Synthesis and Crystal Structures of Copper(II) Complexes with Schiff Base Ligands: [Cu2(acpy-mdtc)2(HBA)(ClO4)]·H2O and [Cu2(acpy-phtsc)2(HBA)]·ClO4

Bulletin of the Korean chemical society

Bon Kweon Koo¹ 

关键词: Dinuclear Cu(II)-complexes;    Schiff base;    Benzilic acid;    Crystal structures;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Two new Cu(II) complexes, [Cu2(acpy-mdtc)2(HBA)(ClO4)]·H2O (1) (acpy-mdtc− = 2-acetylpyridine Smethyldithiocarbamate and HBA− = benzilic acid anion) and [Cu2(acpy-phtsc)2(HBA)]·ClO4 (2) (acpy-phtsc− = 2-acetylpyridine 4-phenyl-3-thiosemicarbazate) have been synthesized and characterized by elemental analysis, infrared spectroscopy, thermogravimetric analysis, and single crystal X-ray diffraction. The X-ray analysis reveals that the structures of 1 and 2 are dinuclear copper(II) complexes bridged by two thiolate sulfur atoms of Schiff base ligand and bidentate bridging HBA− anion. For 1, each of the two copper atoms has different coordination environments. Cu1 adopts a five-coordinate square-pyramidal with a N2OS2 donor, while Cu2 exhibits a distorted octahedral geometry in a N2O2S2 manner. For 2, two Cu(II) ions all have a fivecoordinate square-pyramidal with a N2OS2 donor. In each complex, the Schiff base ligand is coordinated to copper ions as a tridentate thiol mode.

【 授权许可】

Unknown