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Chen J, Wang F, Wen Y, Tang W, Peng L. Emerging Applications of 17O Solid-State NMR Spectroscopy for Catalytic Oxides. ACS Catal 2023. [DOI: 10.1021/acscatal.2c06267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Affiliation(s)
- Junchao Chen
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Fang Wang
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yujie Wen
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Weiping Tang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Luming Peng
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Nanjing University, Nanjing 210093, China
- Frontiers Science Center for Critical Earth Material Cycling (FSC-CEMaC), Nanjing University, Nanjing, Jiangsu 210023, China
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2
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Liang L, Shang C, Chen K, Hou G. Supercycled R-symmetry sequences for robust heteronuclear polarization transfer in solid-state NMR. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2022; 344:107310. [PMID: 36334491 DOI: 10.1016/j.jmr.2022.107310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/09/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Herein, we introduce supercycle of R-symmetry sequences (SR-sequences) and incomplete supercycle schemes of R-symmetry sequences (iSR-I- and iSR-II-sequences) to improve the robustness of PRESTO for heteronuclear polarization transfer in MAS NMR. The constructions of SR- and iSR-I/II- sequences are based on the different phase-inverted supercycles of R-symmetry sequences, and such supercycles can suppress the influence of CSA, resonance offset and RF mismatch when incorporated into the PRESTO method. Moreover, the SR- and iSR-II-sequences are more efficient in suppressing the interference of homonuclear dipolar coupling. The improved robustness of SR-, iSR-I- and iSR-II-PRESTO over the original R-PRESTO has been verified by numerical simulations and NMR experiments on NH4H2PO4 and gamma-alumina at fast MAS conditions. It is also important to note that the SR- and iSR-II-PRESTO can greatly lengthen the transverse relaxation times and lead to much higher polarization transfer efficiency compared to R-PRESTO, thanks to their superior tolerance to RF inhomogeneity and homonuclear dipolar coupling.
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Affiliation(s)
- Lixin Liang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Shang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kuizhi Chen
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, China
| | - Guangjin Hou
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, China.
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3
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Elliott SJ, Duff BB, Taylor-Hughes AR, Cheney DJ, Corley JP, Paul S, Brookfield A, Pawsey S, Gajan D, Aspinall HC, Lesage A, Blanc F. Off-the-Shelf Gd(NO 3) 3 as an Efficient High-Spin Metal Ion Polarizing Agent for Magic Angle Spinning Dynamic Nuclear Polarization. J Phys Chem B 2022; 126:6281-6289. [PMID: 35973071 PMCID: PMC9421651 DOI: 10.1021/acs.jpcb.2c04184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Magic angle spinning nuclear magnetic resonance spectroscopy experiments are widely employed in the characterization of solid media. The approach is incredibly versatile but deleteriously suffers from low sensitivity, which may be alleviated by adopting dynamic nuclear polarization methods, resulting in large signal enhancements. Paramagnetic metal ions such as Gd3+ have recently shown promising results as polarizing agents for 1H, 13C, and 15N nuclear spins. We demonstrate that the widely available and inexpensive chemical agent Gd(NO3)3 achieves significant signal enhancements for the 13C and 15N nuclear sites of [2-13C,15N]glycine at 9.4 T and ∼105 K. Analysis of the signal enhancement profiles at two magnetic fields, in conjunction with electron paramagnetic resonance data, reveals the solid effect to be the dominant signal enhancement mechanism. The signal amplification obtained paves the way for efficient dynamic nuclear polarization without the need for challenging synthesis of Gd3+ polarizing agents.
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Affiliation(s)
- Stuart J Elliott
- Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Benjamin B Duff
- Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom.,Stephenson Institute for Renewable Energy, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | | | - Daniel J Cheney
- Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - John P Corley
- Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Subhradip Paul
- DNP MAS NMR Facility, Sir Peter Mansfield Imaging Centre, University of Nottingham, Nottingham NG7 3RD, United Kingdom
| | - Adam Brookfield
- Department of Chemistry and Photon Science Institute, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Shane Pawsey
- Bruker BioSpin Corporation, Billerica, Massachusetts 01821, United States
| | - David Gajan
- Université de Lyon, Centre de Résonance Magnétique Nucléaire à Très Hauts Champs (UMR 5082, CNRS/ENS Lyon/UCBL), 69100 Villeurbanne, France
| | - Helen C Aspinall
- Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Anne Lesage
- Université de Lyon, Centre de Résonance Magnétique Nucléaire à Très Hauts Champs (UMR 5082, CNRS/ENS Lyon/UCBL), 69100 Villeurbanne, France
| | - Frédéric Blanc
- Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom.,Stephenson Institute for Renewable Energy, University of Liverpool, Liverpool L69 7ZD, United Kingdom
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4
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Hung I, Keeler EG, Mao W, Gor'kov PL, Griffin RG, Gan Z. Residue-Specific High-Resolution 17O Solid-State Nuclear Magnetic Resonance of Peptides: Multidimensional Indirect 1H Detection and Magic-Angle Spinning. J Phys Chem Lett 2022; 13:6549-6558. [PMID: 35830592 PMCID: PMC9888599 DOI: 10.1021/acs.jpclett.2c01777] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Oxygen is an integral component of proteins but remains sparsely studied because its only NMR active isotope, 17O, has low sensitivity, low resolution, and large quadrupolar couplings. These issues are addressed here with efficient isotopic labeling, high magnetic fields, fast sample spinning, and 1H detection in conjunction with multidimensional experiments to observe oxygen sites specific to each amino acid residue. Notably, cross-polarization at high sample spinning frequencies provides efficient 13C ↔ 17O polarization transfer. The use of 17O for initial polarization is found to provide better sensitivity per unit time compared to 1H. Sharp isotropic 17O peaks are obtained by using a low-power multiple-quantum sequence, which in turn allows extraction of quadrupolar parameters for each oxygen site. Finally, the potential to determine sequential assignments and long-range distance restraints is demonstrated by using 3D 1H/13C/17O experiments, suggesting that such methods can become an essential tool for biomolecular structure determination.
