Synthesis and Liquid-Crystal Properties of Di(arylethynyl)bis(triethylphosphine)platinum(II)

Abstract

Abstract The title complexes containing platinum-carbon [sgrave]-bonds and triethylphosphine ligands were synthesized and their thermal properties were examined. The complexes composed of a four-ring system showed enantiotropic nematic phases, though they have a very large lateral group. Direction of the ester group of the complexes strongly influenced the thermal stability of mesophases.