Fluorine-containing optically active compound and liquid crystal

Details Fluorine-containing optically active compound and liquid crystal Fluorine-containing optically active compound and liquid crystal

1991-07-31

1994-01-04

Stoll, Robert L.

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

25229901, 544298, 544335, C09K 1934, C09K 1952, C07D23902

Patent

active

052757560

ABSTRACT:
A fluorine-containing optically active compound represented by formula (I): ##STR1## wherein R.sub.1 represents a straight chain alkyl or alkoxy group having from 6 to 14 carbon atoms or a 4-alkylphenyl or 4-alkoxyphenyl group having from 8 to 12 carbon atoms; R.sub.2 represents a straight chain alkyl group having from 1 to 8 carbon atoms; C.sup.* represents an asymmetric carbon atoms; and X represents a hydrogen atom or a fluorine atom, provided that X represents a fluorine atom when R.sub.1 contains a phenyl group, and a liquid crystal composition containing the same are disclosed. The compound (I) has large spontaneous polarization and low viscosity to achieve a fast response time. In the N.sup.* phase of the compound (I), the helical pitch has small temperature dependence.

REFERENCES:
patent: 5120468 (1992-06-01), Saito et al.

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