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Affiliation(s)
- Ivan Hung
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, United States
| | - Eric G Keeler
- Department of Chemistry and Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Wenping Mao
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, United States
| | - Peter L Gor'kov
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, United States
| | - Robert G Griffin
- Department of Chemistry and Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Zhehong Gan
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, Florida 32310, United States
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5
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Shen J, Terskikh V, Struppe J, Hassan A, Monette M, Hung I, Gan Z, Brinkmann A, Wu G. Solid-state 17O NMR study of α-d-glucose: exploring new frontiers in isotopic labeling, sensitivity enhancement, and NMR crystallography. Chem Sci 2022; 13:2591-2603. [PMID: 35340864 PMCID: PMC8890099 DOI: 10.1039/d1sc06060k] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/31/2021] [Indexed: 01/03/2023] Open
Abstract
We report the first “total synthesis” of 17O-labeled d-glucose and its solid-state 17O NMR characterization with unprecedented sensitivity and resolution.
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Affiliation(s)
- Jiahui Shen
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
| | - Victor Terskikh
- Metrology, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Jochem Struppe
- Bruker Biospin Corporation, 15 Fortune Drive, Billerica, MA 01821, USA
| | - Alia Hassan
- Bruker Switzerland AG, Fällanden, Switzerland
| | - Martine Monette
- Bruker Biospin Ltd., 2800 High Point Drive, Suite 206, Milton, Ontario L9T 6P4, Canada
| | - 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
| | - Andreas Brinkmann
- Metrology, National Research Council Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Gang Wu
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
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Kobayashi T, Pruski M. Indirectly Detected DNP-Enhanced 17 O NMR Spectroscopy: Observation of Non-Protonated Near-Surface Oxygen at Naturally Abundant Silica and Silica-Alumina. Chemphyschem 2021; 22:1441-1445. [PMID: 34019318 DOI: 10.1002/cphc.202100290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/20/2021] [Indexed: 11/07/2022]
Abstract
Recent studies have shown that dynamic nuclear polarization (DNP) can be used to detect 17 O solid-state NMR spectra of naturally abundant samples within a reasonable experimental time. Observations using indirect DNP, which relies on 1 H mediation in transferring electron hyperpolarization to 17 O, are currently limited mostly to hydroxyls. Direct DNP schemes can hyperpolarize non-protonated oxygen near the radicals; however, they generally offer much lower signal enhancements. In this study, we demonstrate the detection of signals from non-protonated 17 O in materials containing silicon. The sensitivity boost that made the experiment possible originates from three sources: indirect DNP excitation of 29 Si via protons, indirect detection of 17 O through 29 Si nuclei using two-dimensional 29 Si{17 O} D-HMQC, and Carr-Purcell-Meiboom-Gill refocusing of 29 Si magnetization during acquisition. This 29 Si-detected scheme enabled, for the first time, 2D 17 O-29 Si heteronuclear correlation spectroscopy in mesoporous silica and silica-alumina surfaces at natural abundance. In contrast to the silanols showing motion-averaged 17 O signals, the framework oxygens exhibit unperturbed powder patterns as unambiguous fingerprints of surface sites. Along with hydroxyl oxygens, detection of these moieties will help in gaining more atomistic-scale insights into surface chemistry.
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Affiliation(s)
- Takeshi Kobayashi
- U.S. DOE Ames Laboratory, Iowa State University, Ames, Iowa 50011-3020, United States
| | - Marek Pruski
- U.S. DOE Ames Laboratory, Iowa State University, Ames, Iowa 50011-3020, United States
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Matsuki Y, Kobayashi T, Fukazawa J, Perras FA, Pruski M, Fujiwara T. Efficiency analysis of helium-cooled MAS DNP: case studies of surface-modified nanoparticles and homogeneous small-molecule solutions. Phys Chem Chem Phys 2021; 23:4919-4926. [PMID: 33620367 DOI: 10.1039/d0cp05658h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite the growing number of successful applications of dynamic nuclear polarization (DNP)-enhanced magic-angle spinning (MAS) NMR in structural biology and materials science, the nuclear polarizations achieved by current MAS DNP instrumentation are still considerably lower than the theoretical maximum. The method could be significantly strengthened if experiments were performed at temperatures much lower than those currently widely used (∼100 K). Recently, the prospects of helium (He)-cooled MAS DNP have been increased with the instrumental developments in MAS technology that uses cold helium gas for sample cooling. Despite the additional gains in sensitivity that have been observed with He-cooled MAS DNP, the performance of the technique has not been evaluated in the case of surfaces and interfaces that benefit the most from DNP. Herein, we studied the efficiency of DNP at temperatures between ∼30 K and ∼100 K for organically functionalized silica material and a homogeneous solution of small organic molecules at a magnetic field B0 = 16.4 T. We recorded the changes in signal enhancement, paramagnet-induced quenching and depolarization effects, DNP build-up rate, and Boltzmann polarization. For these samples, the increases in MAS-induced depolarization and DNP build-up times at around 30 K were not as severe as anticipated. In the case of the surface species, we determined that MAS DNP at 30 K provided ∼10 times higher sensitivity than MAS DNP at 90 K, which corresponds to the acceleration of experiments by multiplicative factors of up to 100.
