Synthesis and structural characterization of Lindqvist type mixed-metal cluster anion [V2W4O19]4- in discrete and coordination polymer compounds

被引：10

作者：

Yerra, Sridevi ^{[1
]}

Amanchi, Srinivasa Rao ^{[1
]}

Das, Samar K. ^{[1
]}

机构：

[1] Univ Hyderabad, Sch Chem, Hyderabad 500046, Andhra Pradesh, India

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2014年 / 1062卷

关键词：

Vanadium substituted Lindqvist type polyoxometalate cluster anion; Coordination polymer; Supramolecular interactions; Spectroscopy; TUNGSTOVANADATE HETEROPOLY COMPLEXES; CRYSTAL-STRUCTURE; POLYOXOTUNGSTATE PM-19; FACE INTERACTIONS; POLYOXOMETALATE; SALTS;

D O I：

10.1016/j.molstruc.2014.01.005

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two vanadium substituted Lindqvist type tungsten heteropolyanion containing compounds with molecular formulae [HMTAH](2)[H2V2W4O19]center dot 4H(2)O (1) and [Na-2(H2O)(4)](n)[H2V2W4O19](n)center dot 2nHMTA-2nH(2)O (2) have been synthesized, where HMTA is hexamethylenetetramine. Compound 1 is a discrete compound, whereas, compound 2 is a coordination polymer. Compounds 1-2 are characterized by routine elemental analyses, FT-IR spectroscopy, electronic absorption spectral analyses, thermogravimetric studies and single crystal X-ray crystallography. The presence of vanadium in the cluster anion is confirmed by V-51 NMR spectroscopy, EDS and ICP analyses. The crystal structures of compounds 1 and 2 are refined in ortho-rhombic space group Immm and monoclinic space group C2/c respectively. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：53 / 60

页数：8

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