The effect of a chiral nematic solvent on the orientational order and conformational distribution of a flexible prochiral solute
The effect of a chiral nematic solvent on the orientational order and conformational distribution of a flexible prochiral solute
Deuterium NMR spectroscopy is used to detect the reduction in symmetry which occurs when a flexible, prochiral molecule, 4-pentyl-4'-cyanobiphenyl, is dissolved in a chiral nematic solvent produced by dissolving poly-gamma-benzyl-L-glutamate in organic solvents. The quadrupolar splittings obtained are used to investigate whether this phenomenon is the result of a reduction in symmetry of the anisotropic, solute - solvent interaction potential or whether the conformational distribution is also affected. It is demonstrated that the first assumption explains the enantiotopic discrimination in chiral liquid crystals and it is possible in this chiral medium to determine the relative configuration of the deuteriums in the methylene groups.
polypeptide liquid-crystal, abundance deuterium nmr, isotopic-substitution, molecules, spectroscopy, enantiomers, spectra, 4-n-pentyl-4' -cyanobiphenyl, differentiation, visualization
5331-5337
Emsley, J.W.
9d219d5e-28c0-4a8c-bf3d-1f78cd707c17
Lesot, Philippe
7de481f6-c101-4f05-83ae-804503b9985e
Courtieu, Jacques
f889948b-fed3-4e07-a4b8-2bc0e9c0239a
Merlet, Denis
d2995516-205e-4bbb-b8e5-4aa521202eea
2004
Emsley, J.W.
9d219d5e-28c0-4a8c-bf3d-1f78cd707c17
Lesot, Philippe
7de481f6-c101-4f05-83ae-804503b9985e
Courtieu, Jacques
f889948b-fed3-4e07-a4b8-2bc0e9c0239a
Merlet, Denis
d2995516-205e-4bbb-b8e5-4aa521202eea
Emsley, J.W., Lesot, Philippe, Courtieu, Jacques and Merlet, Denis
(2004)
The effect of a chiral nematic solvent on the orientational order and conformational distribution of a flexible prochiral solute.
Physical Chemistry Chemical Physics, 6 (23), .
(doi:10.1039/b411203b).
Abstract
Deuterium NMR spectroscopy is used to detect the reduction in symmetry which occurs when a flexible, prochiral molecule, 4-pentyl-4'-cyanobiphenyl, is dissolved in a chiral nematic solvent produced by dissolving poly-gamma-benzyl-L-glutamate in organic solvents. The quadrupolar splittings obtained are used to investigate whether this phenomenon is the result of a reduction in symmetry of the anisotropic, solute - solvent interaction potential or whether the conformational distribution is also affected. It is demonstrated that the first assumption explains the enantiotopic discrimination in chiral liquid crystals and it is possible in this chiral medium to determine the relative configuration of the deuteriums in the methylene groups.
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Published date: 2004
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Keywords:
polypeptide liquid-crystal, abundance deuterium nmr, isotopic-substitution, molecules, spectroscopy, enantiomers, spectra, 4-n-pentyl-4' -cyanobiphenyl, differentiation, visualization
Identifiers
Local EPrints ID: 20190
URI: http://eprints.soton.ac.uk/id/eprint/20190
ISSN: 1463-9076
PURE UUID: d703a18d-4867-4351-9bcf-4163ffc24ddf
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Date deposited: 22 Feb 2006
Last modified: 15 Mar 2024 06:22
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Contributors
Author:
J.W. Emsley
Author:
Philippe Lesot
Author:
Jacques Courtieu
Author:
Denis Merlet
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