| 晶场效应和化学键性质对Eu^2+光谱结构的影响 |
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| 引用本文： | 满石清,石春山. 晶场效应和化学键性质对Eu^2+光谱结构的影响[J]. 化学学报, 1990, 48(7): 648-652 |
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| 作者姓名： | 满石清 石春山 |
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| 作者单位： | 中国科学院稀土化学与物理开放实验室 |
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| 摘 要： | 合成了掺Eu^2+的单一氟化物五种和复合氟化物六种; 研究了Eu^2+在基质中的跃迁发射随晶场、化学键性质变化的规律。 在一些低配位数、强晶场的体系中观察到了Eu^2+的f→f跃迁发射, 首次在室温下,观察到单一氟化物AlF3:Eu^+中的f→f跃迁发射。
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| 关 键 词： | 氟化物 铕化合物 化学键 跃迁 晶场理论 荧光分光光度法 |
Efect of crystal-field and bonding properties on spectral structure of Eu2+ |
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| MAN SHIQING,SHI CHUNSHAN. Efect of crystal-field and bonding properties on spectral structure of Eu2+[J]. Acta Chimica Sinica, 1990, 48(7): 648-652 |
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| Authors: | MAN SHIQING SHI CHUNSHAN |
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| Abstract: | Five Eu2+-doped simple fluorides and 6 Eu2+-doped complex fluorides were synthesized by solid reactions. The strength of the crystal-field at the sites of Eu2+ ion, and the degree of covalence of Eu-F bond in these hosts are discussed. The f-f transition emission of Eu2+ ion was observed in the hosts which has lower coordination no. and strong crystal-field. The f-f transition emission of Eu2+ ion was observed for the 1st time in the simple fluoride AlF3. |
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| Keywords: | FLUORIDE EUROPIUM COMPOUNDS CHEMICAL BONDS TRANSITION CRYSTAL FIELD THEORY FLUOROSPECTROPHOTOMETRY |
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