Polarized FTIR spectra investigation of the metallo-organic copper (II) and nickel (II) compounds

Abstract

Was synthesized two copper (II) complexes and one nickel complex of N-benzylidene-aniline derivatives and their ligands. We have performed polarized FTIR spectroscopy and X-ray diffraction measurements in wide temperature range (0-220°C) in order to establish correlation's among molecular, crystal and mesophase structures. We provided comparison of the FTIR and X-ray diffractometry results between well known metallo-organic copper (II) complexes, which crystallizes in the monoclinic space group C2/c, with similar nickel complex. Investigated ligands and their metallo-mesogens are displaying the same sequence of the liquid crystalline phases -- only with higher melting temperature for metallo-complexes.