In recent years, the study of metal complexes on antibacterial, antitumor and with DNA interaction have played importment role in the bioinorganic chemistry .On the biological properties of RE~(3+), twenty-five earth complexes with heterocyclic compounds and other ligands were synthesized by reflux condensation method and low temperature solid phase method.Their composition and structure werecharacterized by elemental analysis, molar conductance, IR, UV, 1HNMR, XRD and TEM etc. The stability of heat was pro...