铕掺杂配合物的合成及其荧光性质研究

Synthesis and Photoluminescence Properties of Europium-Doped Complexes

采用稀土掺杂的方法以Zn^2＋与Eu^3＋、配体对氯苯甲酸（CBA）、邻菲罗啉（Phen）合成铕掺杂配合物铕-锌-对氯苯甲酸-邻菲罗啉（Eu-Zn-CBA-Phen）。经元素分析,推测其组成为：Eu1-xZnx（CBA）3-xPhen·H2O（x=0-0.8）。红外光谱分析证实,铕与配体发生配位,而紫外与荧光光谱分析表明,随着Zn^2＋取代配合物中部分Eu^3＋,配合物的荧光强度明显增加,当掺杂Zn^2＋与Eu^3＋摩尔分数比为2∶3时,荧光强度达到最大值。同时还系统地考察了非稀土金属离子的加入对配合物荧光性能的影响和荧光增强机理。

In tiffs investigation, the complexes of Eu - Zn - CBA - Phen have been prepared by the method of doping, which Eu^3 ＋ reacted with non - rare earth metal ion Zn^2 ＋ , p - chlorobenzoie acid and phenanthroline. Their elemental analysis indicates that tbe complexes have the composition of Eu1-xZnx（ CBA）3-xPhen·H2O（x = 0 - 0.8）. The IR spectra prove the Eu^3＋ has coordinated ,with the hgands. Their UV and fluorescence spectra show that the fluorescence of complexes increased as the adding of Zn into them. The fluorescence intensity of complexes reaches the largest when the mole ratio of Zn^2＋ to Eu^3＋ is 2：3. Moreover, the fluorescent properties and mechanism of fluorescence enhancement of complexes, after doping the non - rare earth metal ion, have also been researched.