Synthesis and crystal structure of new cobalt(II) and copper(II) complexes with deprotonated N-[2′-(4-methyl) pyrimidinyl]-2-nitrobenzenesulfonylurea

Abstract

Cobalt(II) and copper(II) complexes with deprotonated N-[2′-(4-methyl)pyrimidinyl]-2-nitrobenzenesulfonylurea were synthesized and their structures were characterized by IR spectrum, elemental analysis and X-ray diffraction. The deprotonated sulfonylurea is a bidentate ligand to Co(II) or Cu(II) in octahedral geometry. In the packing diagrams of the complexes, C–H ··· O hydrogen bonds are observed. The UV and fluorescence spectra of the complexes are described, and the thermogravimetric analyses of the complexes were performed.

Keywords:

• Cobalt(II)
• Copper(II)
• Sulfonylurea
• Crystal structure

Acknowledgements

This work was financially supported by the National Science Foundation of China (Project Grant No. 20672081) and the Natural Science Foundation of Tianjin (07JCYBJC00300).