Novel Doped Tungstovanadate and Molybdovanadate with Bi-antimony-Capped Keggin Structure

被引：11

作者：

Han, Zhangang ^{[1
]}

Wu, Jingjing ^{[1
]}

Gao, Yuanzhe ^{[1
]}

Zhai, Xueliang ^{[1
]}

机构：

[1] Hebei Normal Univ, Coll Chem & Mat Sci, Shijiazhuang 050016, Hebei, Peoples R China

来源：

AUSTRALIAN JOURNAL OF CHEMISTRY | 2011年 / 64卷 / 02期

基金：

中国博士后科学基金;

关键词：

ORGANIC HYBRID POLYOXOMETALATE; HIGHLY REDUCED POLYOXOANION; HYDROTHERMAL SYNTHESIS; CRYSTAL-STRUCTURE; CLUSTERS; HETEROPOLYVANADATE; PHOSPHORUS; COMPLEXES; HETEROPOLYOXOMOLYBDATES; POLYANION;

D O I：

10.1071/CH10220

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Three novel V-centred Keggin-based compounds containing cap-shaped Sb atoms: (HDMF)(2)[(VO4)W5.65V7.74 Sb2.61O36.77]center dot 6H(2)O (1), [Co(phen)(3)](2)[(VO4)Mo9.58V2.42Sb2O36]center dot 6H(2)O (2) and [Ni(phen)(2)(H2O)](2)[(VO4)Mo8V4Sb2 O-36]center dot 2H(2)O (3) (DMF = dimethylformamide; phen = 1,10-phenanthroline) have been synthesized and characterized. X-ray diffraction analysis revealed that compound 1 consists of an unusually one-dimensional 12-tungstovanadate Keggin-based polymer, in which the reduced tungstovanadate Keggin species are stabilized by introducing capping {VO} and {Sb} groups and then linked into chains via V(Sb)-O-V(Sb) interactions. Both 2 and 3 are built from secondary metal-ligand groups (Co-phen for 2, Ni-phen for 3) and 12-molybdovanadate doped Keggin-type cores with two antimony atoms capping two opposite sites. The anion in 3 represents a bi-capped and bi-supported Keggin-type structure. The electrochemical properties of 2- and 3-modified carbon paste electrodes (2-CPE and 3-CPE) are also studied.

引用

页码：197 / 205

页数：9

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