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Nucera A, Platas-Iglesias C, Carniato F, Botta M. Effect of hydration equilibria on the relaxometric properties of Gd(III) complexes: new insights into old systems. Dalton Trans 2023; 52:17229-17241. [PMID: 37955945 DOI: 10.1039/d3dt03413e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
We present a detailed relaxometric and computational investigation of three Gd(III) complexes that exist in solution as an equilibrium of two species with a different number of coordinated water molecules: [Gd(H2O)q]3+ (q = 8, 9), [Gd(EDTA)(H2O)q]- and [Gd(CDTA)(H2O)q]- (q = 2, 3). 1H nuclear magnetic relaxation dispersion (NMRD) data were recorded from aqueous solutions of these complexes using a wide Larmor frequency range (0.01-500 MHz). These data were complemented with 17O transverse relaxation rates and chemical shifts recorded at different temperatures. The simultaneous fit of the NMRD and 17O NMR data was guided by computational studies performed at the DFT and CASSCF/NEVPT2 levels, which provided information on Gd⋯H distances, 17O hyperfine coupling constants and the zero-field splitting (ZFS) energy, which affects electronic relaxation. The hydration equilibrium did not have a very important effect in the fits of the experimental data for [Gd(H2O)q]3+ and [Gd(CDTA)(H2O)q]-, as the hydration equilibrium is largely shifted to the species with the lowest hydration number (q = 8 and 2, respectively). The quality of the analysis improves however considerably for [Gd(EDTA)(H2O)q]- upon considering the effect of the hydration equilibrium. As a result, this study provides for the first time an analysis of the relaxation properties of this important model system, as well as accurate parameters for [Gd(H2O)q]3+ and [Gd(CDTA)(H2O)q]-.
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Affiliation(s)
- Alessandro Nucera
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121 Alessandria, Italy.
| | - Carlos Platas-Iglesias
- Universidade da Coruña, Centro de Interdisciplinar de Química e Bioloxía (CICA) and Departamento de Química, Facultade de Ciencias, 15071, A Coruña, Galicia, Spain.
| | - Fabio Carniato
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121 Alessandria, Italy.
| | - Mauro Botta
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale T. Michel 11, 15121 Alessandria, Italy.
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2
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Damodaran K. Recent advances in NMR spectroscopy of ionic liquids. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2022; 129:1-27. [PMID: 35292132 DOI: 10.1016/j.pnmrs.2021.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 12/17/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
This review presents recent developments in the application of NMR spectroscopic techniques in the study of ionic liquids. NMR has been the primary tool not only for the structural characterization of ionic liquids, but also for the study of dynamics. The presence of a host of NMR active nuclei in ionic liquids permits widespread use of multinuclear NMR experiments. Chemical shifts and multinuclear coupling constants are used routinely for the structure elucidation of ionic liquids and of products formed by their covalent interactions with other materials. Also, the availability of a multitude of NMR techniques has facilitated the study of dynamical processes in them. These include the use of NOESY to study inter-ionic interactions, pulsed-field gradient techniques for probing transport properties, and relaxation measurements to elucidate rotational dynamics. This review will focus on the application of each of these techniques to investigate ionic liquids.
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Affiliation(s)
- Krishnan Damodaran
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, United States.
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3
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Nuclear Magnetic Resonance with Fast Field-Cycling Setup: A Valid Tool for Soil Quality Investigation. AGRONOMY-BASEL 2020. [DOI: 10.3390/agronomy10071040] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Nuclear magnetic resonance (NMR) techniques are largely employed in several fields. As an example, NMR spectroscopy is used to provide structural and conformational information on pure systems, while affording quantitative evaluation on the number of nuclei in a given chemical environment. When dealing with relaxation, NMR allows understanding of molecular dynamics, i.e., the time evolution of molecular motions. The analysis of relaxation times conducted on complex liquid–liquid and solid–liquid mixtures is directly related to the nature of the interactions among the components of the mixture. In the present review paper, the peculiarities of low resolution fast field-cycling (FFC) NMR relaxometry in soil science are reported. In particular, the general aspects of the typical FFC NMR relaxometry experiment are firstly provided. Afterwards, a discussion on the main mathematical models to be used to “read” and interpret experimental data on soils is given. Following this, an overview on the main results in soil science is supplied. Finally, new FFC NMR-based hypotheses on nutrient dynamics in soils are described
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Chanet N, Guillot G, Willoquet G, Jourdain L, Dubuisson RM, Reganha G, de Rochefort L. Design of a fast field-cycling magnetic resonance imaging system, characterization and methods for relaxation dispersion measurements around 1.5 T. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2020; 91:024102. [PMID: 32113406 DOI: 10.1063/1.5128851] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
The dependence of the nuclear magnetic resonance relaxation rate on the magnetic field has been widely studied, in particular, in biomedical areas with the objectives to better understand the underlying microscopic mechanisms in tissues and provide biomarkers of diseases. By combining fast-field cycling (FFC) and magnetic resonance imaging (MRI), it is possible to provide localized relaxation dispersion measurements in heterogeneous systems with recent demonstrations in solutions, biological samples, human beings, and small animals. We report here the developments and performances of a device designed for small animal FFC-MRI comprising a resistive insert technology operating inside a 1.5 T MRI system. Specific measurement methods were developed to characterize the system efficiency, response time, homogeneity, stability, and compensation. By adding a non-linear element in the system and using a dual amplifier strategy, it is shown that large field offsets can be produced during relaxation periods while maintaining precise field control during detection periods. The measurement of longitudinal nuclear magnetic relaxation dispersion (NMRD) profiles in the range of 1.08 T-1.92 T is reported, essentially displaying a linear variation in this range for common MRI contrast agents. The slopes of both the longitudinal and transverse relaxation dispersion profiles at 1.5 T are measured and validated, extending the capabilities of previous approaches. The performances of a longitudinal relaxation dispersion mapping method are finally reported, opening the way to quantitative preclinical dispersion imaging studies at a high FFC-MRI field.
