Luminescent Eu(III) coordination polymer cross-linked with Zn(II) complexes

Abstract

A structural design of new luminescent lanthanide coordination polymers composed of Eu3+ complex and Zn2+ complexes are introduced. The Eu3+ coordination polymer [Eu(hfa)3(dppy)2ZnCl2]n (Eu–Zn) (hfa: hexafluoroacetylacetonato, dppy: 4-pyridyldiphenylphosphane oxide) were synthesized by the complexation of Eu(hfa)3(H2O)2 with ZnCl2(dppy)2. The structure was characterized using XRD and TG-DTA. The photophysical properties were estimated using the emission spectra, the emission lifetimes, and the emission quantum yields. The emission quantum yields are larger then that of precursor Eu(hfa)3(H2O)2. The emission quantum yield of Eu–Zn was found to be 59%. The preparations, structures and photophysical properties of Eu–Zn are demonstrated as a new luminescent Eu3+ coordination polymer for the first time.