| 光谱学与光谱分析 |
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| Influence of Inert Nuclei(La3+,Y3+ and Gd3+) on Fluorescence of Europium Complex with Phenylglyoxylic Acid and Phenathroline |
| ZHANG Yan-hui1,YAN Jian-bo3,YAN Xiao-qi1,PEI Juan1,GENG Xiao-tian1,ZHAO Ying2,WANG Yun-you3, SUN Bo1* |
1. Department of Materials Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
2. State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry，Chinese Academy of Sciences, Beijing 100080, China
3. China Dankong Industry and Trade Group Company, Taizhou 318000, China |
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Abstract Three series of dinuclear complexes(EuxRE1-xL3phen) of phenylglyoxylic acid and phenathroline with different molar ratios of Eu3+ to inert nuclei (RE=La3+,Y3+ and Gd3+) were synthesized. Their excitation and emission spectra were studied. The excitation spectra showed that the optimum excitation wavelengths of the complexes are all in the range of 350-360 nm, which belong to the excitation peaks of ligands, and the weak excitation peak of Eu3+ is at about 398 nm; The emission spectra showed that there are five emission bands at about 583，595，617，654 and 703 nm respectively for all the complexes, due to 5D0—7F0,5D0—7F1,5D0—7F2,5D0—7F3 and 5D0—7F4 transitions of Eu3+ respectively. The authors also found that the emission peak positions of Eu3+ shift the most in the complexes EuxLa1-xL3phen, the position of 5D0—7F2 transition shifts 5.2 nm when the molar ratio of Eu3+∶La3+ is 0.3∶0.7, but the addition of Y3+ and Gd3+ makes the emission peak positions of Eu3+ change less than that of La3+. Meanwhile the luminescence intensity of Eu3+ can be most enhanced by La3+ in all the complexes. The conclusion we found in the present paper could help search the luminescence materials with low cost and good luminescence properties.
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Received: 2005-12-01
Accepted: 2006-03-18
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Corresponding Authors:
SUN Bo
E-mail: suhb@eyou.com
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| Cite this article: |
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ZHANG Yan-hui,YAN Jian-bo,YAN Xiao-qi, et al. Influence of Inert Nuclei(La3+,Y3+ and Gd3+) on Fluorescence of Europium Complex with Phenylglyoxylic Acid and Phenathroline[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(03): 525-529.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I03/525 |
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