期刊
MAGNETIC RESONANCE IN CHEMISTRY
卷 42, 期 7, 页码 594-599出版社
WILEY
DOI: 10.1002/mrc.1399
关键词
NMR; C-13 NMR; chiral liquid crystal; selective pulses; enantiomeric excess
We report the use of carbon-proton heteronuclear selective refocusing 2D NMR experiments dedicated to the spectral analysis of enantiomers dissolved in weakly ordering chiral liquid crystalline solvents. The method permits the extraction of carbon-proton residual dipolar couplings for each enantiomer from a complex or unresolved proton-coupled C-13 spectral patterns. Illustrative examples are analysed and discussed. It is shown that an accurate determination of enantiomeric excess is possible. Copyright (C) 2004 John Wiley Sons, Ltd.
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