Synthesis, Characterization and Physico-chemical Studies of Schiff-base Complexes of Praseodymium and Neodymium

摘要

Complexes of praseodymium (III) and neodymium (III) ions with schiff-base camphor and 4-aminobenzoic acid (BA) and their mixed ligand complexes have been prepared and characterized by molar conductance, molar mass determination and spectral studies. The complexes are found of the type Ln(ClO4)3(BA)3, Ln(ClO4)3(BA)2DMSO, where Ln = Pr and Nd. Molar conductance studies showed the non-electrolytic behaviour of the complexes. Molar masses of the complexes are in agreement with the structures of the complexes. Infrared spectral studies revealed that BA acts as a neutral monodentate ligand and the perchlorate ions are coordinated to the metal ions in a unidentate fashion. A coordination number of six is suggested for perchlorate complexes.