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Affiliation(s)
- Yoh Matsuki
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan and Center for Quantum Information and Quantum Biology, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Takeshi Kobayashi
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011-3020, USA
| | - Jun Fukazawa
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Frédéric A Perras
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011-3020, USA
| | - Marek Pruski
- Ames Laboratory, U.S. Department of Energy, Ames, Iowa 50011-3020, USA and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3020, USA
| | - Toshimichi Fujiwara
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan and Center for Quantum Information and Quantum Biology, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Toyonaka, Osaka 560-0043, Japan
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8
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Carnevale D, Mouchaham G, Wang S, Baudin M, Serre C, Bodenhausen G, Abergel D. Natural abundance oxygen-17 solid-state NMR of metal organic frameworks enhanced by dynamic nuclear polarization. Phys Chem Chem Phys 2021; 23:2245-2251. [PMID: 33443274 DOI: 10.1039/d0cp06064j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The 17O resonances of zirconium-oxo clusters that can be found in porous Zr carboxylate metal-organic frameworks (MOFs) have been investigated by magic-angle spinning (MAS) NMR spectroscopy enhanced by dynamic nuclear polarization (DNP). High-resolution 17O spectra at 0.037% natural abundance could be obtained in 48 hours, thanks to DNP enhancement of the 1H polarization by factors ε(1H) = Swith/Swithout = 28, followed by 1H → 17O cross-polarization, allowing a saving in experimental time by a factor of ca. 800. The distinct 17O sites from the oxo-clusters can be resolved at 18.8 T. Their assignment is supported by density functional theory (DFT) calculations of chemical shifts and quadrupolar parameters. Protonation of 17O sites seems to be leading to large characteristic shifts. Hence, natural abundance 17O NMR spectra of diamagnetic MOFs can thus be used to probe and characterize the local environment of different 17O sites on an atomic scale.
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Affiliation(s)
- Diego Carnevale
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France.
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9
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Klein BA, Tkachuk DG, Terskikh VV, Michaelis VK. Expanding the NMR toolkit for biological solids: oxygen-17 enriched Fmoc-amino acids. NEW J CHEM 2021. [DOI: 10.1039/d1nj02847b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report the solid-state 17O NMR parameters for five previously uncharacterized N-α-fluoren-9-yl-methoxycarbonyl-O-t-butyl (Fmoc) protected amino acids.
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Tran NT, Mentink-Vigier F, Long JR. Dynamic Nuclear Polarization of Biomembrane Assemblies. Biomolecules 2020; 10:E1246. [PMID: 32867275 PMCID: PMC7565305 DOI: 10.3390/biom10091246] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 01/02/2023] Open
Abstract
While atomic scale structural and dynamic information are hallmarks of nuclear magnetic resonance (NMR) methodologies, sensitivity is a fundamental limitation in NMR studies. Fully exploiting NMR capabilities to study membrane proteins is further hampered by their dilution within biological membranes. Recent developments in dynamic nuclear polarization (DNP), which can transfer the relatively high polarization of unpaired electrons to nuclear spins, show promise for overcoming the sensitivity bottleneck and enabling NMR characterization of membrane proteins under native-like conditions. Here we discuss fundamental aspects of DNP-enhanced solid-state NMR spectroscopy, experimental details relevant to the study of lipid assemblies and incorporated proteins, and sensitivity gains which can be realized in biomembrane-based samples. We also present unique insights which can be gained from DNP measurements and prospects for further development of the technique for elucidating structures and orientations of membrane proteins in native lipid environments.
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Affiliation(s)
- Nhi T. Tran
- Department of Chemistry, University of Florida, Gainesville, FL 32611, USA;
| | - Frédéric Mentink-Vigier
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA;
| | - Joanna R. Long
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA;
- Department of Biochemistry & Molecular Biology and McKnight Brain Institute, University of Florida, Gainesville, FL 32610, USA
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11
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Martins V, Xu J, Wang X, Chen K, Hung I, Gan Z, Gervais C, Bonhomme C, Jiang S, Zheng A, Lucier BEG, Huang Y. Higher Magnetic Fields, Finer MOF Structural Information: 17O Solid-State NMR at 35.2 T. J Am Chem Soc 2020; 142:14877-14889. [PMID: 32786791 DOI: 10.1021/jacs.0c02810] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The spectroscopic study of oxygen, a vital element in materials, physical, and life sciences, is of tremendous fundamental and practical importance. 17O solid-state NMR (SSNMR) spectroscopy has evolved into an ideal site-specific characterization tool, furnishing valuable information on the local geometric and bonding environments about chemically distinct and, in some favorable cases, crystallographically inequivalent oxygen sites. However, 17O is a challenging nucleus to study via SSNMR, as it suffers from low sensitivity and resolution, owing to the quadrupolar interaction and low 17O natural abundance. Herein, we report a significant advance in 17O SSNMR spectroscopy. 17O isotopic enrichment and the use of an ultrahigh 35.2 T magnetic field have unlocked the identification of many inequivalent carboxylate oxygen sites in the as-made and activated phases of the metal-organic framework (MOF) α-Mg3(HCOO)6. The subtle 17O spectral differences between the as-made and activated phases yield detailed information about host-guest interactions, including insight into nonconventional O···H-C hydrogen bonding. Such weak interactions often play key roles in the applications of MOFs, such as gas adsorption and biomedicine, and are usually difficult to study via other characterization routes. The power of performing 17O SSNMR experiments at an ultrahigh magnetic field of 35.2 T for MOF characterization is further demonstrated by examining activation of the MIL-53(Al) MOF. The sensitivity and resolution enhanced at 35.2 T allows partially and fully activated MIL-53(Al) to be unambiguously distinguished and also permits several oxygen environments in the partially activated phase to be tentatively identified. This demonstration of the very high resolution of 17O SSNMR recorded at the highest magnetic field accessible to chemists to date illustrates how a broad variety of scientists can now study oxygen-containing materials and obtain previously inaccessible fine structural information.
