Synthesis, characterization and thermal behaviour of ortho-metallated Pd(II) complexes containing N-benzoylthiourea derivatives

The synthesis and characterization (elemental analysis, H-1 and C-13 NMR spectroscopy and single crystal X-ray diffraction) of the first ortho-metallated Pd(II) complexes containing N-benzoyl thiourea ligands are described. Four of these compounds showed liquid crystal properties which were investigated by mean of DSC and polarised light microscopy and their mesogenic properties are compared to those of ortho-metallated imine Pd(II) complexes with other types of co-ligands. (C) 2008 Elsevier Ltd. All rights reserved.