Yttrium(III), Cerium(III) and Lanthanum(III) Complexes of Salicylideneamino Acids. Synthesis, Characterization and Potentiometric Studies

New complexes of Y(III). Ce(III) and La(III) with Schiff bases derived from the condensation reaction of salicylaldehyde with DL-glycine, DL-alanine and DL-aline have been synthesized and characterized by elemental analyses, molar conductivities. magnetic moments. infrared. 1H NMR. electronic spectral data. and thermal analyses. The protonation constants of the Schiff bases and stability constants of their MI, -type complexes have been determined potentiometrically at 25±0.1 °C and μ = 0.1 M KCl in aqueous solutions.