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Welton C, Raval P, Trébosc J, Reddy GNM. Chemical exchange of labile protons by deuterium enables selective detection of pharmaceuticals in solid formulations. Chem Commun (Camb) 2022; 58:11551-11554. [PMID: 36165029 DOI: 10.1039/d2cc04585k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chemically assisted swapping of labile protons by deuterons is presented for amino acids, polysaccharides, pharmaceutical compounds, and their solid formulations. Solid-state packing interactions in these compounds are elucidated by 1H-2H isotope correlation NMR spectroscopy (iCOSY). A minuscule concentration of dopamine, 5 wt% or ∼100 μg, in a solid formulation can be detected by 2H NMR at 28.2 T (1H, 1200 MHz) in under a minute.
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Affiliation(s)
- Claire Welton
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France.
| | - Parth Raval
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France.
| | - Julien Trébosc
- University of Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638 - IMEC - Institut Michel-Eugène Chevreul, F-59000, Lille, France
| | - G N Manjunatha Reddy
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000, Lille, France.
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Szalontai G, Csonka R, Kaizer J, Bombicz P, Sabolović J. 2 H magic-angle spinning NMR and powder diffraction study of deuterated paramagnetic copper(II) glycinato complexes. Information on crystallographic symmetries, stereo-isomerism, and molecular mobility available from ssNMR spectra. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.05.071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bracco S, Miyano T, Negroni M, Bassanetti I, Marchio' L, Sozzani P, Tohnai N, Comotti A. CO2 regulates molecular rotor dynamics in porous materials. Chem Commun (Camb) 2017. [DOI: 10.1039/c7cc02983g] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Porous molecular crystals contain fast molecular rotors whose dynamics can be controlled by CO2.
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Affiliation(s)
- S. Bracco
- Department of Materials Science
- University of Milano Bicocca
- via R. Cozzi 55
- 2015
- Milano
| | - T. Miyano
- Department of Material and Life Science
- Graduate School of Engineering
- Suita
- Japan
| | - M. Negroni
- Department of Materials Science
- University of Milano Bicocca
- via R. Cozzi 55
- 2015
- Milano
| | - I. Bassanetti
- Department of Materials Science
- University of Milano Bicocca
- via R. Cozzi 55
- 2015
- Milano
| | - L. Marchio'
- Department of Chemistry
- University of Parma
- Parco Area delle Scienze 17/a
- 43124 Parma
- Italy
| | - P. Sozzani
- Department of Materials Science
- University of Milano Bicocca
- via R. Cozzi 55
- 2015
- Milano
| | - N. Tohnai
- Department of Material and Life Science
- Graduate School of Engineering
- Suita
- Japan
| | - A. Comotti
- Department of Materials Science
- University of Milano Bicocca
- via R. Cozzi 55
- 2015
- Milano
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Rossini AJ, Schlagnitweit J, Lesage A, Emsley L. High-resolution NMR of hydrogen in organic solids by DNP enhanced natural abundance deuterium spectroscopy. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2015; 259:192-198. [PMID: 26363582 DOI: 10.1016/j.jmr.2015.08.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 08/21/2015] [Accepted: 08/28/2015] [Indexed: 06/05/2023]
Abstract
We demonstrate that high field (9.4 T) dynamic nuclear polarization (DNP) at cryogenic (∼100 K) sample temperatures enables the rapid acquisition of natural abundance (1)H-(2)H cross-polarization magic angle spinning (CPMAS) solid-state NMR spectra of organic solids. Spectra were obtained by impregnating substrates with a solution of the stable DNP polarizing agent TEKPol in tetrachloroethane. Tetrachloroethane is a non-solvent for the solids, and the unmodified substrates are then polarized through spin diffusion. High quality natural abundance (2)H CPMAS spectra of histidine hydrochloride monohydrate, glycylglycine and theophylline were acquired in less than 2h, providing direct access to hydrogen chemical shifts and quadrupolar couplings. The spectral resolution of the (2)H solid-state NMR spectra is comparable to that of (1)H spectra obtained with state of the art homonuclear decoupling techniques.
