Inorganica Chimica Acta, ( ISI ), Year (2007-5)

Title : ( SNTHESES AND STRUCTURAL DETERMINATION OF NEW BIS(9-TUNGSTOARSENATO) )

Authors: - - , Hossein Eshtiagh Hosseini , Mohammad Hasan Alizadeh Ghanad , pope ,

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Abstract The [As2W18U3O74]12 complex is formed by the ‘‘self-assembly’’ reaction of WO4 2;HAsO4 2 and UO2 2þ (uranyl nitrate) ions in acidic media. The anion complex is isolated as the potassium salt and characterized by elemental analysis, IR, UV–Vis, and X-ray single crystal analysis. The complex contains an anion in which three UO2 2þ ions are unsymmetrically sandwiched between two A-a- [AsW9O34]9 groups leading to a structure of C3v symmetry. Each uranium atom adopts pentagonal-bipyramidal coordination, achieved by three equatorial bonds to one [AsW9O34]9and two bonds to the other. The [As2W18U2V2O73]12and also [As2W18U3O74]12 complexes are formed also, by reaction of the [KAs2W18U2O72]13 with VO2+ and UO2 2þ ions in 1:1 mole ratio. The cyclic voltammogram of [As2W18U2VO73]12 in acetate buffer (pH 4.7) shows a reversible one-electron redox process for VIV/V

Keywords

Keywords: Polyoxometalates; Polytungstoarsenate(V); Uranyl cation; Single crystal
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@article{paperid:1008884,
author = { -, - and Eshtiagh Hosseini, Hossein and Alizadeh Ghanad, Mohammad Hasan and Pope},
title = {SNTHESES AND STRUCTURAL DETERMINATION OF NEW BIS(9-TUNGSTOARSENATO)},
journal = {Inorganica Chimica Acta},
year = {2007},
month = {May},
issn = {0020-1693},
keywords = {Keywords: Polyoxometalates; Polytungstoarsenate(V); Uranyl cation; Single crystal structure},
}

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%0 Journal Article
%T SNTHESES AND STRUCTURAL DETERMINATION OF NEW BIS(9-TUNGSTOARSENATO)
%A -, -
%A Eshtiagh Hosseini, Hossein
%A Alizadeh Ghanad, Mohammad Hasan
%A Pope
%J Inorganica Chimica Acta
%@ 0020-1693
%D 2007

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