Synthesis, Spectral and Thermal Studies of Zinc(II) and Mercury(II)Complexes with Bidentate Schiff-Base Ligand (234-MeO-Ba)2En:the Crystal Structure of Zn(234=MeO-Ba)2En)I2

摘要

New Symmetric bidentate Schiff-base ligands N,N'-bis(2,3,4-trimethoxybenzylidene)-1,2-di-aminoethane, (234-MeO-Ba)2En, and its corresponding zinc(II) and mercury(II) complexes, Zn((234-MeO-Ba)2En)I2 (I), Hg((234-MeO-Ba)2En)Cl2 (II) have been synthesized and characterized by elemental analyses (CHN), FT-IR and ~1H NMR spectroscopy. The thermal behaviors of complexes were study using thermogravimetry in order to evaluate their thermal stability and thermal decomposition pathways. The crystal structure of I was determined from single-crystal X-ray diffraction. The coordination polyhedron about the zinc(II) center in complex I is best described as a distorted tetrahedron.