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Affiliation(s)
- Aaron J Rossini
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; Institut des Sciences Analytiques, Centre de RMN à très hauts champs (CNRS/ENS-Lyon, UCB-Lyon1), Université de Lyon, 69100 Villeurbanne, France
| | - Judith Schlagnitweit
- Institut des Sciences Analytiques, Centre de RMN à très hauts champs (CNRS/ENS-Lyon, UCB-Lyon1), Université de Lyon, 69100 Villeurbanne, France
| | - Anne Lesage
- Institut des Sciences Analytiques, Centre de RMN à très hauts champs (CNRS/ENS-Lyon, UCB-Lyon1), Université de Lyon, 69100 Villeurbanne, France
| | - Lyndon Emsley
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; Institut des Sciences Analytiques, Centre de RMN à très hauts champs (CNRS/ENS-Lyon, UCB-Lyon1), Université de Lyon, 69100 Villeurbanne, France.
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Comotti A, Bracco S, Ben T, Qiu S, Sozzani P. Molecular Rotors in Porous Organic Frameworks. Angew Chem Int Ed Engl 2014; 53:1043-7. [DOI: 10.1002/anie.201309362] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Indexed: 11/10/2022]
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Comotti A, Bracco S, Ben T, Qiu S, Sozzani P. Molecular Rotors in Porous Organic Frameworks. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309362] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Aliev AE, Courtier-Murias D. Concise NMR approach for molecular dynamics characterizations in organic solids. J Phys Chem A 2013; 117:7855-62. [PMID: 23879450 DOI: 10.1021/jp4064005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Molecular dynamics characterisations in solids can be carried out selectively using dipolar-dephasing experiments. Here we show that the introduction of a sum of Lorentzian and Gaussian functions greatly improve fittings of the "intensity versus time" data for protonated carbons in dipolar-dephasing experiments. The Lorentzian term accounts for remote intra- and intermolecular (1)H-(13)C dipole-dipole interactions, which vary from one molecule to another or for different carbons within the same molecule. Thus, by separating contributions from weak remote interactions, more accurate Gaussian decay constants, T(dd), can be extracted for directly bonded (1)H-(13)C dipole-dipole interactions. Reorientations of the (1)H-(13)C bonds lead to the increase of T(dd), and by measuring dipolar-dephasing constants, insight can be gained into dynamics in solids. We have demonstrated advantages of the method using comparative dynamics studies in the α and γ polymorphs of glycine, cyclic amino acids L-proline, DL-proline and trans-4-hydroxy-L-proline, the Ala residue in different dipeptides, as well as adamantane and hexamethylenetetramine. It was possible to distinguish subtle differences in dynamics of different carbon sites within a molecule in polymorphs and in L- and DL-forms. The presence of overall molecular motions is shown to lead to particularly large differences in dipolar-dephasing experiments. The differences in dynamics can be attributed to differences in noncovalent interactions. In the case of hexamethylenetetramine, for example, the presence of C-H···N interactions leads to nearly rigid molecules. Overall, the method allows one to gain insight into the role of noncovalent interactions in solids and their influence on the molecular dynamics.
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Affiliation(s)
- Abil E Aliev
- Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, UK.
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Aliev AE, Mann SE, Rahman AS, McMillan PF, Corà F, Iuga D, Hughes CE, Harris KDM. High-Resolution Solid-State 2H NMR Spectroscopy of Polymorphs of Glycine. J Phys Chem A 2011; 115:12201-11. [DOI: 10.1021/jp207592u] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Abil E. Aliev
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Sam E. Mann
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Aisha S. Rahman
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Paul F. McMillan
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Furio Corà
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Dinu Iuga
- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Colan E. Hughes
- School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, Wales
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