Synthesis and Characterization of Lanthanum(III) Complexes of Schiff Base Derived from Pyridine-2-Carboxaldehyde and Benzidine

Abstract

Complexes of trivalent lanthanum with Schiff base derived from pyridine-2-carboxaldehyde and benzidine have been synthesized and characterized. The IR spectrum shows that the ligand bis(pyridine-2-carboxaldehyde)benzidine acts as a bidentate ligand. The thermal analyses prove the presence of two coordinated water molecules. The complexes have been assigned the general formula [La{(P₂CA)₂B}(H₂O)₂X₃].