A Novel Dimer——Heteropolytungstate with a Vanadium Atom as the Centre ——Synthesis and Structural Characterization of （H3O）4[VW12O40Na（H2O）4]2

Chemical Research in Chinese Universities ›› 2000, Vol. 16 ›› Issue (3): 198-202.

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A Novel Dimer——Heteropolytungstate with a Vanadium Atom as the Centre ——Synthesis and Structural Characterization of （H₃O）₄[VW₁₂O₄₀Na（H₂O）₄]₂

LIU Zong-rui^1,2, XU Lin¹, WANG En-bo¹, PENG Jun¹, HU Chang-wen¹, XING Yan³, LIN Yong-hua³, JIA Heng-qing³

1. Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China;
2. Inner Mongolia Teachers' College for Nationalities, Tongliao 028043, P. R. China;
3. Changchun Insitute of Applied Chemistry, Acadamia of Sinica, Changchun 130022, P. R. China

Received:1999-05-27 Online:2000-08-24 Published:2011-10-22
Supported by:
Supported financially by the Key laboratory of Inorganic Hydrothermal Synthesis of Jilin University.

Abstract

Abstract: A novel dimer-tungstovanadate, (H₃O)₄[VW₁₂ O₄₀ Na(H₂O)₄]₂, was hydrothermally synthesized and structurally characterized by single crystal X ray diffraction, IRspectra, TGA-DSC thermal analysis and polarograpy. The yellowish crystal crystallized in the triclinic system, space group P1, a =1.4645(3) nm, b =1.4686(3) nm, c =1.4111(3) nm, α=111.82(2)°, β=93.17(3)°, γ=117.47(3)°, V =2.2106(8) nm³, Z=1, D_c=4.552 g·cm³ , λ(Mo Kα )=0.071073 nm, μ =31.402 mm^-1 , F(000)=2648, R =0.0780. The title compound consists of two Keggin structure units linked together with two hydrated sodium cations to form a dimer with a porous structure with the pore dimension of 0.766 nm×0.7785 nm.

Key words: Synthesis, Crystal structure, Tungstovanadate

LIU Zong-rui, XU Lin, WANG En-bo, PENG Jun, HU Chang-wen, XING Yan, LIN Yong-hua, JIA Heng-qing . A Novel Dimer——Heteropolytungstate with a Vanadium Atom as the Centre ——Synthesis and Structural Characterization of （H₃O）₄[VW₁₂O₄₀Na（H₂O）₄]₂[J]. Chemical Research in Chinese Universities, 2000, 16(3): 198-202.

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A Novel Dimer——Heteropolytungstate with a Vanadium Atom as the Centre ——Synthesis and Structural Characterization of （H₃O）₄[VW₁₂O₄₀Na（H₂O）₄]₂

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