Synthesis and Fluorescence Properties of a New Eu(III) Complexes with β-Diketone Ligand

摘要

A novel P-diketone 4-[4-(Dibenzylamino)phenyl]-2,4-dioxobutanoic(DPD) and its corresponding Eu~(3+) complex with 1,10-phenanthroline were synthesized. The structure, thermal behaviour and fluorescence property of the complex was characterized by Fourier Transform Infrared (FT-IR), thermal gravimetric analysis (TGA) and fluorescence spectrophotometer. The fluorescence characterization shown that the addition of P-diketone and 1,10-phenanthroline enhance the fluorescence intensity of the complex. Eu~+ complex was considered to be a valuable organic light-emitting material with bright red fluorescence because of its strong emission band. Furthermore, the thermal stability characterization shows that the obtained rare earth p-diketone complexes have good thermostability.