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Affiliation(s)
- Nicolas Chanet
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Geneviève Guillot
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Georges Willoquet
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Laurène Jourdain
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Rose-Marie Dubuisson
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Gaël Reganha
- Imagerie par Résonance Magnétique Médicale et Multi-Modalités (UMR8081) IR4M, CNRS, Université Paris-Sud, Université Paris-Saclay, Orsay, France
| | - Ludovic de Rochefort
- Aix-Marseille University, CNRS, CRMBM (Center for Magnetic Resonance in Biology and Medicine-UMR 7339), Marseille, France
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5
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Tayler MCD, Ward-Williams J, Gladden LF. NMR relaxation in porous materials at zero and ultralow magnetic fields. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2018; 297:1-8. [PMID: 30316016 DOI: 10.1016/j.jmr.2018.09.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/28/2018] [Accepted: 09/29/2018] [Indexed: 06/08/2023]
Abstract
NMR detection in the ultralow-field regime (below 10 μT) was used to measure the nuclear spin relaxation rates of liquids imbibed into silica pellets with mean pore diameters in the 10-50 nm range. Heptane, formic acid and acetic acid were studied and relaxation rate data were compared with a conventional field-cycling NMR technique. Detection of 1H-13C spin coupling NMR signals at zero field (∼0.1 nT) allowed spectroscopic identification of molecules inside the porous material and unambiguous measurements of the chemistry-specific relaxation rates in liquid mixtures. In the case of molecules that contain 1H and 13C, spin-singlet state relaxation can provide additional information about the dynamics. Applications and future improvements to the methodology are discussed.
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Affiliation(s)
- Michael C D Tayler
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK.
| | - Jordan Ward-Williams
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - Lynn F Gladden
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
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6
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Belaïd S, Stanicki D, Vander Elst L, Muller RN, Laurent S. Influence of experimental parameters on iron oxide nanoparticle properties synthesized by thermal decomposition: size and nuclear magnetic resonance studies. NANOTECHNOLOGY 2018; 29:165603. [PMID: 29485102 DOI: 10.1088/1361-6528/aaae59] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A study of the experimental conditions to synthesize monodisperse iron oxide nanocrystals prepared from the thermal decomposition of iron(III) acetylacetonate was carried out in the presence of surfactants and a reducing agent. The influence of temperature, synthesis time and surfactant amounts on nanoparticle properties is reported. This investigation combines relaxometric characterization and size properties. The relaxometric behavior of the nanomaterials depends on the selected experimental parameters. The synthesis of iron oxide nanoparticles with a high relaxivity and a high saturation magnetization can be obtained with a short reaction time at high temperature. Moreover, the influence of surfactant concentrations determines the optimal value in order to produce iron oxide nanoparticles with a narrow size distribution. The optimized synthesis is rapid, robust and reproductive, and produces nearly monodisperse magnetic nanocrystals.
