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Issue 1, 2003
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17O NMR study of aqueous peroxoisopolymolybdate equilibria at lower peroxide/Mo ratios

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Abstract

Aqueous peroxomolybdates have been studied using 17O NMR together with equilibrium measurements and calculations, over a wide range of conditions. Ten peroxo species are identified, mostly in more than one state of protonation. Some are already known in the solid state, or from equilibrium analysis, but structural information is also obtained for MoO3(HO2) and the new or previously tentative species Mo2O5(O2)22−, HpMo7O23(O2)2p−6 and HpMo7O23(O2)p−6 (p = 0–2). Sites of protonation are identified, as are 17O resonances from both bidentate and monodentate peroxide. Several oxygen exchange processes are also seen, including a probable dimer–tetramer exchange.

Graphical abstract: 17O NMR study of aqueous peroxoisopolymolybdate equilibria at lower peroxide/Mo ratios

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Article information


Submitted
02 Jul 2002
Accepted
12 Nov 2002
First published
03 Dec 2002

Dalton Trans., 2003, 146-152
Article type
Paper

17O NMR study of aqueous peroxoisopolymolybdate equilibria at lower peroxide/Mo ratios

L. Pettersson, I. Andersson, F. Taube, I. Toth, M. Hashimoto and O. W. Howarth, Dalton Trans., 2003, 146
DOI: 10.1039/B206396B

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