应用化学 ›› 1988, Vol. 0 ›› Issue (3): 64-66.

• 研究论文 • 上一篇    下一篇

稀土碘氧化物的制备和X-射线分析

刘书珍, 李有谟, 李继文, 陈明玉   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1987-02-05 修回日期:1987-06-22 出版日期:1988-06-10 发布日期:1988-06-10

PREPARATION AND X-RAY DIFFRACTION STUDY OF LnOI

Liu Shuzhen, Li Youmo, Li Jiwen, Chen Mingyu   

  1. Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1987-02-05 Revised:1987-06-22 Published:1988-06-10 Online:1988-06-10

摘要: 用改进的助熔剂法制备了十五个稀土元素(Ⅲ)的碘氧化物.通过化学和X光衍射分析方法确定这些化合物组成为LnOI,并计算了它们的晶胞参数.对Eu(Ⅲ)的碘氧化物异常现象进行了讨论.

关键词: 稀土化合物, 碘氧化物, 制备, 晶体结构, 增减剂

Abstract: Oxyiodides of 15 rare earths, LnOI (Ln=La-Lu and Y) were prepared by a flux method under reducing atmosphere. LnOI obtained were checked by chemical analysis and X-ray diffraction method. The crystals of all of the oxyiodides belong to the tetragonal system. The crystal parameters of the compounds were compared with those of LnOCL and LnOBr. Anomaly of EuOI has been discussed.

Key words: Rare earth compounds, Oxyiodides, Preparation, Crystal structure, Sensitizer