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Affiliation(s)
- Vinicius Martins
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada
| | - Jun Xu
- Center for Rare Earth and Inorganic Functional Materials, Tianjin Key Lab for Rare Earth Materials and Applications, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin 300350, People's Republic of China
| | - Xiaoling Wang
- National High Magnetic Field Laboratory (NHMFL), 1800 East Paul Dirac Dr., Tallahassee, Florida 32310, United States
| | - Kuizhi Chen
- National High Magnetic Field Laboratory (NHMFL), 1800 East Paul Dirac Dr., Tallahassee, Florida 32310, United States
| | - Ivan Hung
- National High Magnetic Field Laboratory (NHMFL), 1800 East Paul Dirac Dr., Tallahassee, Florida 32310, United States
| | - Zhehong Gan
- National High Magnetic Field Laboratory (NHMFL), 1800 East Paul Dirac Dr., Tallahassee, Florida 32310, United States
| | - Christel Gervais
- Sorbonne Université, CNRS, UMR 7574, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, F-75005 Paris, France
| | - Christian Bonhomme
- Sorbonne Université, CNRS, UMR 7574, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, F-75005 Paris, France
| | - Shijia Jiang
- Center for Rare Earth and Inorganic Functional Materials, Tianjin Key Lab for Rare Earth Materials and Applications, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin 300350, People's Republic of China
| | - Anmin Zheng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, People's Republic of China
| | - Bryan E G Lucier
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada
| | - Yining Huang
- Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 5B7, Canada
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Jardón-Álvarez D, Reuveni G, Harchol A, Leskes M. Enabling Natural Abundance 17O Solid-State NMR by Direct Polarization from Paramagnetic Metal Ions. J Phys Chem Lett 2020; 11:5439-5445. [PMID: 32551646 PMCID: PMC7370305 DOI: 10.1021/acs.jpclett.0c01527] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 06/17/2020] [Indexed: 05/18/2023]
Abstract
Dynamic nuclear polarization (DNP) significantly enhances the sensitivity of nuclear magnetic resonance (NMR), increasing its applications and the quality of NMR spectroscopy as a characterization tool for materials. Efficient spin diffusion among the nuclear spins is considered to be essential for spreading the hyperpolarization throughout the sample, enabling large DNP enhancements. This scenario mostly limits the polarization enhancement of low-sensitivity nuclei in inorganic materials to the surface sites when the polarization source is an exogenous radical. In metal-ion-based DNP, the polarization agents are distributed in the bulk sample and act as a source of both relaxation and polarization enhancement. We have found that as long as the polarization agent is the main source of relaxation, the enhancement does not depend on the distance between the nucleus and dopant. As a consequence, the requirement of efficient spin diffusion is lifted, and the entire sample can be directly polarized. We exploit this finding to measure high-quality NMR spectra of 17O in the electrode material Li4Ti5O12 doped with Fe(III) despite its low abundance and long relaxation time.
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Gervais C, Bonhomme C, Laurencin D. Recent directions in the solid-state NMR study of synthetic and natural calcium phosphates. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2020; 107:101663. [PMID: 32325374 DOI: 10.1016/j.ssnmr.2020.101663] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/29/2020] [Accepted: 04/02/2020] [Indexed: 06/11/2023]
Abstract
Materials containing a calcium phosphate component have been the subject of much interest to NMR spectroscopists, especially in view of understanding the structure and properties of mineralized tissues like bone and teeth, and of developing synthetic biomaterials for bone regeneration. Here, we present a selection of recent developments in their structural characterization using advanced solid state NMR experiments, highlighting the level of insight which can now be accessed.
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Affiliation(s)
- Christel Gervais
- Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR 7574, Sorbonne Université, CNRS, 75005, Paris, France
| | - Christian Bonhomme
- Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR 7574, Sorbonne Université, CNRS, 75005, Paris, France
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14
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Wu G. 17O NMR studies of organic and biological molecules in aqueous solution and in the solid state. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2019; 114-115:135-191. [PMID: 31779879 DOI: 10.1016/j.pnmrs.2019.06.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/11/2019] [Accepted: 06/11/2019] [Indexed: 06/10/2023]
Abstract
This review describes the latest developments in the field of 17O NMR spectroscopy of organic and biological molecules both in aqueous solution and in the solid state. In the first part of the review, a general theoretical description of the nuclear quadrupole relaxation process in isotropic liquids is presented at a mathematical level suitable for non-specialists. In addition to the first-order quadrupole interaction, the theory also includes additional relaxation mechanisms such as the second-order quadrupole interaction and its cross correlation with shielding anisotropy. This complete theoretical treatment allows one to assess the transverse relaxation rate (thus the line width) of NMR signals from half-integer quadrupolar nuclei in solution over the entire range of motion. On the basis of this theoretical framework, we discuss general features of quadrupole-central-transition (QCT) NMR, which is a particularly powerful method of studying biomolecules in the slow motion regime. Then we review recent advances in 17O QCT NMR studies of biological macromolecules in aqueous solution. The second part of the review is concerned with solid-state 17O NMR studies of organic and biological molecules. As a sequel to the previous review on the same subject [G. Wu, Prog. Nucl. Magn. Reson. Spectrosc. 52 (2008) 118-169], the current review provides a complete coverage of the literature published since 2008 in this area.
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Affiliation(s)
- Gang Wu
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada.
