发光学报, 2010, 31 (3): 405, 网络出版: 2010-08-03   

苯氧乙酸、邻菲啰啉铽-钇配合物的合成、表征及荧光性能

Synthesis, Characterization and Fluorescence Properties of Y3+-Doped Terbium Complexes with Phenoxyacetic Acid and 1,10-Phenanthroline
作者单位
内蒙古大学化学化工学院, 内蒙古 呼和浩特 010021
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。元素分析和稀土络合滴定推测配合物的组成为TbxY1-x (POA)3 phen·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)3 phen·1/2H2O荧光最强;荧光寿命与荧光强度变化一致。
Abstract
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.

王艳, 赵永亮, 李欢欢, 魏晓燕, 马瑞军, 杜燕. 苯氧乙酸、邻菲啰啉铽-钇配合物的合成、表征及荧光性能[J]. 发光学报, 2010, 31(3): 405. WANG Yan, ZHAO Yong-liang, LI Huan-huan, WEI Xiao-yan, MA Rui-jun, DU Yan. Synthesis, Characterization and Fluorescence Properties of Y3+-Doped Terbium Complexes with Phenoxyacetic Acid and 1,10-Phenanthroline[J]. Chinese Journal of Luminescence, 2010, 31(3): 405.

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