The synthesis and mesomorphic properties of a homologous series of N-(2-hydroxy-4-n-alkoxybenzylidene)-3',4'-di-n-alkoxylanilines and their copper(II) complexes bis [(N-3',4'-dialkoxyphenyl)-4-n-alkoxylsalicylaldiminato]copper(II) are reported. The disc-like copper complexes exhibited columnar hexagonal disordered mesophases, which were characterized by DSC analysis and optical polarized microscopy. The structure of the mesophases was confirmed by X-ray powder diffraction (XRD). The mesomorphic properties for these copper complexes were compared with other similar metallomesogenic bis(salicylaldiminato)copper(II) complexes in terms of molecular structural differences.
