Liquid crystal compound

Details Liquid crystal compound Liquid crystal compound

1991-01-28

1993-04-13

Stoll, Robert L.

Compositions

Electrolytes for electrical devices

25229967, 544242, 544335, C09K 1934, C07D23902

Patent

active

052020541

ABSTRACT:
A liquid crystal compound represented by formula (I): ##STR1## wherein R.sub.1 represents an alkyl group having from 1 to 18 carbon atoms; R.sub.2 represents an optically active group represented by formula (II), (III) or (IV): ##STR2## wherein R.sub.3 represents a lower halo-alkyl group having from 1 to 2 carbon atoms; X represents --O--, --COO--, --OCO-- or a single bond; Y represents --CH.sub.2 O-- or --COO--; and Z represents --COO-- or --O--, l represents 0 or 1, provided that when l is 0, Y is a single bond; n represents an integer of from 1 to 18; and * indicates an optically active center. The compound exhibits three stable states of molecular orientation.

REFERENCES:
patent: 4764636 (1988-08-01), Sasaki et al.
patent: 4918213 (1990-04-01), Nohira et al.
patent: 4921632 (1990-04-01), Nakamura et al.
Derwent Abstract of JP-A-2-255661.

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