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题名: A new Mo/V-oxide-based cationic species templated by Keggin polyoxotungstates (4-) and its catalytic activity in benzene hydroxylation
作者: Wu, Qing1;  Yang, Hua2, 3;  Cheng, Hong-Wei1;  Liu, Zhi-Guang1;  You, Wan-Sheng1;  Gao, Shuang2
关键词: Polyoxometa late ;  Organic-inorganic hybrid ;  Mo/V-oxide-based cation ;  Hydroxylation
刊名: JOURNAL OF MOLECULAR STRUCTURE
发表日期: 2012-12-26
DOI: 10.1016/j.molstruc.2012.06.054
卷: 1030, 页:83-88
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Three new polyoxotungstate-templated Mo/V-oxide-based organic-inorganic hybrid compounds, [Mo2V2O9(bpy)(6)][XW12-xVxO40] (X = Si(1) and Ge(2), x = 0; X = P(3), x = 1) have been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction. They are isomorphic and consist of Keggin polyoxotungstate anions and a novel Mo/V-oxide-based cationic species, (Mo2V2O9(bpy)6](4+). The cationic species exhibits a finite Z-shaped chain, which is composed of corner-sharing {MoO4N2}. Octahedra and {VO2N4} octahedra via V-O-Mo-O-Mo-O-V mode. Electrochemical measurements of 1 and 3 show that three pairs of semi-reversible redox peaks are corresponding to redox processes of W and Mo centers. 1 and 3 are active catalysts for the hydroxylation of benzene with oxygen as the oxidant. Most interestingly, their active sites are on the cation [Mo2V2O9(bpy)(6)](4+) instead of the Keggin polyoxotungstate anions. (C) 2012 Elsevier B.V. All rights reserved.
关键词[WOS]: STATE COORDINATION CHEMISTRY ;  BOND-VALENCE PARAMETERS ;  CRYSTAL-STRUCTURE ;  HYDROTHERMAL SYNTHESIS ;  HYDROGEN-PEROXIDE ;  POLYOXOMETALATE ;  FRAMEWORK ;  CLUSTERS ;  COMPLEXES ;  LIGANDS
语种: 英语
WOS记录号: WOS:000312609400010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143064
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Liaoning Normal Univ, Inst Chem Functionalized Mat, Dalian 116029, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Wu, Qing,Yang, Hua,Cheng, Hong-Wei,et al. A new Mo/V-oxide-based cationic species templated by Keggin polyoxotungstates (4-) and its catalytic activity in benzene hydroxylation[J]. JOURNAL OF MOLECULAR STRUCTURE,2012,1030:83-88.
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