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Affiliation(s)
- Sarah Belaïd
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, B-7000 Mons, Belgium
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7
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Korb JP. Multiscale nuclear magnetic relaxation dispersion of complex liquids in bulk and confinement. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2018; 104:12-55. [PMID: 29405980 DOI: 10.1016/j.pnmrs.2017.11.001] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 10/29/2017] [Accepted: 11/01/2017] [Indexed: 06/07/2023]
Abstract
The nuclear magnetic relaxation dispersion (NMRD) technique consists of measurement of the magnetic-field dependence of the longitudinal nuclear-spin-lattice relaxation rate 1/T1. Usually, the acquisition of the NMRD profiles is made using a fast field cycling (FFC) NMR technique that varies the magnetic field and explores a very large range of Larmor frequencies (10 kHz < ω0/(2π) <40 MHz). This allows extensive explorations of the fluctuations to which nuclear spin relaxation is sensitive. The FFC technique thus offers opportunities on multiple scales of both time and distance for characterizing the molecular dynamics and transport properties of complex liquids in bulk or embedded in confined environments. This review presents the principles, theories and applications of NMRD for characterizing fundamental properties such as surface correlation times, diffusion coefficients and dynamical surface affinity (NMR wettability) for various confined liquids. The basic longitudinal and transverse relaxation equations are outlined for bulk liquids. The nuclear relaxation of a liquid confined in pores is considered in detail in order to find the biphasic fast exchange relations for a liquid at proximity of a solid surface. The physical-chemistry of liquids at solid surfaces induces striking differences between NMRD profiles of aprotic and protic (water) liquids embedded in calibrated porous disordered materials. A particular emphasis of this review concerns the extension of FFC NMR relaxation to industrial applications. For instance, it is shown that the FFC technique is sufficiently rapid for following the progressive setting of cement-based materials (plasters, cement pastes, concretes). The technique also allows studies of the dynamics of hydrocarbons in proximity of asphaltene nano-aggregates and macro-aggregates in heavy crude oils as a function of the concentration of asphaltenes. It also gives new information on the wettability of petroleum fluids (brine and oil) embedded in shale oil rocks. It is useful for understanding the relations and correlations between NMR relaxation times T1 and T2, diffusion coefficients D, and viscosity η of heavy crude oils. This is of particular importance for interpreting T1, T2, 2D T1-T2 and D-T2 correlation spectra that could be obtained down-hole, thus giving a valuable tool for investigating in situ the molecular dynamics of petroleum fluids. Another domain of interest concerns biological applications. This is of particular importance for studying the complex dynamical spectrum of a folded polymeric structure that may span many decades in frequency or time. A direct NMRD characterization of water diffusional dynamics is presented at the protein interface. NMR experiments using a shuttle technique give results well above the frequency range accessible via the FFC technique; examples of this show protein dynamics over a range from fast and localized motions to slow and delocalized collective motions involving the whole protein. This review ends by an interpretation of the origin of the proton magnetic field dependence of T1 for different biological tissues of animals; this includes a proposal for interpreting in vivo MRI data from human brain at variable magnetic fields, where the FFC relaxation analysis suggests that brain white-matter is distinct from grey-matter, in agreement with diffusion-weighted MRI imaging.
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Affiliation(s)
- Jean-Pierre Korb
- Laboratoire de Physique de la Matière Condensée, Ecole Polytechnique, CNRS, Université de Paris Saclay, 91128 Palaiseau Cedex, France; Sorbonne Universités, UPMC Univ. Paris 06, CNRS, PHENIX Laboratory, F-75005 Paris, France.
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8
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Ultra-wide range field-dependent measurements of the relaxivity of Gd 1-xEu xVO 4 nanoparticle contrast agents using a mechanical sample-shuttling relaxometer. Sci Rep 2017; 7:44770. [PMID: 28317892 PMCID: PMC5357940 DOI: 10.1038/srep44770] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 02/14/2017] [Indexed: 11/17/2022] Open
Abstract
The current trend for Magnetic Resonance Imaging points towards higher magnetic fields. Even though sensitivity and resolution are increased in stronger fields, T1 contrast is often reduced, and this represents a challenge for contrast agent design. Field-dependent measurements of relaxivity are thus important to characterize contrast agents. At present, the field-dependent curves of relaxivity are usually carried out in the field range of 0 T to 2 T, using fast field cycling relaxometers. Here, we employ a high-speed sample shuttling device to switch the magnetic fields experienced by the nuclei between virtually zero field, and the center of any commercial spectrometer. We apply this approach on rare-earth (mixed Gadolinium-Europium) vanadate nanoparticles, and obtain the dispersion curves from very low magnetic field up to 11.7 T. In contrast to the relaxivity profiles of Gd chelates, commonly used for clinical applications, which display a plateau and then a decrease for increasing magnetic fields, these nanoparticles provide maximum contrast enhancement for magnetic fields around 1–1.5 T. These field-dependent curves are fitted using the so-called Magnetic Particle (MP) model and the extracted parameters discussed as a function of particle size and composition. We finally comment on the new possibilities offered by this approach.