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15
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Rankin AGM, Trébosc J, Pourpoint F, Amoureux JP, Lafon O. Recent developments in MAS DNP-NMR of materials. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2019; 101:116-143. [PMID: 31189121 DOI: 10.1016/j.ssnmr.2019.05.009] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [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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16
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Chmelka BF. Materializing opportunities for NMR of solids. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2019; 306:91-97. [PMID: 31377152 DOI: 10.1016/j.jmr.2019.07.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/20/2019] [Accepted: 07/20/2019] [Indexed: 05/04/2023]
Abstract
Advancements in sensitivity and resolution of NMR of solids are opening a bonanza of fundamental and technological opportunities in materials science. Many of these are at the boundaries of related disciplines that provide creative inputs to motivate the development of new methodologies and possibilities for new applications. As Boltzmann limitations are surmounted by dynamic-nuclear-polarization- and laser-enhanced hyperpolarization techniques, the correlative benefits of multidimensional NMR are becoming more and more impactful. Nevertheless, there are limits, and the atomic-level information provided by solid-state NMR will be most useful in combination with state-of-the-art diffraction, microscopy, computational, and materials synthesis methods. Collectively these can be expected to lead to design criteria that will promote discovery of new materials, lead to novel or improved material properties, catalyze new applications, and motivate further methodological advancements.
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Affiliation(s)
- Bradley F Chmelka
- Department of Chemical Engineering, University of California, Santa Barbara, CA 93106, USA.
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17
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Brownbill NJ, Lee D, De Paëpe G, Blanc F. Detection of the Surface of Crystalline Y 2O 3 Using Direct 89Y Dynamic Nuclear Polarization. J Phys Chem Lett 2019; 10:3501-3508. [PMID: 31150249 PMCID: PMC6589743 DOI: 10.1021/acs.jpclett.9b01185] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 05/31/2019] [Indexed: 05/29/2023]
Abstract
Nuclei with low gyromagnetic ratio (γ) present a serious sensitivity challenge for nulear magnetic resonance (NMR) spectroscopy. Recently, dynamic nuclear polarization (DNP) has shown great promise in overcoming this hurdle by indirect hyperpolarization (via 1H) of these low-γ nuclei. Here we show that at a magnetic field of 9.4 T and cryogenic temperature of about 110 K direct DNP of 89Y in a frozen solution of Y(NO3)3 can offer signal enhancements greater than 80 times using exogeneous trityl OX063 monoradical by satisfying the cross effect magic angle spinning (MAS) DNP mechanism. The large signal enhancement achieved permits 89Y NMR spectra of Y2O3 and Gd2O3-added Y2O3 materials to be obtained quickly (∼30 min), revealing a range of surface yttrium hydroxyl groups in addition to the two octahedral yttrium signals of the core. The results open up promises for the observation of low gyromagnetic ratio nuclei and the detection of corresponding surface and (sub-)surface sites.
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Affiliation(s)
- Nick J. Brownbill
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United
Kingdom
| | - Daniel Lee
- Univ.
Grenoble Alpes, CEA, IRIG, MEM, F-38000 Grenoble, France
| | - Gaël De Paëpe
- Univ.
Grenoble Alpes, CEA, IRIG, MEM, F-38000 Grenoble, France
| | - Frédéric Blanc
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United
Kingdom
- Stephenson
Institute for Renewable Energy, University
of Liverpool, Crown Street, Liverpool L69 7ZF, United Kingdom
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18
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Viger‐Gravel J, Avalos CE, Kubicki DJ, Gajan D, Lelli M, Ouari O, Lesage A, Emsley L. 19
F Magic Angle Spinning Dynamic Nuclear Polarization Enhanced NMR Spectroscopy. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jasmine Viger‐Gravel
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Claudia E. Avalos
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Dominik J. Kubicki
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - David Gajan
- Université de LyonInstitut des Sciences Analytiques (UMR 5280 CNRS/UCBL/ENS Lyon)Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Moreno Lelli
- Center of Magnetic Resonance (CERM)University of Florence Via Luigi Sacconi 6 50019 Sesto Fiorentino Italy
- Department of Chemistry “Ugo Schiff”University of Florence Via della Lastruccia 3 50019 Sesto Fiorentino Italy
| | - Olivier Ouari
- Aix Marseille UnivCNRSICR UMR 7273, 13397 13013 Marseille France
| | - Anne Lesage
- Université de LyonInstitut des Sciences Analytiques (UMR 5280 CNRS/UCBL/ENS Lyon)Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Lyndon Emsley
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
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19
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Viger‐Gravel J, Avalos CE, Kubicki DJ, Gajan D, Lelli M, Ouari O, Lesage A, Emsley L. 19
F Magic Angle Spinning Dynamic Nuclear Polarization Enhanced NMR Spectroscopy. Angew Chem Int Ed Engl 2019; 58:7249-7253. [DOI: 10.1002/anie.201814416] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 04/02/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Jasmine Viger‐Gravel
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Claudia E. Avalos
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Dominik J. Kubicki
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - David Gajan
- Université de LyonInstitut des Sciences Analytiques (UMR 5280 CNRS/UCBL/ENS Lyon)Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Moreno Lelli
- Center of Magnetic Resonance (CERM)University of Florence Via Luigi Sacconi 6 50019 Sesto Fiorentino Italy
- Department of Chemistry “Ugo Schiff”University of Florence Via della Lastruccia 3 50019 Sesto Fiorentino Italy
| | - Olivier Ouari
- Aix Marseille UnivCNRSICR UMR 7273, 13397 13013 Marseille France
| | - Anne Lesage
- Université de LyonInstitut des Sciences Analytiques (UMR 5280 CNRS/UCBL/ENS Lyon)Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Lyndon Emsley
- Institut des Sciences et Ingénierie ChimiquesEcole Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
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20
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Perras FA, Wang Z, Kobayashi T, Baiker A, Huang J, Pruski M. Shedding light on the atomic-scale structure of amorphous silica–alumina and its Brønsted acid sites. Phys Chem Chem Phys 2019; 21:19529-19537. [DOI: 10.1039/c9cp04099d] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Advanced solid-state NMR methods, using dynamic nuclear polarization (DNP), are applied to probe the atomic-scale bulk structure of amorphous silica–alumina catalysts prepared by flame-spray pyrolysis, and the structure of their Brønsted acid sites.
