, Poland
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, ENSCL, UMR 8181, UCCS, Unité de Catalyse et de Chimie du Solide, 59000 Lille, France; Bruker Biospin, 34, rue de l'industrie, 67166 Wissembourg, France.
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Shen M, Wegner S, Trébosc J, Hu B, Lafon O, Amoureux JP. Minimizing the t 1-noise when using an indirect 1H high-resolution detection of unlabeled samples. Solid State Nucl Magn Reson 2017; 87:111-116. [PMID: 28688541 DOI: 10.1016/j.ssnmr.2017.06.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 06/25/2017] [Accepted: 06/26/2017] [Indexed: 06/07/2023]
Abstract
The most utilized through-space correlation 1H-{X} methods with proton indirect detection use two consecutive transfers, 1H → X and then X → 1H, with the evolution time t1 in the middle. When the X isotope is not 100% naturally abundant (NA), only the signal of the protons close to these isotopes is modulated by the 1H-X dipolar interactions. This signal is theoretically disentangled with phase-cycling from the un-modulated one. However, this separation is never perfect and it may lead to t1-noise in case of isotopes with very small NA, such as 13C or even worse 15N. One way to reduce this t1-noise is to minimize, 'purge', during t1 the un-modulated 1H magnetization before trying to suppress it with phase-cycling. We analyze experimentally several sequences following the HORROR condition, which allow purging the 1H transverse magnetization. The comparison is made at three spinning speeds, including very fast ones for 1H resolution: 27.75, 55.5 and 111 kHz. We show (i) that the efficiency of this purging process increases with the spinning speed, and (ii) that the best recoupling sequences are the two simplest ones: XY and S1 = SR212. We then compare the S/N that can be achieved with the two most used 1H-{X} 2D methods, called D-HMQC and CP-CP. The only difference in between these two methods is that the transfers are done with either two π/2-pulses on X channel (D-HMQC), or two Cross-Polarization (CP) transfers (CP-CP). The first method, D-HMQC, is very robust and should be preferred when indirectly detecting nuclei with high NA. The second method, CP-CP, (i) requires experimental precautions to limit the t1-noise, and (ii) is difficult to use with quadrupolar nuclei because the two CP transfers are then not efficient nor robust. However, CP-CP is presently the best method to indirectly detect isotopes with small NA, such as 13C and 15N.
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Affiliation(s)
- M Shen
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Materials Science, East China Normal University, Shanghai 200062, PR China
| | - S Wegner
- Bruker BioSpin GmbH, 4 Silberstreifen, 76287 Rheinstetten, Germany
| | - J Trébosc
- Univ. Lille, UMR 8181, UCCS: Unit of Catalysis and Chemistry of Solids, 59000 Lille, France
| | - B Hu
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Materials Science, East China Normal University, Shanghai 200062, PR China
| | - O Lafon
- Univ. Lille, UMR 8181, UCCS: Unit of Catalysis and Chemistry of Solids, 59000 Lille, France; Institut Universitaire de France, 1 Rue Descartes, 75231 Paris, France
| | - J P Amoureux
- Univ. Lille, UMR 8181, UCCS: Unit of Catalysis and Chemistry of Solids, 59000 Lille, France; Bruker France, 34 Rue de l'Industrie, 67166 Wissembourg, France.
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Nagashima H, Trébosc J, Calvez L, Pourpoint F, Mear F, Lafon O, Amoureux JP. 71Ga- 77Se connectivities and proximities in gallium selenide crystal and glass probed by solid-state NMR. J Magn Reson 2017; 282:71-82. [PMID: 28779594 DOI: 10.1016/j.jmr.2017.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 07/05/2017] [Accepted: 07/20/2017] [Indexed: 06/07/2023]
Abstract
We introduce two-dimensional (2D) 71Ga-77Se through-bond and through-space correlation experiments. Such correlations are achieved using (i) the J-mediated Refocused Insensitive Nuclei Enhanced by Polarization Transfer (J-RINEPT) method with 71Ga excitation and 77Se Carr-Purcell-Meiboon-Gill (CPMG) detection, as well as (ii) the J- or dipolar-mediated Hetero-nuclear Multiple-Quantum Correlation (J- or D-HMQC) schemes with 71Ga excitation and quadrupolar CPMG (QCPMG) detection. These methods are applied to the crystalline β-Ga2Se3 and the 0.2Ga2Se3-0.8GeSe2 glass. Such glass leads to a homogeneous and reproducible glass-ceramic, which is a good alternative to single-crystalline Ge and polycrystalline ZnSe materials for making lenses transparent in the IR range for thermal imaging applications. We show that 2D 71Ga-77Se correlation experiments allow resolving the 77Se signals of molecular units, which are not resolved in the 1D 77Se CPMG spectrum. Additionally, the build-up curves of the J-RINEPT and the J-HMQC experiments allow the estimate of the 71Ga-77Se J-couplings via one and three-bonds in the three-dimensional network of β-Ga2Se3. Furthermore, these build-up curves show that the one-bond 1J71Ga-77Se couplings in the 0.2Ga2Se3-0.8GeSe2 glass are similar to those measured for β-Ga2Se3. We also report 2D 71Ga Satellite Transition Magic-Angle Spinning (STMAS) spectrum of β-Ga2Se3 using QCPMG detection at high magnetic field and high Magic-Angle Spinning frequency using large radio frequency field. Such spectrum allows separating the signal of β-Ga2Se3 and that of an impurity.
