Synthesis and characterization of a new dioxime and its Cu(II), Ni(II), Co(II) complexes

(2E,3E,10E,12E)-3,11-dimethyl-5,9-dioxa-4,10-diazatrideca-3,10-diene-2,12-dione dioxime and its Cu(II), Ni(II) and Co(II) complexes were synthesized and characterized by a combination of 13C-, 1H-NMR, IR, UV-Vis, mass spectral studies and magnetic moments. Ligand and its metal complexes were performed antimicrobial activity test. The crystal structure of the Co(II) complex was determined by single crystal X-ray diffraction technique. The geometries of the metal chelates were discussed by means of magnetic and spectroscopic measurements. I.R. spectra show that the ligands act in a tetradentate manner and coordinates.Key Words: Mononuclear copper(II), nickel(II) and cobalt(II) complexes, Dioxime, Antimicrobial activity