Novel silacyclohexane compounds, preparation thereof, liquid crystal compositions comprising the same, and liquid crystal devices comprising the compositions
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:EP0727428A1
公开(公告)日:1996-08-21
The invention relates to a silacyclohexane compound of the following formula (I) or (II) which is useful as a liquid crystal
wherein R is an organic residue,
one of
which may be the same or different, is a trans-1-sila-1,4-cyclohexylene or trans-4-sila-1,4-cyclohexylene group which is substituted on the silicon atom by H, F, Cl or CH3, and the other is a trans-1,4-cyclohexylene group, or a trans-1-sila-1,4-cyclohexylene or trans-4-sila-1,4-cyclohexylene group as defined above, n is 0 or 1, L1 is H or F, L2 is H, F or Cl, and Z is CN, F, Cl or an organic residue.
Processes for producing the compounds (I) and (II) are described, along with liquid crystal compositions comprising the compounds and liquid crystal devices comprising the compositions.
本发明涉及一种可用作
液晶的下式(I)或(II)的
硅环己烷化合物
其中 R 是有机残留物、
其中之一
其中一个可以相同或不同,是
硅原子上被 H、F、Cl 或
CH3 取代的反式-1-
硅杂-1,4-
环己烯或反式-4-
硅杂-1,4-
环己烯基团,另一个是反式-1、4-
环己烯基团,或如上定义的反式-1-西拉-1,4-
环己烯或反式-4-西拉-1,4-
环己烯基团,n 为 0 或 1,L1 为 H 或 F,
L2 为 H、F 或 Cl,Z 为 CN、F、Cl 或有机残基。
本文介绍了化合物(I)和(II)的生产工艺,以及包含这些化合物的
液晶组合物和包含这些组合物的
液晶器件。