稀土三元配合物的合成、结构表征及荧光性能研究

Synthesis,Characterization of Structure and Fluorescence Property of Rare Earth Ternary Complex

合成了铈-草酸-丙烯酸三元固体配合物。利用元素分析、红外光谱(FT-IR)、紫外-可见光谱(UV-Vis)、热重分析(TGA)和荧光光谱等手段研究了配合物的结构和性质。结果表明配合物的组成为[Ce(OOC-COO)(CH2=CH-COO)].3H2O,荧光光谱表明,配合物中的有机配体能够有效地把吸收的能量传递给中心Ce3+离子,强烈敏化Ce3+发光,且发射谱线很窄,主发射峰为Ce3+的5d→2F7/2跃迁,这对寻找新型稀土配合物发光材料和制备有机电致发光器件具有一定的价值。

The novel ternary solid complex of rare earth with oxalic acid and acrolic acid was synthesized. The chemical structure and properties of the complex was characterized by using the element analysis, FT-IR, UV-Vis spectroscopy, thermal gravimetric analysis （TGA） and fluorescence spectroscopy. Their composition was determined to be [ Ce （OOC - COO） （CH2 = CH - COO）]· 3H2O. Photoluminescence measurement indicated that the organic ligand of complexcould Ce^3 ＋ sions transfer the energy effectively to the central and intensely sensitize the characteristic emisappeared due to the 5d→^2F7/2 transition of the 4f electrons of the central Ce^3 ＋ ions. The synthesized Ce （ Ⅲ ） ternary complex was an excellent emitter with an electron-transporting group, and would be considered as a candidate material for fabrication of organic lightemitting devices.