A naphthalene compound of formula (I) and a liquid crystal composition containing the same:
wherein X represents hydrogen or halogen, Y and Z independently represent a monovalent group selected from:
wherein W represents hydrogen or halogen, R represents an alkyl group having 6 to 18 carbon atoms, provided that at least one of Y and Z represents the optically active alkyl group of formula (II):
-(CH₂)n-*H-(CH₂)m-CH₃ (II)
wherein A is alkyl, alkoxy, halogen or fluoroalkyl, n is an integer of 0 to 3, m is an integer of 3 to 6, and *C represents an asymmetric carbon.
一种式(I)的
萘化合物和含有该化合物的液晶组合物:
其中 X 代表氢或卤素,Y 和 Z 独立地代表选自下列各项的单价基团
其中 W 代表氢或卤素,R 代表具有 6 至 18 个碳原子的烷基,条件是 Y 和 Z 中至少有一个代表式(II)的光学活性烷基:
-(CH₂)n-*H-(CH₂)m-CH₃ (II)
其中 A 是烷基、烷氧基、卤素或氟烷基,n 是 0 至 3 的整数,m 是 3 至 6 的整数,*C 代表不对称碳。