Title

The Synthesis and Liquid Crystal Behavior of p-Benzotrifluoride Compounds I

Publication Title

Molecular Crystals and Liquid Crystals

Publication Date

1987

Document Type

Article

DOI

10.1080/00268948708084594

Keywords

benzotrifluoride, trifluoromethyl, time response, TN cell

Disciplines

Physics

Abstract

Three compounds with the R–X–Y–CF3 structure were synthesized where X is a trans cyclohexyl ring, Y is a benzene ring and R is an alkyl group. The stuctrure assignments were confirmed by carbon 13 NMR and the compounds were purified by preparative liquid chromatography. The separation of cis and trans isomers of 1-p-trifluorophenyl-4-alkyl-cyclohexonal is also discussed. Although these compounds do not have a liquid crystalline phase themselves, a liquid crystal mixture containing them shows a much faster turn off speed than materials without them.

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