Synthesis, Spectral and Magnetic Investigation of 4-(2-pyridyl)-1-salicylaldehyde-3-thiosemicarbazone

Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Hg(II), Pd(II) and dioxouranium(VI), (UO:2 2 +), complexes of 4-(2-pyridyl)-1-salicyldehyde-3-thiosemicarbazone (H2SBT) have been synthesized and characterised by elemental analyses, molar conductance, spectral (IR, visible and NMR) and magnetic moment measurement. IR spectral data show that the ligand behaves in a bi-, tri- and/or tetradentatc manner. An octahedral structure is proposed for Cr(HSBT)2Cl.H2O. Mn(HSBT)2, Fe(HSBT)Cl2·H2O, Ni(SBT)·2H2O and Co(HSBT)2Cl·H2O, while a square-planar structure is found for Ni(H2SBT)2Cl2·2H2O, Pd(HSBT)2, Cu3(HSBT)2Cl·2H2O and Cu2(SBT)(OAc)2·2H2O.