铽对苯甲酸配合物体系中铕发光的敏化作用  

Luminescence of Europium in Complex Systems with Benzoic Acid Sensitized by Terbium

作　　者：连锡山[1] 马素清[1] 

机构地区：[1]内蒙古大学化学系,内蒙古呼和浩特010021

出　　处：《内蒙古大学学报（自然科学版）》1999年第5期609-611,共3页Journal of Inner Mongolia University：Natural Science Edition

基　　金：国家自然科学基金

摘　　要：合成了铕铽苯甲酸和铕铽镧苯甲酸两个系列混合稀土固体配合物，并研究了它们的荧光光谱．结果表明，铕（Ⅲ）离子的荧光发射被铽（Ⅲ）离子强烈敏化，而铽（Ⅲ）的荧光发射被铕（Ⅲ）离子强烈猝灭．镧（Ⅲ）离子的引入，可使铽（Ⅲ）对铕（Ⅲ）的敏化作用增强，使铕（Ⅲ）对铽（Ⅲ）的猝灭作用减弱；A series of the mixed solid complexes of europium terbim benzoate and europium terbium lanthanum benzoate were synthesized.Their fluorescence spectra have been investigated.The results showed that the fluorescence emission of europium ions were greatly sensitized by terbium ions and those of terbium ions were strongly quenched by europium ions.The sensitization of Tb 3+ to the fluorescence emission of Eu 3+ can be enhanced and the quenching effect of Eu 3+ to that of Tb 3+ can be weakened by La 3+ .But the peak positions of their emission spectra basically keep unchanged.

关 键 词：铕 发光 稀土配合物 敏化作用 苯甲酸 铽 

分 类 号：O614.341[理学—无机化学]