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Affiliation(s)
| | - Zichun Wang
- Laboratory for Catalysis Engineering
- School of Chemical and Biomolecular Engineering & Sydney Nano Institute
- University of Sydney
- Sydney
- Australia
| | | | - Alfons Baiker
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Bioscience
- ETH Zürich
- HCI
- Switzerland
| | - Jun Huang
- Laboratory for Catalysis Engineering
- School of Chemical and Biomolecular Engineering & Sydney Nano Institute
- University of Sydney
- Sydney
- Australia
| | - Marek Pruski
- US DOE
- Ames Laboratory
- Ames
- USA
- Department of Chemistry
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21
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Carnahan SL, Lampkin BJ, Naik P, Hanrahan MP, Slowing II, VanVeller B, Wu G, Rossini AJ. Probing O–H Bonding through Proton Detected 1H–17O Double Resonance Solid-State NMR Spectroscopy. J Am Chem Soc 2018; 141:441-450. [DOI: 10.1021/jacs.8b10878] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Scott L. Carnahan
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- U.S. DOE Ames Laboratory, Ames, Iowa 50011, United States
| | - Bryan J. Lampkin
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Pranjali Naik
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- U.S. DOE Ames Laboratory, Ames, Iowa 50011, United States
| | - Michael P. Hanrahan
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- U.S. DOE Ames Laboratory, Ames, Iowa 50011, United States
| | - Igor I. Slowing
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- U.S. DOE Ames Laboratory, Ames, Iowa 50011, United States
| | - Brett VanVeller
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Gang Wu
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Aaron J. Rossini
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- U.S. DOE Ames Laboratory, Ames, Iowa 50011, United States
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22
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Xiao D, Xu S, Brownbill NJ, Paul S, Chen LH, Pawsey S, Aussenac F, Su BL, Han X, Bao X, Liu Z, Blanc F. Fast detection and structural identification of carbocations on zeolites by dynamic nuclear polarization enhanced solid-state NMR. Chem Sci 2018; 9:8184-8193. [PMID: 30568769 PMCID: PMC6254210 DOI: 10.1039/c8sc03848a] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 10/02/2018] [Indexed: 12/20/2022] Open
Abstract
Acidic zeolites are porous aluminosilicates used in a wide range of industrial processes such as adsorption and catalysis. The formation of carbocation intermediates plays a key role in reactivity, selectivity and deactivation in heterogeneous catalytic processes. However, the observation and determination of carbocations remain a significant challenge in heterogeneous catalysis due to the lack of selective techniques of sufficient sensitivity to detect their low concentrations. Here, we combine 13C isotopic enrichment and efficient dynamic nuclear polarization magic angle spinning nuclear magnetic resonance spectroscopy to detect carbocations in zeolites. We use two dimensional 13C-13C through-bond correlations to establish their structures and 29Si-13C through-space experiments to quantitatively probe the interaction between multiple surface sites of the zeolites and the confined hydrocarbon pool species. We show that a range of various membered ring carbocations are intermediates in the methanol to hydrocarbons reaction catalysed by different microstructural β-zeolites and highlight that different reaction routes for the formation of both targeted hydrocarbon products and coke exist. These species have strong van der Waals interaction with the zeolite framework demonstrating that their accumulation in the channels of the zeolites leads to deactivation. These results enable understanding of deactivation pathways and open up opportunities for the design of catalysts with improved performances.
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Affiliation(s)
- Dong Xiao
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
- Department of Chemistry , University of Liverpool , Crown Street , Liverpool , L69 7ZD , UK .
| | - Shutao Xu
- National Engineering Laboratory for Methanol to Olefins , Dalian National Laboratory for Clean Energy , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , China
| | - Nick J Brownbill
- Department of Chemistry , University of Liverpool , Crown Street , Liverpool , L69 7ZD , UK .
| | - Subhradip Paul
- DNP MAS NMR Facility , Sir Peter Mansfield Imaging Centre , University of Nottingham , Nottingham NG7 2RD , UK
| | - Li-Hua Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , 122 Luoshi Road , 430070 , Wuhan , China
| | - Shane Pawsey
- Bruker BioSpin Corporation , 15 Fortune Drive , Billerica , Massachusetts 01821 , USA
| | - Fabien Aussenac
- Bruker BioSpin , 34 rue de I'Industrie BP 10002 , 67166 Wissembourg Cedex , France
| | - Bao-Lian Su
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , 122 Luoshi Road , 430070 , Wuhan , China
- CMI (Laboratory of Inorganic Materials Chemistry) , University of Namur , 61 rue de Bruxelles , B-5000 Namur , Belgium
| | - Xiuwen Han
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
| | - Xinhe Bao
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
| | - Zhongmin Liu
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
- National Engineering Laboratory for Methanol to Olefins , Dalian National Laboratory for Clean Energy , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , China
| | - Frédéric Blanc
- Department of Chemistry , University of Liverpool , Crown Street , Liverpool , L69 7ZD , UK .
