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Infrared Rotatory Dispersion of Liquid‐Crystalline Solutions of Chiral Molecules
Author(s) -
Korte ErnstHeiner,
Schrader Bernhard,
Bualek Sauvarop,
Krabbe Hans Jürgen
Publication year - 1977
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.197707901
Subject(s) - liquid crystal , molecule , dispersion (optics) , sign (mathematics) , dissolution , infrared , reflection (computer programming) , liquid crystalline , materials science , optical rotatory dispersion , crystallography , chemical physics , chemistry , optics , organic chemistry , physics , circular dichroism , optoelectronics , mathematics , computer science , mathematical analysis , programming language
The absolute configuration of molecules with a chiral center can be established by a new empirical procedure: nematic phases of liquid‐crystalline compounds become cholesteric on dissolution of a chiral “guest substance”. The sign of the measured Reflection Cotton Effect provides information whether the three ligands of greatest priority a > b > c (see priority scheme) are arranged clockwise or counterclockwise.