TRANSITION-METAL COMPLEXES OF 1-(3-HYDROXY-2-NAPHTHOYL)-4-PHENYL-3-THIOSEMICARBAZIDE

The synthesis and characterization of Cr(III), Fe(III), Mn(II) Co(II), Ni(II), Pd(II), Cu(II), Zn(II), Cd(II) and UO22+ complexes of 1-(3-hydroxy-2-naphthoyl)-4-phenyl-3-thiosemicarbazide (H2NPTS) are reported. IR and NMR spectral data show that the ligand behaves in a tridentate and/or tetradentate manner. An octahedral structure is proposed for the Cr(III), Fe(III), Mn(II), Co(HNPTS)2 and Co(HNPTS)OAc complexes; a square planar structure for the Ni(II), Pd(II) and Cu(II) complexes; and a tetrahedral structure for Co(NPTS) complex.