Triphenylene-ethylammonium tetrachlorometallate salts: multicolumnar mesophases, thermochromism and Langmuir films

Abstract

This study reports mesomorphic triphenylene-ethylammonium salts containing [MCl 4 ] 2− (M = Cu, Ni, Co, Mn) as counterion. The [NiCl 4 ] 2− group leads to combine mesomorphism, paramagnetism and thermochromism in the system.