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9
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Dalvit C, Piotto M. 19 F NMR transverse and longitudinal relaxation filter experiments for screening: a theoretical and experimental analysis. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2017; 55:106-114. [PMID: 27514284 DOI: 10.1002/mrc.4500] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 08/09/2016] [Indexed: 06/06/2023]
Abstract
Ligand-based 19 F NMR screening represents an efficient approach for performing binding assays. The high sensitivity of the methodology to receptor binding allows the detection of weak affinity ligands. The observable NMR parameters that are typically used are the 19 F transverse relaxation rate and isotropic chemical shift. However, there are few cases where the 19 F longitudinal relaxation rate should also be used. A theoretical and experimental analysis of the 19 F NMR transverse and longitudinal relaxation rates at different magnetic fields is presented along with proposed methods for improving the sensitivity and dynamic range of these experiments applied to fragment-based screening. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Claudio Dalvit
- Faculty of Science, University of Neuchatel, Neuchatel, Switzerland
- IDD/SDI, Sanofi, Vitry-sur-Seine, France
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10
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Cousin SF, Kadeřávek P, Haddou B, Charlier C, Marquardsen T, Tyburn JM, Bovier PA, Engelke F, Maas W, Bodenhausen G, Pelupessy P, Ferrage F. Recovering Invisible Signals by Two-Field NMR Spectroscopy. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602978] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Samuel F. Cousin
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
| | - Pavel Kadeřávek
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
| | - Baptiste Haddou
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR, 8640 Pasteur; 75005 Paris France
| | - Cyril Charlier
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
- Laboratory of Chemical Physics, NIDDK, NIH; Bethesda MD 20892 USA
| | | | - Jean-Max Tyburn
- Bruker BioSpin; 34 rue de l'Industrie BP 10002 67166 Wissembourg Cedex France
| | | | - Frank Engelke
- Bruker BioSpin GmbH; Silberstreifen 4 76287 Rheinstetten Germany
| | | | - Geoffrey Bodenhausen
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
| | - Philippe Pelupessy
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
| | - Fabien Ferrage
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
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11
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Cousin SF, Kadeřávek P, Haddou B, Charlier C, Marquardsen T, Tyburn JM, Bovier PA, Engelke F, Maas W, Bodenhausen G, Pelupessy P, Ferrage F. Recovering Invisible Signals by Two-Field NMR Spectroscopy. Angew Chem Int Ed Engl 2016; 55:9886-9. [DOI: 10.1002/anie.201602978] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Samuel F. Cousin
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
| | - Pavel Kadeřávek
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
| | - Baptiste Haddou
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR, 8640 Pasteur; 75005 Paris France
| | - Cyril Charlier
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
- Laboratory of Chemical Physics, NIDDK, NIH; Bethesda MD 20892 USA
| | | | - Jean-Max Tyburn
- Bruker BioSpin; 34 rue de l'Industrie BP 10002 67166 Wissembourg Cedex France
| | | | - Frank Engelke
- Bruker BioSpin GmbH; Silberstreifen 4 76287 Rheinstetten Germany
| | | | - Geoffrey Bodenhausen
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
| | - Philippe Pelupessy
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
| | - Fabien Ferrage
- Department of Chemistry, Ecole Normale Supérieure; PSL Research University; 24 rue Lhomond 75005 Paris France
- Sorbonne Universités, UPMC Univ Paris 06, LBM; 4 place Jussieu 75005 Paris France
- CNRS, UMR 7203 LBM; 75005 Paris France
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12
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Cousin SF, Charlier C, Kadeřávek P, Marquardsen T, Tyburn JM, Bovier PA, Ulzega S, Speck T, Wilhelm D, Engelke F, Maas W, Sakellariou D, Bodenhausen G, Pelupessy P, Ferrage F. High-resolution two-field nuclear magnetic resonance spectroscopy. Phys Chem Chem Phys 2016; 18:33187-33194. [DOI: 10.1039/c6cp05422f] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-field NMR provides correlations of nuclear spins at the most favourable magnetic fields in a single experiment.
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Affiliation(s)
- Samuel F. Cousin
- Département de Chimie
- Ecole Normale Supérieure
- PSL Research University
- UPMC Univ Paris 06
- CNRS
| | - Cyril Charlier
- Département de Chimie
- Ecole Normale Supérieure
- PSL Research University
- UPMC Univ Paris 06
- CNRS
| | - Pavel Kadeřávek
- Département de Chimie
- Ecole Normale Supérieure
- PSL Research University
- UPMC Univ Paris 06
- CNRS
| | | | | | | | | | | | | | | | | | | | - Geoffrey Bodenhausen
- Département de Chimie
- Ecole Normale Supérieure
- PSL Research University
- UPMC Univ Paris 06
- CNRS
| | - Philippe Pelupessy
- Département de Chimie
- Ecole Normale Supérieure
- PSL Research University
- UPMC Univ Paris 06
- CNRS
| | - Fabien Ferrage
- Département de Chimie
- Ecole Normale Supérieure
- PSL Research University
- UPMC Univ Paris 06
- CNRS
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