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

Chemical Research in Chinese Universities ›› 2003, Vol. 19 ›› Issue (2): 145-150.

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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

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.

Abstract

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

WANG Jun, ZHANG Xiang-dong, JIA Wei guo, LI Hui fang . 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[J]. Chemical Research in Chinese Universities, 2003, 19(2): 145-150.

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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

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