Liquid crystalline properties of bis(salicylaldiminato)copper(II) complexes: the first columnar discotics derived from salicylaldimine Schiff bases
作者:Chung K. Lai、Chung-hsiung Chang、Chun-hsien Tsai
DOI:10.1039/a707091h
日期:——
The synthesis and mesomorphic properties of a homologous series ofN-(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.
报道了一组N-(2-羟基-4-正烷氧基苯亚甲基)-3′,4′-二-正烷氧基苯胺及其铜(II)配合物双[(N-3′,4′-二烷氧基苯基)-4-正烷氧基水杨醛亚胺]铜(II)的合成与液晶性质。盘状铜配合物表现出无序的柱状六方相,通过差示扫描量热分析和偏光显微镜进行了表征。通过X射线粉末衍射(XRD)确定了其相结构。与其他类似的金属配位液晶双(水杨醛亚胺)铜(II)配合物相比,这些铜配合物的液晶性质与其分子结构差异有关。