铕(Ⅲ)-苯甲酰丙酮-邻菲啰啉配合物的合成及其荧光性质

Synthesis and fluorescent property of the Eu(Ⅲ) complex with the benzoyl acetone and 1,10-phenanthrolin

为提高苯甲酰丙酮(BA)的Eu(Ⅲ)配合物的荧光强度,以邻菲啰啉(Phen)作为第2配体合成了三元混配配合物Eu(BA)3·Phen,并通过化学分析和元素分析确定了配合物的组成,通过FTIR谱对配合物进行了表征。荧光光谱数据表明,与相应的二元配合物Eu(BA)3·2H2O相比,Eu(BA)3·Phen的荧光强度提高了57%。

To increase the fluorescence intensity of the complex of the benzoyl acetone （BA） with the Eu^3＋, the ternary complex Eu（BA）3·Phen was prepared with the 1,10-phenanthreline （Phen） as the second ligand. The composition of the complex was determined by chemical and elementary analysis, and the structure of the complex was characterized by FT-IR spectra. The fluorescence spectra of the complexes were measured. Compared with the corresponding binary complex Eu（BA）3·2H2O, the fluorescence intensity of the ternary complex Eu（BA）3·Phen was increased by a factor of 57%. Moreover, the fluorescence enhancement effect of the second ligand Phen on the complex was discussed.