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。