- Stephenson Institute for Renewable Energy , University of Liverpool , Crown Street , Liverpool L69 7ZD , UK
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23
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Rossini AJ. Materials Characterization by Dynamic Nuclear Polarization-Enhanced Solid-State NMR Spectroscopy. J Phys Chem Lett 2018; 9:5150-5159. [PMID: 30107121 DOI: 10.1021/acs.jpclett.8b01891] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
High-resolution solid-state NMR spectroscopy is a powerful tool for the study of organic and inorganic materials because it can directly probe the symmetry and structure at nuclear sites, the connectivity/bonding of atoms and precisely measure interatomic distances. However, NMR spectroscopy is hampered by intrinsically poor sensitivity; consequently, the application of NMR spectroscopy to many solid materials is often infeasible. High-field dynamic nuclear polarization (DNP) has emerged as a technique to routinely enhance the sensitivity of solid-state NMR experiments by 1-3 orders of magnitude. This Perspective gives a general overview of how DNP-enhanced solid-state NMR spectroscopy can be applied to a variety of inorganic and organic materials. DNP-enhanced solid-state NMR experiments provide unique insights into the molecular structure, which makes it possible to form structure-activity relationships that ultimately assist in the rational design and improvement of materials.
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Affiliation(s)
- Aaron J Rossini
- Department of Chemistry , Iowa State University , Ames , Iowa 50011 , United States
- U.S. DOE Ames Laboratory , Ames , Iowa 50011 , United States
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24
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Mentink-Vigier F, Marin-Montesinos I, Jagtap AP, Halbritter T, van Tol J, Hediger S, Lee D, Sigurdsson ST, De Paëpe G. Computationally Assisted Design of Polarizing Agents for Dynamic Nuclear Polarization Enhanced NMR: The AsymPol Family. J Am Chem Soc 2018; 140:11013-11019. [PMID: 30095255 PMCID: PMC6145599 DOI: 10.1021/jacs.8b04911] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Indexed: 12/11/2022]
Abstract
We introduce a new family of highly efficient polarizing agents for dynamic nuclear polarization (DNP)-enhanced nuclear magnetic resonance (NMR) applications, composed of asymmetric bis-nitroxides, in which a piperidine-based radical and a pyrrolinoxyl or a proxyl radical are linked together. The design of the AsymPol family was guided by the use of advanced simulations that allow computation of the impact of the radical structure on DNP efficiency. These simulations suggested the use of a relatively short linker with the intention to generate a sizable intramolecular electron dipolar coupling/ J-exchange interaction, while avoiding parallel nitroxide orientations. The characteristics of AsymPol were further tuned, for instance with the addition of a conjugated carbon-carbon double bond in the 5-membered ring to improve the rigidity and provide a favorable relative orientation, the replacement of methyls by spirocyclohexanolyl groups to slow the electron spin relaxation, and the introduction of phosphate groups to yield highly water-soluble dopants. An in-depth experimental and theoretical study for two members of the family, AsymPol and AsymPolPOK, is presented here. We report substantial sensitivity gains at both 9.4 and 18.8 T. The robust efficiency of this new family is further demonstrated through high-resolution surface characterization of an important industrial catalyst using fast sample spinning at 18.8 T. This work highlights a new direction for polarizing agent design and the critical importance of computations in this process.
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Affiliation(s)
- Frédéric Mentink-Vigier
- Univ.
Grenoble Alpes, CEA, CNRS, INAC-MEM, F-38000 Grenoble, France
- CIMAR/NMR
National High Magnetic Field Laboratory, 1800 E. Paul Dirac Drive, Tallahassee, Florida 32310, United States
| | | | - Anil P. Jagtap
- Department
of Chemistry, University of Iceland, Science
Institute, Dunhaga 3, 107 Reykjavik, Iceland
| | - Thomas Halbritter
- Department
of Chemistry, University of Iceland, Science
Institute, Dunhaga 3, 107 Reykjavik, Iceland
| | - Johan van Tol
- EMR
National High Magnetic Field Laboratory, 1800 E. Paul Dirac Drive, Tallahassee, Florida 32310, United States
| | - Sabine Hediger
- Univ.
Grenoble Alpes, CEA, CNRS, INAC-MEM, F-38000 Grenoble, France
| | - Daniel Lee
- Univ.
Grenoble Alpes, CEA, CNRS, INAC-MEM, F-38000 Grenoble, France
| | - Snorri Th. Sigurdsson
- Department
of Chemistry, University of Iceland, Science
Institute, Dunhaga 3, 107 Reykjavik, Iceland
| | - Gaël De Paëpe
- Univ.
Grenoble Alpes, CEA, CNRS, INAC-MEM, F-38000 Grenoble, France
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25
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Brownbill NJ, Sprick RS, Bonillo B, Pawsey S, Aussenac F, Fielding AJ, Cooper AI, Blanc F. Structural Elucidation of Amorphous Photocatalytic Polymers from Dynamic Nuclear Polarization Enhanced Solid State NMR. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02544] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Nick J. Brownbill
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
| | - Reiner Sebastian Sprick
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
- Materials Innovation Factory, University of Liverpool, 51 Oxford Street, Liverpool, L7 3NY, United Kingdom
| | - Baltasar Bonillo
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
| | - Shane Pawsey
- Bruker BioSpin Corporation, 15 Fortune Drive, Billerica, Massachusetts 01821, United States
| | - Fabien Aussenac
- Bruker France, 34 rue de l’industrie, 67166 Wissembourg, France
| | - Alistair J. Fielding
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, L3 3AF, United Kingdom
| | - Andrew I. Cooper
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
- Materials Innovation Factory, University of Liverpool, 51 Oxford Street, Liverpool, L7 3NY, United Kingdom
| | - Frédéric Blanc
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
- Stephenson Institute for Renewable Energy, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
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26
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Perras FA, Boteju KC, Slowing II, Sadow AD, Pruski M. Direct 17O dynamic nuclear polarization of single-site heterogeneous catalysts. Chem Commun (Camb) 2018; 54:3472-3475. [DOI: 10.1039/c8cc00293b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Direct DNP is shown to effectively enhance 17O signals from non-protonated binding sites for surface-supported catalysts.
