Synthesis and Antibacterial Activity of Complexes of 2, 2-Dipyridyldisulphide with ND(III) and TB(III) Metals

Kavita L. Kendre, Girish Pande

Abstract: The Nd (III) and Tb (III) complexes of 2, 2'-dipyridyldisulphide have been synthesized in alcohol and refluxed in the reaction medium (1:2, M: L ratio). The yield percentage of formed complex is ranging from 80-90%. The complexes are colored solids. The complexes were synthesized and characterized by elemental analysis, IR, electronic spectra, molar conductance, TGA, and powder XRD. An IR spectrum indicates that the ligands behaves as bidentate ligand. Molar conductance studies indicates an electrolytic behavior of these complexes. Thermal decomposition profiles are consistent with the proposed formulations. The powder XRD studies show that all the complexes are amorphous in nature. The antimicrobial activities of the ligand and their metal complexes were screened by agar diffusion method and found that the metal complexes have higher antimicrobial activity than the free ligand.

Keywords: 2, 2'-dipyridyldisulphide, inner transition metals, antimicrobial activity