An optically active mesomorphic compound is represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 are respectively an alkyl group having 1 to 16 carbon atoms, and C* denotes an asymmetric carbon atom. The mesomorphic compound has a fluorine atom directly connected to the asymmetric carbon atom and is effectively used as a liquid crystal component providing an increased spontaneous polarization and an improved responsiveness.
具有光学活性的中间相化合物由以下公式(I)表示:##STR1## 其中,R.sub.1和R.sub.2分别是具有1至16个碳原子的烷基基团,C*表示不对称碳原子。该中间相化合物具有直接连接不对称碳原子的
氟原子,并且可有效用作液晶组分,提供增加的自发极化和改善的响应性。