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Issue 10, 2016
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Exploring the solvent mediated assembly and redox activity of a POM–organic hybrid [Na(SO3)2(PhPO3)4Mo V4Mo VI14O49]5−

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Abstract

We report the electrochemical activity and the mechanism of formation of a mixed valence polyoxometalate-based organic hybrid cluster with the formula [Na(SO3)2(PhPO3)4MoV4MoVI14O49]5− (1). Electrochemical investigations of the mixed valence compound 1 showed three redox couples, in which the electrons were mainly delocalized over eight Mo sites. Furthermore, the synthesis was investigated using 31P-NMR, which showed that the self-assembly of cluster 1 was triggered by the addition of organic solvents, and was largely independent of the nature of the solvents, suggesting that a decrease in the concentration of water promoted cluster assembly. Finally the stability of 1 was explored and we concluded that the use of phenylphosphonate allowed the covalent stabilization of the [MoV4MoVI14] core.

Graphical abstract: Exploring the solvent mediated assembly and redox activity of a POM–organic hybrid [Na(SO3)2(PhPO3)4MoV4MoVI14O49]5−

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Supplementary files

Article information


Submitted
07 Jun 2016
Accepted
04 Aug 2016
First published
10 Aug 2016

New J. Chem., 2016,40, 8488-8492
Article type
Paper

Exploring the solvent mediated assembly and redox activity of a POM–organic hybrid [Na(SO3)2(PhPO3)4MoV4MoVI14O49]5−

M. Fujibayashi, Y. Song, L. Cronin and R. Tsunashima, New J. Chem., 2016, 40, 8488
DOI: 10.1039/C6NJ01774F

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