Abstract
Liquid-crystalline compounds containing metal atoms such as palladium, copper, and boron are reviewed in terms of their structural features and properties. Most of metallo-mesogens have rod-like or disk-like structures. The former exhibits nematic and/or smectic mesophases and the latter discotic mesophases with stabilities depending on the molecular structure. In particular, detailed investigations on the properties of 1, 3, 2-dioxaborinane derivatives, which from nematic, smectic A, and chiral smectic C phases, are described on the basis of their molecular structures.
