Acta Phys. -Chim. Sin. ›› 1993, Vol. 9 ›› Issue (06): 752-759.doi: 10.3866/PKU.WHXB19930607

• ARTICLE • Previous Articles     Next Articles

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

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