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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 terbium-doped yttrium complexes were synthesized from phenylacetic acid and phenanthroline with different proportions of terbium-yttrium as the center, and the composition of 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). Infrared spectroscopy showed that phenoxyacetic acid carboxyl oxygen and phenoxy oxygen and rare earth ions coordination. The two nitrogen atoms of phenanthroline also coordinated with rare earth ions. The thermal analysis showed that the complexes lost the coordination water near 274 ℃ and oxidized and decomposed at temperatures above 576 ℃. Fluorescence spectrum test results show that the series of complexes can emit strong characteristic fluorescence. In a certain range of proportion, yttrium can enhance the luminescence of terbium, and the composition is Tb0.7Y0.3 (POA) 3phen · 1 / 2H2O fluorescence Strongest; Fluorescence lifetime and fluorescence intensity changes.