铕/钬-苯甲酸-邻菲罗啉混合稀土配合物的合成与表征及荧光性质  

Synthesis,Characterization and Fluorescence Properties of Eu_x-Ho_((1-x))(BA)_3Phen Mixed Complexes

作　　者：杨秀利[1] 张琦[2] 王建军[1] 刘秀娟[1] 

机构地区：[1]济南大学化学化工学院,山东济南250022 [2]山东教育学院化学化工系,山东济南250013

出　　处：《青岛科技大学学报（自然科学版）》2009年第5期381-383,共3页Journal of Qingdao University of Science and Technology:Natural Science Edition

摘　　要：在无水乙醇溶液中合成了铕/钬-苯甲酸(BA)-邻菲罗啉(Phen)混合稀土配合物,通过元素分析、红外光谱、摩尔电导等实验,确定配合物化学组成为RE(BA)3Phen(RE=Eu3+/Ho3+)。在310 nm紫外光激发下,研究了稀土配合物的荧光光谱。结果表明,铕和钬之间存在相互作用,钬对铕具有显著的敏化作用,这些混合配合物可以发出强度更高的红色荧光。当配合物中铕与钬物质的量之比为1∶1时,其荧光发射强度约为未引入钬时的2.2倍。The mixed RE complexes of Eu^3＋-Ho^3＋- phenanthroline-benzoic acid were synthesized in anhydrous ethanol. The composition of the RE complex was determined to be RE（BA）3Phen（RE=Eu^3＋/Ho^3＋ ）by elemental analysis, IR and molar conductivity. The fluorescence characteristics of mixed complexes were investigated under 310 nm UV-light. The results showed that there was intensive interaction between europium ion and holmium ion, and the fluorescence emission intensity of europium ion was greatly sensitized by holmium ion. The red fluorescence of europium ion was emitted intensively in the mixed complexes. The fluorescence intensity of the complex in which n（Eu^3＋ ） ： n（Ho^3＋ ）=1 ： 1 was 2.2 times of the complex without Ho^3＋.

关 键 词：稀土 荧光 邻菲罗啉 铕 钬 

分 类 号：O614.33[理学—无机化学]