申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US05624601A1
公开(公告)日:1997-04-29
A silacyclohexane compound of the following formula (I) ##STR1## wherein R represents an organic residue; ##STR2## represents a trans-1-sila-1,4-cyclohexylene group or trans-4-sila-1,4-cyclohexylene group having a substituent of H, F, Cl or CH.sub.3 ; L.sub.1 represents F, L.sub.2 and L.sub.3 independently represent H, F, Cl or CH.sub.3 ; X represents an organic residue, F or Cl; and n is an integer of 0, 1, or 2 and a and b are, respectively, 0 or 1 provided that a+b=1. Silacyclohexane compounds are useful in liquid crystal compositions and also in liquid crystal devices.
以下是化学式(I)的硅环己烷化合物
其中R代表有机残基;
代表一个trans-1-硅-1,4-环己烯基团或trans-4-硅-1,4-环己烯基团,其具有H、F、Cl或CH.sub.3的取代基;L.sub.1代表F,L.sub.2和L.sub.3独立地代表H、F、Cl或CH.sub.3;X代表有机残基、F或Cl;n是0、1或2的整数,a和b分别是0或1,前提是a+b=1。硅环己烷化合物在液晶组合物和液晶器件中有用。