| 苯甲酸及其一氯代衍生物与邻菲罗啉或联吡啶的稀土铕三元配合物的荧光性质 |
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| 引用本文： | 吕国伟,李勇,李卫华,徐怡庄,杜为民.苯甲酸及其一氯代衍生物与邻菲罗啉或联吡啶的稀土铕三元配合物的荧光性质[J].光谱学与光谱分析,2003,23(2):307-310. |
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| 作者姓名： | 吕国伟 李勇 李卫华 徐怡庄 杜为民 |
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| 作者单位： | 1. 北京大学物理学院,北京,100871
2. 北京大学化学与分子工程学院,北京,100871 |
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| 摘 要： | 本文报道合成了八种苯甲酸及其一氯代衍生物与邻菲罗啉或联吡啶的稀土铕三元配合物并测得了荧光光谱。通过改变第一和第二配体,研究了配合物发光峰强度、位置和分裂间隔等的变化情况,依据荧光发射峰的分裂推断出Eu~(3 )离子所处的局域环境对称性大致都是C_1,C_2或C_s。虽然配合物的局域对称性大致相同,但由于配体场作用和能级匹配等原因,发光峰位置和强度是不同的;讨论了第一配体分子结构的变化对荧光性能的影响,认为分子自身结构的对称性可能对提高配合物发光性能有较大影响;实验还观察到第二配体也参与配位且对发光性能影响较大。同时看到发光峰的分裂间隔大小变化和发光峰的相对强度的变化是一致的。
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| 关 键 词： | EU~(3 )离子 光荧光谱 稀土配合物 |
| 文章编号： | 1000-0593(2003)02-0307-04 |
| 修稿时间： | 2002年5月27日 |
The Luminescence Character of Eu Complexes with Derivatives of Benzoic Acid and Different Second Ligands |
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| LU Guo-wei,LI Yong,LI Wei-hua,XU Yi-zhuang and DU Wei-min
. School of Physics,Peking University,Beijing ,China
. College of Chemistry and Molecular Engineering,Peking University,Beijing ,China.The Luminescence Character of Eu Complexes with Derivatives of Benzoic Acid and Different Second Ligands[J].Spectroscopy and Spectral Analysis,2003,23(2):307-310. |
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| Authors: | LU Guo-wei LI Yong LI Wei-hua XU Yi-zhuang and DU Wei-min
School of Physics Peking University Beijing China
College of Chemistry and Molecular Engineering Peking University Beijing China |
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| Institution: | School of Physics, Peking University, Beijing 100871, China. |
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| Abstract: | Synthesize eight rare earth europium complexes with derivatives of benzoic acid and different second ligands. We obtained luminescence spectra of these complexes. Although their Eu3 have about local surrounding symmetry, luminescent intensities are different each other. Because of matching of energy level the complexes with phen is better than with bipy and through the variety structure of spectra show the complexity of Eu' hypersensitive transition. |
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| Keywords: | Eu3 ion Luminescent spectra Rare earth complexes |
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