Phase Transitions in Some Classes of Chiral Mesogens
Hsu, Y.Y. and David Dolphin
Mol. Cryst. Liq. Cryst.
The phase transitions for three series of optically active mesogens, (R)-4-cyanobenzylidene-4’-methylalkylanilines, (R)-4-(2-methylbutyl)phenyl-4’-alkoxybenzoates, and (R)-4-(2-methylbutyl)- 4’-alkoxyazobenzenes, are reported. The presence of a Me group, e.g., in p-(EtCHRCH2)C6H4N:NC6H4OMe (I, R = Me) as compared to I (R = H), depressed the mp. and clearing pt.