物理化学学报 >> 1993, Vol. 9 >> Issue (06): 752-759.doi: 10.3866/PKU.WHXB19930607

研究论文 上一篇    下一篇

反丁烯二酸稀土配合物的合成及晶体结构

马建方; 卫革成; 倪嘉缵   

  1. 中国科学院长春应用化学研究所，长春 130022
  • 收稿日期:1992-05-25 修回日期:1992-08-17 发布日期:1993-12-15
  • 通讯作者: 马建方

Syntheses and Crystal Structures of the Complexes of rare Earth with Fumaric Acid

Ma Jian-Fang; Wei Ge-Cheng; Ni Jia-Zuan   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1992-05-25 Revised:1992-08-17 Published:1993-12-15
  • Contact: Ma Jian-Fang

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摘要： 合成了反丁烯二酸C_4H_4O_4与六种稀土(Eu, Gd, Tb, Y, Er, Lu)的配合物M_2F_3·12H_2O(H_2F=C_4H_4O_4). 用X射线衍射法测定了它们的晶体学参数, 并测定了其中五种配合物的结构. 指出存在两类不同的结构, 其中铕配合物为三斜晶系, 空间群P(1), 铕离子配位数为10. 铽、钇、铒、镥配合物为单斜晶系, 空间群为P2_1/c, 配位数为8. 配合物均具有三维网状结构.

关键词: 反丁烯二酸, 配合物合成, 晶体结构

Abstract: Six compounds of M_2F_3·12H_2O (M=Eu, Gd, Tb, Y, Er, Lu; H_2F=Fumaric acid) have been synthesized. The structures of Eu(Ⅲ), Tb(Ⅲ), Y(Ⅲ), Er(Ⅲ) and Lu(Ⅲ) compounds have been determined by single crystal X-ray diffraction method. The complex of Eu(Ⅲ) crystallizes in triclinic space group P(1), and the coordination number of Eu~(3+) is ten. The other four complexes crystallize in monclinic space group P2_(1/c), and the coordination numbers of the metal ions are eight. Each of the complexes shows a three-dimensional net structure.

Key words: Fumaric acid, Complex, Synthesis, Crystal structure