Synthesis and characterization of Ni(II), Pd(II), Pt(II) complexes of A/-allyl-AT-(4-methylthiazol-2-yl)thiourea

Metal complexes of Ni(II), Pd(II), and Pt(II) with N-allyl-N-(4ʹ-methylthiazol-2-yl)thiourea (HL) were prepared and characterized by elemental analyses, magnetic susceptibilities, IR, NMR electronic and mass spectral measurements. The IR spectra indicate that HL acts as bidentate ligand coordinating via the endocyclic iminen-N thione- or thiol-S atoms. The 1H and 13C NMR chemical shifts reveal coordination of endocyclic-imine-N and thiourea-S atoms to the metals. The magnetic moments and electronic spectral data suggest a square- planar for ML2 (M = Ni(II), Pd(II) and Pt(II)), [Pd(L)(OAc)(H2O)] and [Pd(HL)Cl2].