| Syntheses and cofluorescence of complexes of Eu（Ⅲ）/Y（Ⅲ） with terephthalic acid, 2-thenoyltrifluoroacetone and trioctylphosphine oxide |
| |
| 引用本文： | 赵学辉,黄可龙,刘素琴,焦飞鹏,刘志国,胡舜钦,李朝建.Syntheses and cofluorescence of complexes of Eu（Ⅲ）/Y（Ⅲ） with terephthalic acid, 2-thenoyltrifluoroacetone and trioctylphosphine oxide[J].中国有色金属学会会刊,2007,17(3):638-643. |
| |
| 作者姓名： | 赵学辉 黄可龙 刘素琴 焦飞鹏 刘志国 胡舜钦 李朝建 |
| |
| 作者单位： | [1]School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; [2]Key Laboratory of Green Packaging and Application Biological Nanotechnology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China |
| |
| 基金项目： | Foundation item： Project（20576142） supported by the National Natural Science Foundation of China; Project（05B075） supported by the Foundation of Hunan Education Bureau for Young Scholars, China |
| |
| 摘 要： | A series of Eu（ Ⅲ）/Y（Ⅲ） complexes of terephthalic acid（TPA） with 2-thenoyltrifluoroacetone（HTTA） and trioctylphosphine oxide（TPPO） were synthesized. Compositions of these complexes are revealed to be Eu2（1-x）Y2x（TPA）（TTA）4- （TPPO）4 or EU1-xYx（TPA）（TTA）（TPPO）2. Their 1R spectra, fluorescent spectra and the thermal and optical stability were studied. The fluorescent excitation spectra of these complexes show more broad excitation bands than those of Eu2（TPA）3（TPPO）4 and Eu（TTA）3（TPPO）2 corresponding to their formations. In addition, both the binuclear complex EuY（TPA）（TTA）4（TPPO）4 and the chain complex EU0.4Y0.6（TPA）（TTA）（TPPO）2 present higher thermal stability and better optical stability than the mononuclear complex Eu（TTA）3（TPPO）2 does. And their thermal and optical stabilities are preferably interpreted from the binuclear structure together with the chain polynuclear structure of the complexes. The fluorescence enhancement of cofluorescence Y^3＋ ions to the Eu（Ⅲ） complexes is clear. The optimum content of Y^3＋ is 0.6 （molar fraction） for the chain complexes Eu1-xYx（TPA）（TTA）- （TPPO）2 and 0.5 for the binuclear complexes Eu^2（1-x）Y2x（TPA）（TTA）4（TPPO）4. The formation of polynuclear structure of the complex Eu1-xYx（TPA）（TTA）（TPPO）2 appears to be responsible for the good cofluorescence effect of Y^3＋ ions.
|
| 关 键 词： | 铕元素 对酞酸 2-噻吩甲酰基三氟丙酮 合成方法 |
| 收稿时间： | 25 May 2006 |
| 修稿时间： | 2006-05-252007-01-15 |
Syntheses and cofluorescence of complexes of Eu(III)/Y(III) with terephthalic acid, 2-thenoyltrifluoroacetone and trioctylphosphine oxide |
| |
| ZHAO Xue-hui,HUANG Ke-long,LIU Su-qin,JIAO Fei-peng,LIU Zhi-guo,HU Shun-qin,LI Zhao-jian,.Syntheses and cofluorescence of complexes of Eu(III)/Y(III) with terephthalic acid, 2-thenoyltrifluoroacetone and trioctylphosphine oxide[J].Transactions of Nonferrous Metals Society of China,2007,17(3):638-643. |
| |
| Authors: | ZHAO Xue-hui HUANG Ke-long LIU Su-qin JIAO Fei-peng LIU Zhi-guo HU Shun-qin LI Zhao-jian |
| |
| Affiliation: | 1. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; 2. Key Laboratory of Green Packaging and Application Biological Nanotechnology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China |
| |
| Abstract: | A series of Eu(III)/Y(III) complexes of terephthalic acid(TPA) with 2-thenoyltrifluoroacetone(HTTA) and trioctylphosphine oxide(TPPO) were synthesized. Compositions of these complexes are revealed to be Eu2(1-x)Y2x(TPA)(TTA)4-(TPPO)4 or Eu1-xYx(TPA)(TTA)(TPPO)2. Their IR spectra, fluorescent spectra and the thermal and optical stability were studied. The fluorescent excitation spectra of these complexes show more broad excitation bands than those of Eu2(TPA)3(TPPO)2 and Eu(TTA)3(TPPO)2 corresponding to their formations. In addition, both the binuclear complex EuY(TPA)(TTA)4(TPPO)4 and the chain complex Eu0.4Y0.6(TPA)(TTA)(TPPO)2 present higher thermal stability and better optical stability than the mononuclear complex Eu(TTA)3(TPPO)2 does. And their thermal and optical stabilities are preferably interpreted from the binuclear structure together with the chain polynuclear structure of the complexes. The fluorescence enhancement of cofluorescence Y3+ ions to the Eu(III) complexes is clear. The optimum content of Y3+ is 0.6 (molar fraction) for the chain complexes Eu1-xYx(TPA)(TTA)- (TPPO)2 and 0.5 for the binuclear complexes Eu2(1-x)Y2x(TPA)(TTA)4(TPPO)4. The formation of polynuclear structure of the complex Eu1-xYx(TPA)(TTA)(TPPO)2 appears to be responsible for the good cofluorescence effect of Y3+ ions. |
| |
| Keywords: | cofluorescence europium terephthalic acid 2-thenoyltrifluoroacetone trioctylphosphine oxide |
| 本文献已被 CNKI 维普 ScienceDirect 等数据库收录！ |
