Synthesis, crystal structure, thermal behavior and luminescence property of a cobalt(II) complex of pyridine-2, 6-dicarboxylic acid containing benzimidazole as auxiliary ligand

The new cobalt(II) complex [Co(pydca)(bim)(3)] (1) (where H-2 pydca = pyridine-2,6-dicarboxylic, bim = benzimidazole) has been synthesized and characterized by elemental analysis, Infrared spectroscopy, X-ray single crystal analysis, thermogravimetric and fluorescent analysis. Single crystal X-ray diffraction analysis reveals that the mononuclear complexes are linked by N-H center dot center dot center dot O hydrogen bonds. Fluorescent analysis reveals that complex 1 exhibits intense luminescence in ethanol solution at room temperature.