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Affiliation(s)
- Hiroki Nagashima
- Univ. Lille, CNRS, UMR 8181, UCCS- Unité de Catalyse et de Chimie du Solide (UCCS), F-59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS, UMR 8181, UCCS- Unité de Catalyse et de Chimie du Solide (UCCS), F-59000 Lille, France
| | - Laurent Calvez
- Univ. Rennes, Institut des Sciences Chimiques de Rennes, F-35042 Rennes, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, UMR 8181, UCCS- Unité de Catalyse et de Chimie du Solide (UCCS), F-59000 Lille, France
| | - François Mear
- Univ. Lille, CNRS, UMR 8181, UCCS- Unité de Catalyse et de Chimie du Solide (UCCS), F-59000 Lille, France
| | - Olivier Lafon
- Univ. Lille, CNRS, UMR 8181, UCCS- Unité de Catalyse et de Chimie du Solide (UCCS), F-59000 Lille, France; Institut Universitaire de France, 1, rue Descartes, 75231 Paris Cedex 05, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, UMR 8181, UCCS- Unité de Catalyse et de Chimie du Solide (UCCS), F-59000 Lille, France; Bruker France, F-67166 Wissembourg, France.
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Giovine R, Volkringer C, Ashbrook SE, Trébosc J, McKay D, Loiseau T, Amoureux J, Lafon O, Pourpoint F. Inside Cover: Solid‐State NMR Spectroscopy Proves the Presence of Penta‐coordinated Sc Sites in MIL‐100(Sc) (Chem. Eur. J. 40/2017). Chemistry 2017. [DOI: 10.1002/chem.201701989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Raynald Giovine
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
| | - Christophe Volkringer
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
- Institut Universitaire de France 1 rue Descartes 75231 Paris Cedex 5 France
| | - Sharon E. Ashbrook
- EaStCHEM and School of ChemistryUniversity of St. Andrews, Purdie Building North Haugh St. Andrews Fife KY16 9ST UK
| | - Julien Trébosc
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
| | - David McKay
- EaStCHEM and School of ChemistryUniversity of St. Andrews, Purdie Building North Haugh St. Andrews Fife KY16 9ST UK
| | - Thierry Loiseau
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
| | - Jean‐Paul Amoureux
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
- Bruker, Biospin Wissembourg France
| | - Olivier Lafon
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
- Institut Universitaire de France 1 rue Descartes 75231 Paris Cedex 5 France
| | - Frédérique Pourpoint
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
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Nagashima H, Tricot G, Trébosc J, Lafon O, Amoureux JP, Pourpoint F. 3D correlation NMR spectrum between three distinct heteronuclei for the characterization of inorganic samples: Application on sodium alumino-phosphate materials. Solid State Nucl Magn Reson 2017; 84:164-170. [PMID: 28351540 DOI: 10.1016/j.ssnmr.2017.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 03/03/2017] [Accepted: 03/13/2017] [Indexed: 06/06/2023]
Abstract
We report here an original NMR sequence allowing the acquisition of 3D correlation NMR spectra between three distinct heteronuclei, among which two are half-integer spin quadrupolar nuclei. Furthermore, as two of them exhibit close Larmor frequency, this experiment was acquired using a standard triple-resonance probe equipped with a commercial frequency splitter. This NMR technique was tested and applied to sodium alumino-phosphate compounds with 31P as the spin-1/2 nucleus and 23Na and 27Al as the close Larmor frequencies isotopes. To the best of our knowledge, such experiment with direct 31P and indirect 27Al and 23Na detection is the first example of 3D NMR experiment in solids involving three distinct heteronuclei. This sequence has first been demonstrated on a mixture of Al(PO3)3 and NaAlP2O7 crystalline phases, for which a selective observation of NaAlP2O7 is possible through the 3D map edition. This 3D correlation experiment is then applied to characterize mixing and phase segregation in a partially devitrified glass that has been proposed as a material for the sequestration of radioactive waste. The 31P-{23Na,27Al} 3D experiment conducted on the partially devitrified glass material conclusively demonstrates that the amorphous component of the material does not contain aluminum. The as-synthesized material thus presents a poor resistance against water, which is a severe limitation for its application in the radioactive waste encapsulation domain.
