Liquid crystalline properties of bis (salicylaldiminato) copper (II) complexes: The first columnar discotics derived from salicylaldimine Schiff bases

Chung K. Lai, Chung Hsiung Chang, Chun Hsien Tsai

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Abstract

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.

Original languageEnglish
Pages (from-to)599-602
Number of pages4
JournalJournal of Materials Chemistry
Volume8
Issue number3
DOIs
StatePublished - 1998

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