Synthesis,characterization and antibacterial properties of the rare earth complexes with schiff base and o-phenanthroline

Three ternary complexes of the rare earth ions(Pr3+,Nd3+,Er3+) with o-Phenanthroline and Schiff base condensated with salicylaldehyde and L-Phenylalanine,were synthesized in ethanol solution,and characterized by elemental analysis,molar conductance,infrared spectroscopy,ultraviolet spectroscopy,thermal gravity and differential thermal analysis.The formulas of the complexes were confirmed to be RE(L)(Phen) Cl(H2O)(RE= Pr3+,Nd3+,Er3+;L= Schiff base which was condensated with salicylaldehyde and L-Phenylalanine).The antibacterial activity testing showed that all these complexes exhibited hroacantimicrobial spectra and excellent antibacterial ability against Escherichia coli and Staphylococcus aureus.