Potentiometric investigation of Fe(III),Ni(II) and Cu(II) complexes of some isatin and thiophene isothiosemicarbazones

Abstract

The coordination compounds of isatin-thiosemicarbazone (L-1) and its S-benzylester (L-2), and of thiophene-2-aidehyde-thiosemicarbazone (L-3) and its S-benzylester (L-4.HCl) with Cu(II), Ni(II) and Fe(III) were investigated via potentiometric method.