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Affiliation(s)
- Hiroki Nagashima
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Grégory Tricot
- Univ. Lille, CNRS, UMR 8516 - LASIR - Laboratoire de Spectrochimie Infrarouge et Raman, F-59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France; Institut Universitaire de France, 1 rue Descartes, Paris Cedex 5 75231, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France.
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Nagashima H, Lilly Thankamony AS, Trébosc J, Pourpoint F, Lafon O, Amoureux JP. γ-Independent through-space hetero-nuclear correlation between spin-1/2 and quadrupolar nuclei in solids. Solid State Nucl Magn Reson 2017; 84:216-226. [PMID: 28666574 DOI: 10.1016/j.ssnmr.2017.06.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 06/08/2017] [Accepted: 06/10/2017] [Indexed: 06/07/2023]
Abstract
We introduce novel sequences using indirect detection to correlate quadrupolar nuclei and spin-1/2 isotopes, other than 1H and 19F. These sequences use γ-encoded symmetry-based RNnν schemes that reintroduce the space component |m| = 1 of the heteronuclear dipolar coupling. These schemes can be applied to the indirectly detected spin in Dipolar-mediated Heteronuclear Multiple-Quantum Correlation (D-HMQC) sequence or to the detected isotope in a novel sequence, named Dipolar-mediated Heteronuclear Universal-Quantum Correlation (D-HUQC). We show that the signal of these sequences using γ-encoded recoupling does not depend on the γ Euler angle relating the inter-nuclear vector between the coupled spins to the MAS rotor-fixed frame. Therefore, the transfer efficiency of these sequences is in principle higher than that of D-HMQC methods using non-γ-encoded recoupling. Furthermore, numerical simulations show that the heteronuclear correlation experiments employing γ-encoded recoupling are more robust to Chemical Shift Anisotropy (CSA) of the irradiated spin and MAS frequency fluctuations. These results are confirmed by 13C-{15N} heteronuclear correlation on glycine and 31P-27Al ones on VPI-5 and Na7(AlP2O7)4PO4. These experiments indicate that R1635 recoupling produces the highest signal-to-noise ratio in heteronuclear correlation 2D experiments when the detected spin-1/2 nuclei are subject to large CSA.
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Affiliation(s)
- Hiroki Nagashima
- Univ. Lille and Artois, ENSCL, Centrale Lille, UCCS, CNRS UMR 8181, 59000, Lille, France
| | | | - Julien Trébosc
- Univ. Lille and Artois, ENSCL, Centrale Lille, UCCS, CNRS UMR 8181, 59000, Lille, France
| | - Frédérique Pourpoint
- Univ. Lille and Artois, ENSCL, Centrale Lille, UCCS, CNRS UMR 8181, 59000, Lille, France
| | - Olivier Lafon
- Univ. Lille and Artois, ENSCL, Centrale Lille, UCCS, CNRS UMR 8181, 59000, Lille, France; IUF, Institut Universitaire de France, 75231, Paris, France
| | - Jean Paul Amoureux
- Univ. Lille and Artois, ENSCL, Centrale Lille, UCCS, CNRS UMR 8181, 59000, Lille, France; Bruker France, 34 rue de l'Industrie, 67166, Wissembourg, France.
