Patent ID: 6309561
Filing Date: 2001-10-30
Classification: C07D,C09K

Abstract:
Fluorine-containing, chiral liquid crystal compounds having smectic mesophases or latent smectic mesophases, the compounds comprising (a) a chiral fluorochemical terminal portion comprising (i) at least one chiral center, which can optionally be heteroatom-substituted; (ii) a terminal fluoroalkyl, fluoroether, perfluoroalkyl, or perfluoroether group, wherein the fluoroalkyl and perfluoroalkyl groups are represented by the formula --C.sub.q F.sub.2q X', wherein q is at least about 5 and X' is hydrogen or fluorine; and (iii) an alkylene or fluoroalkylene group optionally containing at least one catenary ether oxygen atom; (b) a chiral or achiral terminal portion consisting of a hydrocarbon or hydrocarbon ether group and, when chiral, comprising at least one chiral center, which can optionally be heteroatom-substituted; and (c) a central core connecting said terminal portions; said alkylene or fluoroalkylene group of said chiral fluorochemical terminal portion having at least 3 in-chain atoms and being located between said chiral center of said chiral fluorochemical terminal portion and said central core.