| abstract |
The present invention relates to an aliphatic fluorocarbon terminal moiety comprising (a) a perfluorinated or partially fluorinated alkylene group and a terminal hydrocarbon alkyl group (these groups optionally contain one or more chain ether oxygen atoms): (b) Aliphatic hydrocarbon terminal portion: and (c) a chiral and achiral fluorine-containing liquid crystal compound comprising a central core connecting the terminal portions. These compounds have smectic mesophases or potential smectic mesophases and are useful, for example, in liquid crystal display devices. |