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高等学校化学研究 ›› 2003, Vol. 19 ›› Issue (2): 145-150.

• Articles • 上一篇    下一篇

Syntheses and Structural Researches of Yb3+ Complexes with Nitrilotriacetic Acids——Nine-coordinate K3[Yb(nta)2(H2O)]·5H2O and Eight-coordinate Na3[Yb(nta)2]·6H2O Complexes

WANG Jun, ZHANG Xiang-dong, JIA Wei guo, LI Hui fang   

  1. Department of Chemistry, Liaoning University, Shenyang 110036, P. R. China
  • 收稿日期:2001-12-12 出版日期:2003-04-24 发布日期:2011-08-06
  • 基金资助:

    Supported by the Natural Science Fund of Liaoning Province and Shenyang City Science and Technology Committee.

Syntheses and Structural Researches of Yb3+ Complexes with Nitrilotriacetic Acids——Nine-coordinate K3[Yb(nta)2(H2O)]·5H2O and Eight-coordinate Na3[Yb(nta)2]·6H2O Complexes

WANG Jun, ZHANG Xiang-dong, JIA Wei guo, LI Hui fang   

  1. Department of Chemistry, Liaoning University, Shenyang 110036, P. R. China
  • Received:2001-12-12 Online:2003-04-24 Published:2011-08-06
  • Supported by:

    Supported by the Natural Science Fund of Liaoning Province and Shenyang City Science and Technology Committee.

PDF (PC)

摘要： Yb3+ complexes with two nitrilotriacetic acid molecules were prepared and their compositions were determined as K3[Yb(nta)2(H2O)]·5H2O and Na3[Yb(nta)2]·6H2O by elemental analyses. Their structures were characterized by single-crystal X-ray diffraction analyses. In complex K3[Yb(nta)2(H2O)]·5H2O, the YbN2O7 part forms a nine-coordinate monocapped square antiprismatic structure. In complex Na3[Yb(nta)2]·6H2O, the YbN2O6 part forms an eight-coordinate square antiprismatic structure. It can be seen that the outer cations (K+ and Na+) greatly affect the coordination number and coordinate structure from these results.

关键词: Yb3+ complex, Nitrilotriacetic acid, Crystal structure

Abstract: Yb3+ complexes with two nitrilotriacetic acid molecules were prepared and their compositions were determined as K3[Yb(nta)2(H2O)]·5H2O and Na3[Yb(nta)2]·6H2O by elemental analyses. Their structures were characterized by single-crystal X-ray diffraction analyses. In complex K3[Yb(nta)2(H2O)]·5H2O, the YbN2O7 part forms a nine-coordinate monocapped square antiprismatic structure. In complex Na3[Yb(nta)2]·6H2O, the YbN2O6 part forms an eight-coordinate square antiprismatic structure. It can be seen that the outer cations (K+ and Na+) greatly affect the coordination number and coordinate structure from these results.

Key words: Yb3+ complex, Nitrilotriacetic acid, Crystal structure