二元、三元二苯甲酰甲烷铕配合物的荧光研究  

Investigation of luminescence of the binary and ternary complexes of europium (Ⅲ) with dibenzoylmethide

作　　者：赵凤英[1] 薛珍[1] 赵永亮[2] 

机构地区：[1]内蒙古农业大学基础部,呼和浩特010019 [2]北京大学稀土材料化学及应用国家重点实验室

出　　处：《化学试剂》2002年第5期257-259,共3页Chemical Reagents

基　　金：国家自然科学基金资助项目 ( 2 0 0 6 10 0 2 )

摘　　要：以发光的三价铕离子为中心体 ,二苯甲酰甲烷 ( DBM)、邻菲罗啉 ( Phen)和 2 ,2′-联吡啶 ( Dipy)为配体 ,在无水乙醇溶液中反应 ,合成了二元铕配合物 Eu( DBM) 3 和三元铕配合物 Eu( Phen) ( DBM) 3 及 Eu( Dipy) ( DBM) 3 ,经元素分析 ,确定了其组成。红外光谱及荧光光谱测试表明 ,配体中氧原子和氮原子均与铕 ( )离子配位 ,三元配合物的荧光强度高于二元配合物 ,三元配合物中含吡啶的配合物 Eu( Dipy) ( DBM) 3 荧光强度又高于含邻菲罗啉的配合物 Eu( Phen) -( DBM)The binary complex of Eu(Ⅲ) with dibenzoylmethide (DBM) and the ternary complexes of Eu(Ⅲ) with the mix-ligands DBM-Phen and DBM-Dipy have been synthesized in alcohol solution.The elementary analysis showed that their compositions are Eu(DBM) 3·2H 2O,Eu(Phen)(DBM) 3 and Eu(Dipy)(DBM) 3,respectively.The infrared spectra indicated that the oxygen atom in DBM and nitrogen atom in Phen and Dipy combined to Eu 3+ ion in the complexes.The luminescence spectra showed that the fluorescence intensities of the ternary complexes are higher than that of binary complex.For the ternary complexes,the one with Dipy as ligand showed stronger fluorescence than that with Phen as the ligand.

关 键 词：二苯甲酰甲烷 邻菲罗啉 稀土 2 2'-联吡啶 铕配合物 二元配合物 三元配合物 发光强度 发光性能 

分 类 号：O614.338[理学—无机化学] O482.31[理学—化学]