Synthesis and Spectral Studies of Lanthanide Metal Complexes of Furfural Isonicotinoylhydrazone

Abstract

Abstract Furfural isonicotinoylhydrazone (FINH)has been synthesised, characterized by IR, 1H and 13C NMR and mass spectral studies, and its complexes of the type [Ln(FINH)2 Cl3], where Ln=La(III), Ce(III), Pr(III), Nd(III), Sm(III), Eu(III), Gd(III), Tb(III), Dy(III) and Y(III), have been synthesized and subjected to elemental analysis, molar conductance, magnetic susceptibility, electronic, infrared, 1H and 13C NMR spectral tectniques. The parameters, β b½, 3(%) and η calculated from the absorption spectra of Nd(III) and Pr(III) complexes suggest a weak covalent bond formation between these metal ions and the ligand. Infrared and NMR spectral data suggest, a neutral bidentate nature of FINH in the complexes. The absorption spectral profile suggests a seven-coordination number around the Nd(III) ion in the complex.