Macrocyclic tetramers having columnar tridimensional mesophases

摘要

Macrocyclic tetramers, useful as components for opto-electronic displays or the like, have the formula:- CHEM wherein R is a C1-C3 alkyl group; and, the groups R1 are the same or different and each is a group of the formula: - @ - CnH2n+1 (II) (in which n is an integer of 10 or more), CHEM (in which m is an integer of 11 or more), or CHEM (in which p is an integer of 11 or more). r