The measurement of high enantiomeric excesses in chiral liquid crystals using 19F NMR and exchangeable protons in 2H NMR.
It is shown that the 19F spectrum and the 2H NMR spectrum of deuterated protons in a chiral liquid crystal medium can be used to measure high enantiomeric excesses.
Phillips
Andrew R
AR
Pharmaceutical & Analytical R&D, AstraZeneca, Silk Road Business Park, Macclesfield, Cheshire, UK. Andrew.R.Phillips@astrazeneca.com
Sharman
Gary J
GJ