Luminescence of fusion materials of polymeric chain-structured lanthanide complexes

Abstract

Polymeric chain-structured complexes were prepared with helical lanthanide complexes (LnL; Ln=Eu III, Tb III, Gd III) and benzene-dicarboxylate derivatives (benzene-1,4-dicarboxylate (bdc), 2-aminoterephtalate (atpa) and 2-hydoloxyterephtalate (htpa)), which show some noteworthy physicochemical properties, photoluminescence and thermal stabilities. The complex EuL-bdc shows bright luminescence originating from Eu III by UV excitation. The emission color can be tuned by mixing with TbL. The structures of these chain complexes were clarified with synchrotron X-ray powder diffraction measurements. The derivation of the linker moiety (bdc, atpa or htpa) was found to affect the intermetal energy transfer from Tb III to Eu III.