Synthesis and characterization of metal complexes with a schiff base formed by condensation of S-benzyl dithiocarbazate with isatin (H₂IBD)

Abstract

Synthesis and characterization of Mn(II), Co(II), Ni(II)., Zn(II), Cd(II), Hg(II) and UO<img src='http://www.niscair.res.in/jinfo/twoplustwo.gif' border=0> complexes of isatin- hydrazone-S-benzyldithiocarbazate (H₂IBD) are reported. Elemental analysis, molar conductance, magnetic moment and spectral (IR, visible, NMR) data have been used to characterize the complexes. IR spectral data show that the ligand behaves in a bidentate, tridentate or tetradentate manner in different complexes. An octahedral structure is proposed for the Mn(II), Co(II) and Ni(II) complexes while a square-planar structure is proposed for Cu(II)complexes on the basis of magnetic and spectral measurements.