Measurement and Analysis of the Molecular Ordering Tensors of Two Enantiomers Oriented in a Polypeptide Liquid Crystalline System
| Autor: | Denis Merlet, and Aharon Loewenstein, Philippe Lesot, Jacques Courtieu, Yves Gounelle |
|---|---|
| Přispěvatelé: | Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Recurrent funding (CNRS and Univ. Paris-Sud) |
| Rok vydání: | 1996 |
| Předmět: |
PBLG
Proton 010405 organic chemistry Chemistry Stereochemistry Carbon-13 General Engineering 010402 general chemistry 01 natural sciences NMR 0104 chemical sciences NMR spectra database Saupe matrix Crystallography chemistry.chemical_compound [CHIM.ANAL]Chemical Sciences/Analytical chemistry Phase (matter) Lyotropic Molecule Chiral liquid crystal Physical and Theoretical Chemistry Enantiomer Methylene Order parameter Principal axis theorem |
| Zdroj: | The Journal of physical chemistry The Journal of physical chemistry, American Chemical Society (ACS), 1995, 99 (40), pp.14871-14875. ⟨10.1021/j100040a042⟩ |
| ISSN: | 1541-5740 0022-3654 |
| Popis: | International audience; High-resolution proton and natural abundance carbon-13 NMR spectra of a rigid chiral molecule, (+/-)-p-(trichloromethyl)-beta-propiolactone, dissolved in the liquid-crystalline phase of poly(gamma-benzyl-L-glutamate)(PBLG), in methylene chloride, were analyzed. From the NMR data and the X-ray structure, the full ordermatrix was determined and analyzed in detail for each optical isomer of the molecule. It is shown that thespectral discrimination of the enantiomers in this lyotropic medium arises mainly from the difference in theiraverage molecular orientation and the principal axis systems of orientation are compared. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|