| 二碘化铕的相变结构及荧光性质 |
| PHASE TRANSITION STRUCTURE AND FLUORESCENCE SPECTRA OF EuI2 |
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| 摘要: 本文用DTA、X-ray粉末衍射和荧光光度计等方法研究了EuI2的相变和结构及荧光性质.用退火和淬火的方法得到了EuI2的三种不同结构,并在荧光光谱上有不同的反映.首次发现EuI2的低温变体,EuI2-Ⅲ,正交晶系,空间群为Pnma,a=1.2287nm,b=0.4887nm,c=0.8384nm,Z=4. |
| 关键词: EuI2 相变 结构 荧光光谱 |
| 基金项目: 国家自然科学基金;中科院希土化学与物理开放实验室资助;国家基础研究8.5攀登基金 |
| Abstract: The phase transition structure and fluorescence spectra of EuI2 are studied by DTA,X-ray powder diffraction and fluorescene. Three different modifications of EuI2 are obtained by means of annealing and quenching and have been identified by X-ray powder diffraction and fluorescence spectra. A new orthorhombic structure(EuI2-Ⅲ)exists at lower temperature with: a=1.2287nm. b=0.4887nm, c=0.8384nm, Z=4. |
| Keywords: curopium diiodide phase transition structurefluorescence spectra |
| 投稿时间：1994-01-25 |
| 摘要点击次数: 2253 |
| 全文下载次数: 1746 |
| 王世华,王林同,任光明.二碘化铕的相变结构及荧光性质[J].无机化学学报,1995,11(1):93-96. |
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