| Synthesis, fluorescence properties of Eu（III） complexes with novel carbazole functionalized β-diketone ligand |
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| 引用本文： | 唐瑞仁,张炜,罗一鸣,李军.Synthesis, fluorescence properties of Eu（III） complexes with novel carbazole functionalized β-diketone ligand[J].中国稀土学报(英文版),2009,27(3):363-368. |
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| 作者姓名： | 唐瑞仁 张炜 罗一鸣 李军 |
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| 作者单位： | School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China |
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| 基金项目： | Foundation item： Project supported by China Postdoctoral Science Foundation （20080431027） and the Postdoctoral Science Foundation of Central South University （50573019） |
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| 摘 要： |
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| 关 键 词： | 酮配合物 乙基咔唑 III 荧光性能 铕 合成 能量传递过程 邻菲罗啉 |
| 收稿时间： | 18 February 2009 |
Synthesis, fluorescence properties of Eu（III） complexes with novel carbazole functionalized β-diketone ligand |
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| TANG Ruiren,ZHANG Wei,LUO Yiming,LI Jun.Synthesis, fluorescence properties of Eu（III） complexes with novel carbazole functionalized β-diketone ligand[J].Journal of Rare Earths,2009,27(3):363-368. |
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| Authors: | TANG Ruiren ZHANG Wei LUO Yiming LI Jun |
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| Affiliation: | School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China |
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| Abstract: | A novel carbazole functionalized β-diketone, methyl 6-(9-ethylcarbazole-3-yl)-oxoacetyl-2-pyridinecarboxylate (MEP), and its corresponding binary Eu(III) complexes Eu(MEP)3·2H2O and ternary complex Eu(MEP)3Phen with 1,10-Phenanthroline (Phen) were prepared. The ligand was characterized based on elemental analysis, FT-IR, and 1H NMR, and the complexes were characterized with elemental analysis, FT-IR and thermogravimetric and differential thermal analysis (TG-DTA). The investigation of fluorescence properties of the complexes Eu(MEP)3·2H2O and Eu(MEP)3Phen showed that the Eu(III) ion could be sensitized efficiently by the ligand to some extent, in particular, in the ternary system, the secondary ligand Phen acting as a light-harvesting center was involved in the highly efficient energy transfer process, and the emission was stronger than the binary complex. In addition, the introduction of the carbazole moiety enlarged the π-conjugated system of the ligand and enhanced the luminescent intensity of the complexes. |
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| Keywords: | organic ligand carbazole β-diketone 1 10-Phenanthroline fluorescence property rare earths |
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