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(III)-1-(氯苯基)-3-(2-羟基苯基)-丙二酮类配合物的合成与荧光性质

作者:马昆鹏 赵学辉 钟朱惠 周志鹏 
单位:湖南工业大学 绿色包装与生物纳米技术应用重点实验室 湖南 株洲 412008 
关键词:1-(邻氯苯基)-3-(2-羟基苯基)-丙二酮(L1) 1-(间氯苯基)-3-(2-羟基苯基)-丙二酮(L2) 1-(对氯苯基)-3-(2-羟基苯基)-丙二酮(L3)  荧光性能 
分类号:O614.33
出版年,卷(期):页码:2015,43(7):0-0
DOI:10.14062/j.issn.0454-5648.2015.07.20
摘要:

 合成了1-(邻氯苯基)-3-(2-羟基苯基)-丙二酮(L1)1-(间氯苯基)-3-(2-羟基苯基)-丙二酮(L2)1-(对氯苯基)-3-(2-羟基苯基)-丙二酮(L3) 3种配体,并将此3种配体分别与Eu(III)反应生成3种新的稀土配合物运用元素分析、红外光谱与荧光光谱等手段对配合物进行了表征。结果表明:3种配合物的组成分别为Eu(L1)3·2H2OEu(L2)3·2H2OEu(L3)3·2H2O。荧光光谱显示,3种配合物的配体均能将吸收的能量有效地传递给三价铕离子,从而使配合物发射出强的铕离子的特征荧光。在3种配合物中,Eu(L1)3·2H2O的荧光强度远大于Eu(L2)3·2H2OEu(L3)3·2H2O的荧光强度,这说明配体L1Eu(III)离子的能级匹配较好,能量传递效率较高

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 Three kinds of ligands of 1-(2-chlorophenyl)-3-(2-hydroxyphenyl)propane-1,3-dione (L1), 1-(3-chlorophenyl)-3-(2- hydroxyphenyl)propane-1, 3-dione (L2) and 1-(4-chlorophenyl)-3-(2-hydroxyphenyl)propane-1, 3-dione (L3) were synthesized, and three kinds of new Eu(III) complexes of these ligands were obtained. The related compounds were characterized by chemical element analysis, infrared spectroscopy and fluorescence spectroscopy, respectively. The compositions of the complexes are Eu(L1)3·2H2O, Eu(L2)3·2H2O and Eu(L3)3·2H2O. According to the analysis by fluorescence spectroscopy, three complexes exhibit the characteristic emission of europium ions, indicating that the energy absorbed by these ligands can be effectively transferred to the europium ions. The fluorescence intensity of Eu(L1)3·2H2O is greatest among three complexes. This implies that the energy level of the ligand L1 with Eu(III) has a better match, resulting in the greater energy transfer efficiency.

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基金项目:
国家自然科学基金项目(21276070)资助。
作者简介:
第一作者:马昆鹏(1992—),男,硕士研究生。 通信作者:赵学辉(1967—),男,博士,教授。
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参考文献:
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