Discotic liquid crystals of organocopper complexes: the substituent effects

Abstract

It was found that the bis(β-diketonato)copper(II) complexes (2a,b) have discotic mesophases: (2a), D₁ : 76.1–117.2 °C, D₂; 117.2–141.6 °C and (2b), D: 82.5–173.3 °C, and that the corresponding β-diketone ligands (1a,b) have classical mesophases: (1a), smectic: 28.5–60.7 °C and (1b), smectic: 72.3–83.6 °C.