Synthesis and characterization of Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cr(III), Fe(III), Ru(III) and Rh(III) complexes with 1,1- (2,6-pyrimidyl) bisbenzothiazole-2-thione

Abstract

Metal complexes with I, 1-(2,6-pyrimidyl)bisbenzothiazole- 2-thione (PBT) of the type M(PBT)₂CI₂ M'₂ (PBT)₂CI₆ where Mh= Mn(II), Co(II), Ni(II), Cu(lI) and Zn(lI) and M' = Cr(lll), Fe(III), Ru(III) and Rh(III) have been synthesized and characterized by elemental analysis, magnetic susceptibility, IR, lH NMR and electronic spectral studies. The results reveal that the ligand is coordinating through pyrimidine N- and thiocarbonyl S- atoms of the mercaptobenzothiazolyl group. The M(PBT)₂CI₂.complexes appear to be octahedral whereas M'2(PBT)₂CI₆ complexes are proposed to have a chlorine-bridged dimeric octahedral structure.