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Affiliation(s)
| | | | | | | | - Marek Pruski
- US DOE
- Ames Laboratory
- Ames
- USA
- Department of Chemistry
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27
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Grekov D, Vancompernolle T, Taoufik M, Delevoye L, Gauvin RM. Solid-state NMR of quadrupolar nuclei for investigations into supported organometallic catalysts: scope and frontiers. Chem Soc Rev 2018; 47:2572-2590. [DOI: 10.1039/c7cs00682a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The scope, limitations and outlooks of half-integer quadrupolar nuclei NMR as applied to supported catalysts characterization are discussed.
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Affiliation(s)
- D. Grekov
- Univ. Lille
- CNRS
- Centrale Lille
- ENSCL
- Univ. Artois
| | | | - M. Taoufik
- Laboratoire de Chimie
- Catalyse
- Polyméres et Procédés
- UMR 5265 CNRS/ESCPE-Lyon/UCBL
- ESCPE Lyon
| | - L. Delevoye
- Univ. Lille
- CNRS
- Centrale Lille
- ENSCL
- Univ. Artois
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28
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Perras FA, Wang Z, Naik P, Slowing II, Pruski M. Natural Abundance
17
O DNP NMR Provides Precise O−H Distances and Insights into the Brønsted Acidity of Heterogeneous Catalysts. Angew Chem Int Ed Engl 2017; 56:9165-9169. [DOI: 10.1002/anie.201704032] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Frédéric A. Perras
- U.S. DOE Ames Laboratory, and Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Zhuoran Wang
- U.S. DOE Ames Laboratory, and Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Pranjali Naik
- U.S. DOE Ames Laboratory, and Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Igor I. Slowing
- U.S. DOE Ames Laboratory, and Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Marek Pruski
- U.S. DOE Ames Laboratory, and Department of Chemistry Iowa State University Ames IA 50011 USA
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Perras FA, Wang Z, Naik P, Slowing II, Pruski M. Natural Abundance
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O DNP NMR Provides Precise O−H Distances and Insights into the Brønsted Acidity of Heterogeneous Catalysts. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704032] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Frédéric A. Perras
- U.S. DOE Ames Laboratory, and Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Zhuoran Wang
- U.S. DOE Ames Laboratory, and Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Pranjali Naik
- U.S. DOE Ames Laboratory, and Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Igor I. Slowing
- U.S. DOE Ames Laboratory, and Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Marek Pruski
- U.S. DOE Ames Laboratory, and Department of Chemistry Iowa State University Ames IA 50011 USA
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Métro TX, Gervais C, Martinez A, Bonhomme C, Laurencin D. Unleashing the Potential of 17 O NMR Spectroscopy Using Mechanochemistry. Angew Chem Int Ed Engl 2017; 56:6803-6807. [PMID: 28455940 DOI: 10.1002/anie.201702251] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Indexed: 12/31/2022]
Abstract
17 O NMR spectroscopy has been the subject of vivid interest in recent years, because there is increasing evidence that it can provide unique insight into the structure and reactivity of many molecules and materials. However, due to the very poor natural abundance of oxygen-17, 17 O labeling is generally a prerequisite. This is a real obstacle for most research groups, because of the high costs and/or strong experimental constraints of the most frequently used 17 O-labeling schemes. Here, we show for the first time that mechanosynthesis offers unique opportunities for enriching in 17 O a variety of organic and inorganic precursors of synthetic interest. The protocols are fast, user-friendly, and low-cost, which makes them highly attractive for a broad research community, and their suitability for 17 O solid-state NMR applications is demonstrated.
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Affiliation(s)
- Thomas-Xavier Métro
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place E. Bataillon, CC 1703, 34095, Montpellier cedex 05, France
| | - Christel Gervais
- Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR 7574, Sorbonne Universités, UPMC Univ Paris 06, 4 Place Jussieu, 75005, Paris, France
| | - Anthony Martinez
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253, CNRS, UM, ENSCM, Campus Triolet, Place E. Bataillon, CC1701, 34095, Montpellier cedex 05, France
| | - Christian Bonhomme
- Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR 7574, Sorbonne Universités, UPMC Univ Paris 06, 4 Place Jussieu, 75005, Paris, France
| | - Danielle Laurencin
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253, CNRS, UM, ENSCM, Campus Triolet, Place E. Bataillon, CC1701, 34095, Montpellier cedex 05, France
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Métro TX, Gervais C, Martinez A, Bonhomme C, Laurencin D. Unleashing the Potential of17O NMR Spectroscopy Using Mechanochemistry. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702251] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Thomas-Xavier Métro
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247, CNRS; Université de Montpellier, ENSCM, Campus Triolet; Place E. Bataillon, CC 1703 34095 Montpellier cedex 05 France
| | - Christel Gervais
- Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP); UMR 7574; Sorbonne Universités, UPMC Univ Paris 06; 4 Place Jussieu 75005 Paris France
| | - Anthony Martinez
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253, CNRS, UM, ENSCM; Campus Triolet; Place E. Bataillon, CC1701 34095 Montpellier cedex 05 France
| | - Christian Bonhomme
- Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP); UMR 7574; Sorbonne Universités, UPMC Univ Paris 06; 4 Place Jussieu 75005 Paris France
| | - Danielle Laurencin
- Institut Charles Gerhardt de Montpellier (ICGM), UMR 5253, CNRS, UM, ENSCM; Campus Triolet; Place E. Bataillon, CC1701 34095 Montpellier cedex 05 France
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