Synthesis, Characterization and Biological Activity of Rare Earth Complexes with Acylpyrazolone and o-Phenanthroline

New solid ternary complexes of rare earth with o-phenanthroline(Phen) and 1-Phenyl-3-methyl-4-benzoyl-5-pyrazolone(HPMBP) were synthesized in ethanol solution. The complexes were characterized by elemental analysis,molar conductance,MALDI-MS, 1H NMR, IR,Raman, UV-Vis,TG-DTA, TEM. The compositions of the complexes were confirmed to be RE(PMBP)3Phen (RE= Sm3+,Eu3+,Y3+,Er3+,Gd3+). The antibacterial activities testing indicates that all these solid ternary complexes have antibacterial ability against Escherich coli,Staphy lococcus aureus,Candida albican. The antimicrobial spectrum of the complexes is broad. The cancer cells were withered by the complex as shown by MTT study.