Abstract
Two new Cu(II) complexes, (1) (acpy-mdtc- = 2-acetylpyridine S-methyldithiocarbamate and = benzilic acid anion) and (2) (acpy- = 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 anion. For 1, each of the two copper atoms has different coordination environments. Cu1 adopts a five-coordinate square-pyramidal with a donor, while Cu2 exhibits a distorted octahedral geometry in a manner. For 2, two Cu(II) ions all have a five-coordinate square-pyramidal with a donor. In each complex, the Schiff base ligand is coordinated to copper ions as a tridentate thiol mode.
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