【作者】 李艳凤； 宁桂玲； 杨雪峰； 林源；

【Author】 LI Yan-feng, NING Gui-ling, YANG Xue-feng, LIN Yuan (State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, Dalian 116012,China)

【机构】 大连理工大学精细化工国家重点实验室；

【摘要】 在液相中制备了苯甲酸铕铁(Ⅱ)和苯甲酸铕铁(Ⅲ)两个系列的三元固体配合物,并用红外光谱和荧光光谱进行了表征。由红外数据表明,配合物中的羧基配位方式具有螯合-桥式三齿配位的特征。荧光光谱实验结果表明微量Fe2+、Fe3+的存在对Eu3+ 的特征荧光产生了猝灭作用,随着Fe2+或Fe3+离子含量的增加,配合物的荧光光谱强度均逐渐减弱。并分析了猝灭原因。更多还原

【Abstract】 A series of complexes of benzole acid with Europium and iron were synthesized in liquid phase. The FT-IR spectra and fluorescence spectra of the complexes were investigated. The FT-IR spectra show that the coordinating pattern of the carboxyl groups in the complexes is the form of tridentate chelating-bridging. The fluorescence spectra indicate that the emission intensity for Eu3+ ion can be greatly quenched by Fe2+ or Fe3+ ion. The dependence of the relative fluorescence intensity of the complexes upon the content for Fe2+ or Fe3+ ion was discussed.更多还原