Synthesis, characterization and structural studies on-metal complexes derived from benzofuran thiosemicarbazide ligands

Abstract

The complexes of the type MLXn, where M = Co(II), Cu(II), Ni(II), Cd(II), Hg(II), Zn(II), UO2(VI) and Th(IV); X= Cl/NO3, n = 2/4, and L is the thiosemicarbazide ligand derived from reaction between benzofuran-2-carboxyhydrazide and phenylisothiocyanate (BCPT)/p-chlorophenylisothiocyanate (BCClPT). All the complexes isolated in solid state, are stable in air and characterized by the elemental analysis, IR, electronic spectral data, magnetic moment and conductance measurement studies. Thiosemicarbazide ligands behave as bidentate by coordinating through oxygen of carbonyl group and nitrogen of hydrazine residue. The probable structure for all the metal, complexes is also proposed here. The thiosemicarbazide ligands and their metal complexes have been screened, for their antimicrobial activity.