Controlled Assembly of Dinuclear Metallorings into 1D Coordination Polymer and Mixed-metal Rare Earth Complexes with Red-to-Green Luminescence Properties

Novel rings connected by chains 1D coordination polymer of rare earth complex have been rationally synthesized by the reaction of Eu(NO3)3·6H2O and L, 1,4-bis{[(2ʹ-benzylaminoformyl)phenoxyl]methyl}benzene. The functional terminal groups (N-benzylsalicylamide) can activate both Eu3+ and Tb3+ to give out their characteristic lights and the mixed-metal complexes of different ratio of these metals have also been prepared. According to the principle of paints, these complexes give out red-togreen luminescence under UV light, so the complexes with yellow and orange luminescence properties have been realized.