Synthesis and Spectroscopic Studies of Co(II), Ni(II) and Cu(II) Complexes of Bidentate Schiff Base having N and Sulphur Containing Donor Site

A series of complexes having the formulae [M(MTQS) z X z ], where M = Co(II), Ni(II) and Cu(II), MTQS = 2-methyl thioquinazoline – 4 (3H) semicarbazone, X = Cl-, Br-, I or NO 3 the ligand as well as metal complexes have been characterized by elemental analysis, magnetic susceptibility, molar conductance, electronic spectra and infrared spectra. On the basis of these studies the complexes of Co(II) and Ni(II) are reported to be octahedral geometry whereas Cu(II) complexes are imposed to be distorted octahedral in geometry. The complexes exhibit enhanced antifungal activity as compared to parent ligand.