X-ray Crystal Structure and Characterization of Tetra-vanadyl Capped Highly Reduced Polyoxometalate Anion[Pmo5ⅥMo7ⅤO40(VⅣO)4]2-

Chemical Research in Chinese Universities ›› 2006, Vol. 22 ›› Issue (1): 17-20.

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X-ray Crystal Structure and Characterization of Tetra-vanadyl Capped Highly Reduced Polyoxometalate Anion[Pmo₅^ⅥMo₇^ⅤO₄₀(V^ⅣO)₄]^2-

CHANG Song, QIN Chao, WANG Xin-long, LI Yang-guang, WANG En-bo

Institute of Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China

Received:2005-02-01 Online:2006-02-24 Published:2011-08-06
Supported by:
Supported by the National Natural Science Foundation of China(No.2037101).

Abstract

Abstract: A novel polyoxometalate [H₃O]₂[Pmo₅^ⅥMo₇^ⅤO₄₀(V^ⅣO)₄]·6Py(Py=pyridine) was synthesized and characterized by IR spectrometry, TG and single-crystal X-ray diffraction. The title compound crystallizes in the monoclinic space group(C2/m) with a=1.3680(3) nm, b=2.1740(4) nm, c=1.1630(2) nm, β=118.62(3)°, V=3.0362(10) nm³, Z=2, and R₁(wR₂)=0.0772(0.2312). The compound contains a highly reduced vanadylpolymolybdophosphate polyoxometalate anion with a four-capped structure. The four {VO} units cap four opposite pits of the pseudo-Keggin core {PMo₁₂O₄₀}.

Key words: Highly reduced polyoxometalate anion, Hydrothermal synthesis, Four-capped, Pseudo-Keggin core

CHANG Song, QIN Chao, WANG Xin-long, LI Yang-guang, WANG En-bo. X-ray Crystal Structure and Characterization of Tetra-vanadyl Capped Highly Reduced Polyoxometalate Anion[Pmo₅^ⅥMo₇^ⅤO₄₀(V^ⅣO)₄]^2-[J]. Chemical Research in Chinese Universities, 2006, 22(1): 17-20.

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X-ray Crystal Structure and Characterization of Tetra-vanadyl Capped Highly Reduced Polyoxometalate Anion[Pmo₅^ⅥMo₇^ⅤO₄₀(V^ⅣO)₄]^2-

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