摘要
由邻苯二甲酸氢钾 ,2 ,2′ 联吡啶分别与EuCl3 和TbCl3 在乙醇水溶液中反应 ,合成了铕配合物Eu2 L3 L′和铽配合物Tb2 L3 L′(L =邻苯二甲酸根 ,L′=2 ,2′联吡啶 ) ;以不同摩尔比混合两种配合物 ,经机械研磨 ,得混合固体铕铽配合物。测试了配合物的荧光光谱及红外光谱 ,结果表明 ,与单一铕配合物和铽配合物相比 ,混合固态配合物无论是荧光发射峰位还是荧光强度均发生了明显变化 ,铽对铕的荧光强度有敏化作用 ,铕对铽的荧光强度有猝灭作用。红外光谱测试表明 ,混合固态配合物中 ,两种配合物间存在相互作用力。
Complexes Eu 2L 3L′ and Tb 2L 3L′ (L=0-ph thalate,L′=2,2′-dipyridyl) have been synthesized.Mixed the both complexes as different molar ratio,mechanically ground them,then obtained a series mixed soli d complexes of europium and terbium.Their fluorescnce and infrared spectra were investigated.The results showed that there were obviously change for their fluor escence intensities and peak positions as compared with Eu 2L 3L′ or Tb 2L 3L′.The fluorescence intensities of europium ions were sensitized by terbium io ns and those of terbium ions were quenched by europium ions.FTIR spectra indicat ed that there were a combined force between the two complexes in the mixed solid complexes.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2000年第5期718-720,共3页
Spectroscopy and Spectral Analysis
基金
内蒙古自然科学基金
关键词
铕-铽配合物
邻苯二甲酸
联吡啶
荧光光谱
Complexes of europium and terbium, Solid mixtru e, o-phthalate, 2,2′-dipyridyl, Fluorescence spectra
