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X-ray Crystal Structure and Characterization of Tetra-vanadyl Capped Highly Reduced Polyoxometalate Anion [PMo_5~ⅥMo_7~ⅤO_(40)(V~ⅣO)_4]^(2-)

X-ray Crystal Structure and Characterization of Tetra-vanadyl Capped Highly Reduced Polyoxometalate Anion [PMo_5~ⅥMo_7~ⅤO_(40)(V~ⅣO)_4]^(2-)

作     者:CHANG Song QIN Chao WANG Xin-long LI Yang-guang WANG En-bo 

作者机构:Institute of Polyoxometalate Chemistry Faculty of Chemistry Northeast Normal University Changchun 130024 P. R. China 

出 版 物:《Chemical Research in Chinese Universities》 (高等学校化学研究(英文版))

年 卷 期:2006年第22卷第1期

页      面:17-20页

核心收录:

学科分类:081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

基  金:SupportedbytheNationalNaturalScienceFoundationofChina(No.2037101) 

主  题:Highly reduced polyoxometalate anion Hydrothermal synthesis Four-capped Pseudo-Keggin core 

摘      要:A novel polyoxometalate [H3O][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 α=1.3680(3) nm, b=2.1740(4) nm, c=1.1630(2) nm, β= 118.62(3)°, V= 3. 0362 (10) nm^3, Z = 2, and Rt (wR2) = 0. 0772 (0. 2312). The compound contains a highly reduced vanadylpoly-molybdophosphate polyoxometalate anion with a four-capped structure. The four {VO} units cap four opposite pits of the pseudo-Keggin core {PMo12O40}.

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