Novel silacyclohexane compounds, preparation thereof, liquid crystal compositions comprising the same, and liquid crystal devices comprising the composition
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:EP0742222A2
公开(公告)日:1996-11-13
A compound of formula (I)
wherein R is an organic residue.
is an unsubstituted or substituted silicon-containing cyclohexylene group or a 1,4-cyclohexylene group,
is an unsubstituted or substituted phenylene, an unsubstituted or substituted silicon-containing cyclohexylene group or trans-4-sila-1,4-cyclohexylene group, or a 1,4-cyclohexylene group provided that at least one of the ring structures A and B represents a silicon-containing cyclohexylene group, m, n, j, k and l are each H or F, m and n are each 0 or 1, X1 and Y are each H, F or Cl, and X2 is F or Cl, a liquid crystal composition comprising the compound and a liquid crystal device comprising the composition are described.
式 (I) 的化合物
其中 R 是有机残基
是未取代或取代的含硅环己烷基团或 1,4-环己烷基团、
是未取代或取代的苯基、未取代或取代的含硅环己烷基团或反式-4-硅杂-1,4-环己烯基团或 1,4-环己烯基团,条件是环结构 A 和 B 中至少有一个代表含硅环己烷基团、m、n、j、k 和 l 各为 H 或 F,m 和 n 各为 0 或 1,X1 和 Y 各为 H、F 或 Cl,X2 为 F 或 Cl,描述了包含该化合物的液晶组合物和包含该组合物的液晶装置。