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Giovine R, Volkringer C, Ashbrook SE, Trébosc J, McKay D, Loiseau T, Amoureux J, Lafon O, Pourpoint F. Solid‐State NMR Spectroscopy Proves the Presence of Penta‐coordinated Sc Sites in MIL‐100(Sc). Chemistry 2017; 23:9525-9534. [DOI: 10.1002/chem.201700584] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Raynald Giovine
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
| | - Christophe Volkringer
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
- Institut Universitaire de France 1 rue Descartes 75231 Paris Cedex 5 France
| | - Sharon E. Ashbrook
- EaStCHEM and School of ChemistryUniversity of St. Andrews, Purdie Building North Haugh St. Andrews Fife KY16 9ST UK
| | - Julien Trébosc
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
| | - David McKay
- EaStCHEM and School of ChemistryUniversity of St. Andrews, Purdie Building North Haugh St. Andrews Fife KY16 9ST UK
| | - Thierry Loiseau
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
| | - Jean‐Paul Amoureux
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
- Bruker, Biospin Wissembourg France
| | - Olivier Lafon
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
- Institut Universitaire de France 1 rue Descartes 75231 Paris Cedex 5 France
| | - Frédérique Pourpoint
- Univ. LilleCNRS, ENSCLCentrale Lille, Univ. Artois, UMR 8181—UCCSUnité de Catalyse et Chimie du Solide F-59000 Lille France
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Dillmann B, Dubois L, Paleczny E, Trébosc J, Amoureux JP, Pourpoint F, Lafon O. Local measure of the electromagnetic field in magnetic resonance coils: How do simulations help to disentangle the contributions of the electric and magnetic fields? Solid State Nucl Magn Reson 2017; 82-83:1-9. [PMID: 28027500 DOI: 10.1016/j.ssnmr.2016.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 11/29/2016] [Accepted: 12/04/2016] [Indexed: 06/06/2023]
Abstract
The development of probes for Nuclear Magnetic Resonance (NMR) spectroscopy of metabolites, biomolecules or materials requires the accurate determination of the radio-frequency (RF) magnetic field strength, B1, at the position of the sample since this RF-field strength is related to the signal sensitivity and the excitation bandwidth. The Ball Shift (BS) technique is a commonly employed test bench method to measure the B1 value. Nevertheless, the influence of the RF electric field, E1, on BS is often overlooked. Herein, we derive, from Maxwell equations, an analytical expression of the BS, which shows the contribution of both the electric and magnetic energies to the BS value. This equation shows that the BS allows quantifying the B1 field strength only in regions where the electric energy is small with respect to the magnetic one. The numerical simulations of electromagnetic (EM) field and energy prove that this condition is fulfilled at 100.5MHz inside the electrically balanced coil of a double-resonance 1H/X 4mm Magic Angle Spinning (MAS) probe since for that circuit, the center of the coil is an antinode for the B1 standing wave and a node for the E1 one. We also show that the simulated BS values agree well with the experimental ones. Conversely, NMR experiments show that the contribution of the electric energy to BS becomes significant when the X channel of this probe is connected to a frequency splitter. In that case, the use of BS method to estimate the B1 value is compromised.
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Affiliation(s)
- Baudouin Dillmann
- Univ. Lille, CNRS, ENSCL, UMR 8181 - UCCS - Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France.
| | - Luc Dubois
- Univ. Lille, UMR 8520 - IEMN, F-59000 Lille, France
| | | | - Julien Trébosc
- Univ. Lille, CNRS, ENSCL, UMR 8181 - UCCS - Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, ENSCL, UMR 8181 - UCCS - Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, ENSCL, UMR 8181 - UCCS - Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Olivier Lafon
- Univ. Lille, CNRS, ENSCL, UMR 8181 - UCCS - Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France; Institut Universitaire de France, 1, rue Descartes, 75231 Paris Cedex 05, France.
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Giovine R, Volkringer C, Trébosc J, Amoureux JP, Loiseau T, Lafon O, Pourpoint F. NMR crystallography to probe the breathing effect of the MIL-53(Al) metal–organic framework using solid-state NMR measurements of 13C–27Al distances. Acta Crystallogr C Struct Chem 2017; 73:176-183. [DOI: 10.1107/s2053229616017915] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 11/08/2016] [Indexed: 11/11/2022]
Abstract
The metal–organic framework MIL-53(Al) (aluminium terephthalate) exhibits a structural transition between two porous structures with large pore (lp) or narrow pore (np) configurations. This transition, called the breathing effect, is observed upon changes in temperature or external pressure, as well as with the adsorption of guest molecules, such as H2O, within the pores. We show here how these different pore openings can be detected by observing the dephasing of 13C magnetization under 13C–27Al dipolar couplings using Rotational-Echo Saturation-Pulse Double-Resonance (RESPDOR) solid-state NMR experiments with Simultaneous Frequency and Amplitude Modulation (SFAM) recoupling. These double-resonance NMR experiments between 13C and 27Al nuclei, which have close Larmor frequencies, are feasible thanks to the use of a frequency splitter. The experimental SFAM–RESPDOR signal fractions agree well with those simulated from the MIL-53(Al)-lp and -np crystal structures obtained from powder X-ray diffraction analysis. Hence, these 13C–27Al solid-state NMR experiments validate these structures and confirm their rigidity. A similar agreement is reported for the framework ligands in the as-synthesized (as) MIL-53(Al), in which the pores contain free ligands. Furthermore, in this case, 13C–{27Al} SFAM–RESPDOR experiments allow an estimation of the average distance between the free ligands and the 27Al nuclei of the framework.
