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Chem. J. Chinese Universities ›› 2001, Vol. 22 ›› Issue (3): 362.

• Articles • Previous Articles     Next Articles

Synthesis and Crystal Structure of a Novel Amino-acid-containing Polyoxometalate: K6[Cu(Ala)2(H2O)2]2[Cu4(H2O)2(AsW9O34 )2]·16H2O

WANG Yong-Hui1, HU Chang-Wen1, WANG En-Bo1, Hu-Ning-Hai2, Jia-Heng-Qing2, Xing-Yan2   

  1. 1. Institute of Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China;
    2. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022, China
  • Received:2000-07-03 Online:2001-03-24 Published:2001-03-24

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Abstract: The novel amino-acid-containing polyoxometalate K6[Cu(Ala)2(H2O)2]2[Cu4(H2O)2·(AsW9O34 )2]·16H2Owas synthesized from the reaction of K10 [Cu4(H2O)2(AsW9O34 )2]·20H2Owith β--alanine. Its structure has been determined by single crystal X-ray diffraction. It crystallizes in the triclinic space group P1, with a=1.1963(2) nm, b=1.5365(3) nm, c=1.5914(3) nm, α=93.97(3)°, β-=110.88(3)°, γ=101.07(3)°, V=2.6518(9) nm3 and Z=1. Least squares refinement of the structure leads to Rand Rw factors of 0.0673 and 0.1628, respectively. An unusual structural feature of the compound is that the polyanion [Cu4(H2O)2(AsW9O34 )2]10- is linked with the amino acid complex of Cu 2+ by a μ-oxygen atom.

Key words: Amino acid, Polyoxotungstoarsenate, Synthesis, Crystal structure

CLC Number: 

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