Synthesis,Characterization and Antibacterial Studies of Transition Metal Complexes of Mannich Base

摘要

A new series of complexes of Fe(III),Co(II),Ni(II),Cu(I),Zn(II),Hg(II),Pb(II)and Ag(I)with 3-morpholinomethyl-5-(P-naphthoxy)-methyl-l,3,4-oxadia-2-thione have been synthesized.Characterization of these complexes was carried out by elemental analyses,magnetic susceptibility measurements,thermogravimetric,UV-Vis,IR and !H NMR spectral studies.Though the ligand is potentially polydentate,in the complexes studied,it behaves as a monodentate ligand-bonding either through N(4)of the oxadiazole moitey or through S of the thione group-or as a bidentate bridging ligand.Tetrahedral structures for Fe(III),Co(II),Ni(II),Cu(I),Zn(II),Hg(II)and Pb(II)complexes,tetrahedral polymeric structure for Cd(II)and linear structure for Ag(I)complex have been proposed.Antibacterial studies of the ligand and Fe(III),Co(II),Cu(I)and Zn(II)complexes were also carried out.