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Wang Z, Jiang Y, Lafon O, Trébosc J, Duk Kim K, Stampfl C, Baiker A, Amoureux JP, Huang J. Brønsted acid sites based on penta-coordinated aluminum species. Nat Commun 2016; 7:13820. [PMID: 27976673 PMCID: PMC5172364 DOI: 10.1038/ncomms13820] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 11/03/2016] [Indexed: 01/24/2023] Open
Abstract
Zeolites and amorphous silica-alumina (ASA), which both provide Brønsted acid sites (BASs), are the most extensively used solid acid catalysts in the chemical industry. It is widely believed that BASs consist only of tetra-coordinated aluminum sites (AlIV) with bridging OH groups in zeolites or nearby silanols on ASA surfaces. Here we report the direct observation in ASA of a new type of BAS based on penta-coordinated aluminum species (AlV) by 27Al-{1H} dipolar-mediated correlation two-dimensional NMR experiments at high magnetic field under magic-angle spinning. Both BAS-AlIV and -AlV show a similar acidity to protonate probe molecular ammonia. The quantitative evaluation of 1H and 27Al sites demonstrates that BAS-AlV co-exists with BAS-AlIV rather than replaces it, which opens new avenues for strongly enhancing the acidity of these popular solid acids.
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Affiliation(s)
- Zichun Wang
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, Sydney University, Chemical Engineering Building J01, Sydney, New South Wales 2006, Australia
| | - Yijiao Jiang
- Department of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Olivier Lafon
- Univ. Lille, CNRS, UMR 8181-UCCS, Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS, UMR 8181-UCCS, Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Kyung Duk Kim
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, Sydney University, Chemical Engineering Building J01, Sydney, New South Wales 2006, Australia
| | - Catherine Stampfl
- School of Physics, Sydney University, Sydney, New South Wales 2006, Australia
| | - Alfons Baiker
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Bioscience, ETH Zürich, Hönggerberg, HCI, CH-8093 Zürich, Switzerland
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, UMR 8181-UCCS, Unité de Catalyse et de Chimie du Solide, F-59000 Lille, France
| | - Jun Huang
- Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, Sydney University, Chemical Engineering Building J01, Sydney, New South Wales 2006, Australia
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Qi G, Wang Q, Xu J, Trébosc J, Lafon O, Wang C, Amoureux JP, Deng F. Synergic Effect of Active Sites in Zinc-Modified ZSM-5 Zeolites as Revealed by High-Field Solid-State NMR Spectroscopy. Angew Chem Int Ed Engl 2016; 55:15826-15830. [DOI: 10.1002/anie.201608322] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 10/21/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Guodong Qi
- National Centre for Magnetic Resonance in Wuhan; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics; CAS Key Laboratory of Magnetic Resonance in Biological Systems; Wuhan Institute of Physics and Mathematics; Chinese Academy of Sciences; Wuhan 430071 China
| | - Qiang Wang
- National Centre for Magnetic Resonance in Wuhan; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics; CAS Key Laboratory of Magnetic Resonance in Biological Systems; Wuhan Institute of Physics and Mathematics; Chinese Academy of Sciences; Wuhan 430071 China
| | - Jun Xu
- National Centre for Magnetic Resonance in Wuhan; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics; CAS Key Laboratory of Magnetic Resonance in Biological Systems; Wuhan Institute of Physics and Mathematics; Chinese Academy of Sciences; Wuhan 430071 China
| | - Julien Trébosc
- Univ. Lille, CNRS, ENSCL, UMR 8181; Unité de Catalyse et de Chimie du Solide; 59000 Lille France
| | - Olivier Lafon
- Univ. Lille, CNRS, ENSCL, UMR 8181; Unité de Catalyse et de Chimie du Solide; 59000 Lille France
| | - Chao Wang
- National Centre for Magnetic Resonance in Wuhan; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics; CAS Key Laboratory of Magnetic Resonance in Biological Systems; Wuhan Institute of Physics and Mathematics; Chinese Academy of Sciences; Wuhan 430071 China
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, ENSCL, UMR 8181; Unité de Catalyse et de Chimie du Solide; 59000 Lille France
- East China Normal University; Shanghai 200062 China
| | - Feng Deng
- National Centre for Magnetic Resonance in Wuhan; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics; CAS Key Laboratory of Magnetic Resonance in Biological Systems; Wuhan Institute of Physics and Mathematics; Chinese Academy of Sciences; Wuhan 430071 China
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