Studies on Liquid Crystals of Phenanthrene Derivatives 2-(4-Acyloxybenzylideneamino)phenanthrenes

Abstract

2-(4-Acyloxyberizylideneamino)phenanthrenes and 2-(4-acyloxybenzyliden eamino)-9, 10-dihydrophenanthrenes were synthesized and their liquid crystalline behavier were examined. Both substances have a wide mesomorphic range and the mesophase of the former was thermally more stable than that of the latter. The results are shown in Fig.2 and Table 3, 4.