苯氧乙酸、邻菲啰啉铽-钇配合物的合成、表征及荧光性能(英文)  

Synthesis,Characterization and Fluorescence Properties of Y^(3+)-Doped Terbium Complexes with Phenoxyacetic Acid and 1,10-Phenanthroline

作　　者：王艳[1] 赵永亮[1] 李欢欢[1] 魏晓燕[1] 马瑞军[1] 杜燕[1] 

机构地区：[1]内蒙古大学化学化工学院,内蒙古呼和浩特010021

出　　处：《发光学报》2010年第3期405-410,共6页Chinese Journal of Luminescence

基　　金：Project supported by the National Science Foundation of China(20461002);Natural Science Foundation of Inner Mongolia(200711020203)~~

摘　　要：以苯氧乙酸和邻菲啰啉为配体,不同比例铽钇为中心,在无水乙醇中合成了一系列铽掺钇配合物?素分析和稀土络合滴定推测配合物的组成为TbxY1-x(POA)3phen·1/2H2O(POA-=C6H5OCH2COO-,x=1.0,0.9,0.8,0.7,0.6,0.5,0.4,0.3,0.2,0.1)。红外光谱测试表明,苯氧乙酸的羧基氧及苯氧基氧与稀土离子配位。邻菲啰啉的两个氮原子也与稀土离子配位;热分析表明:该系列配合物在274℃附近失去配位水,温度高于576℃发生氧化分解。荧光光谱测试结果表明:该系列配合物都可发出较强的特征荧光,在一定比例范围内,钇可以增强铽的发光,组成为配合物Tb0.7Y0.3(POA)3phen·1/2H2O荧光最强;荧光寿命与荧光强度变化一致。A series of Y3＋-doped terbium complexes with phenoxyacetic acid and 1,10-phenanthroline were synthesized in anhydrous alcohol.Elemental analysis and rare earth complexometic titration showed that the composition of the complexes are TbxY1-x（POA） 3phen·1 /2H2O（POA = C6H5OCH2COO-,x = 1.0,0.9,0.8,0.7,0.6,0.5,0.4,0.3,0.2 and 0.1）.The IR absorption spectra indicated that the rare earth ions are bounded with the oxygen atoms of phenoxyacetic acid and phenoxy,and with two nitrogen atoms of 1,10-phenanthroline.Thermogram and thermogravimetric analysis indicated that the complexes release coordinated water at about 274 ℃ and they are stable below 576 ℃.Fluorescent spectra showed that the fluorescence intensity of the series Tb3 ＋ complexes can be greatly enhanced if some of terbium ions in the complexes are substituted by Y3 ＋.The fluorescence lifetime of the complexes exhibits the similar feature to the fluorescence intensities.

关 键 词：铽掺钇配合物 苯氧乙酸 邻菲啰啉 荧光性质 

分 类 号：O641.4[理学—物理化学] O482.31[理学—化学]