Synthesis, molecular structure and mesomorphic phase behavior of n1-benzylideneaniline palladium(II) complexes

Yong Sik Yoo, Jun Hwan Im, Bong Hwan Han, Myongsoo Lee, Moon Gun Choi

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7 Citations (Scopus)

Abstract

The synthesis and characterization of very stable Pd(II) n1-imine complexes of bis(3,4-dialkyloxybenzylidene3′,4′-dialkyloxyaniline) dichloropalladium(II) with alkyl chain of hexyl (8), octyl (9), decyl (10) and dodecyl (11) groups, and of bis(4-ethyloxybenzylidene-4′-ethyloxyaniline)dichloropalladium(II) as a model complex are described. The molecular structure with twisted board-like geometry of the complex resulting from the coordination of Pd(II) with n1-imine bonding was confirmed by X-ray crystallographic analysis of the model complex. In contrast to the imine ligands, all the complexes with an exception of 11 display a thermally stable monotropic smectic A mesophase without any decomposition of the complex. These results, characterized by a combination of differential scanning calorimetry, optical polarized microscopy, and powder X-ray scattering experiments, are discussed.

Original languageEnglish
Pages (from-to)1350-1360
Number of pages11
JournalBulletin of the Korean Chemical Society
Volume22
Issue number12
Publication statusPublished - 2001 Dec 20

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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