Synthesis and Characterization of Ternary Complexes of Rare Earth with N-(2-hydroxybenzyl)-DL-α-phenylalanine and 1,10-Phenanthroline

Four new complexes of rare earth chloride with N-(2-hydroxybenzyl)-DL-α-phenylalanine and 1,10-phenanthroline have been synthesized in a mixed solution.The compositions of complexes have been studied by elemental analysis,molar conductance,IR spectra,UV spectra,thermogravimetric and differential thermal analysis.It is concluded that general formula of the four complexes are [RE(sphe)(phen)2] Cl·3H2O(RE = La,Nd,Sm,Gd,sphe=N-(2-hydroxybenzyl)-DL-α-phenylalaninate,phen = 1,10-phenanthroline).Antibacterial activity of the complexes has been studied.