The orientational order and conformational distributions of the two enantiomers in a racemic mixture of a chiral, flexible molecule dissolved in a chiral nematic liquid crystalline solvent
Résumé
The orientational order and conformational distributions of the two enantiomers of (+/-)-a-ethylhexanoic
acid-d15 , a flexible chiral molecule, dissolved in a chiral nematic liquid crystalline solvent made of PBLG in an
organic co-solvent are obtained by analysis of NMR data. The anisotropic, NMR parameters are obtained
from the separated analysis of the two enantiomers using carbon–deuterium, deuterium–deuterium 2D
correlation experiments and proton-coupled carbon-13 1D experiments. The analysis of conformational
distributions, and the conformationally dependent orientational order parameters are derived using the additive
potential, AP, model.