| abstract |
A mesomorphic compound represented by the following formula (I): ##STR1## wherein R 1 and R 2 respectively denote an alkyl group having 1-16 carbon atoms capable of having a substituent; X 1 , X 2 and X 3 respectively denote a single bond, --O--, ##STR2## A 1 and A 2 respectively ##STR3## wherein X 4 and X 5 respectively denote hydrogen, fluorine, chlorine, bromine, --CH 3 , --CN or --CF 3 with proviso that X 1 always denotes a single bond when A 1 denotes a single bond; and n is 0 or 1. |