Pyrazolate “Golden” Rings: Trinuclear Complexes That Form Columnar Mesophases at Room Temperature

Abstract

Trinuclear gold(I) pyrazolate complexes of type 1 show liquid crystalline phases at room temperature. The molecules are arranged in a hexagonal columnar structure. The mesogenic behavior of these compounds is strongly related to the molecular symmetry, which is determined by the substituents R and R′. R = 3,4-(H21C10O)2C6H3, R′ = R, 3,4,5-(H21C10O)3C6H2.