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

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.

SUBMITTER: Fujibayashi M 

PROVIDER: S-EPMC6075703 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature

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Exploring the solvent mediated assembly and redox activity of a POM-organic hybrid [Na(SO<sub>3</sub>)<sub>2</sub>(PhPO<sub>3</sub>)<sub>4</sub>Mo<sup>V</sup><sub>4</sub>Mo<sup>VI</sup><sub>14</sub>O<sub>49</sub>]<sup>5</sup>.

Fujibayashi Masaru M   Song Yu-Fei YF   Cronin Leroy L   Tsunashima Ryo R  

New journal of chemistry = Nouveau journal de chimie 20160810 10

We report the electrochemical activity and the mechanism of formation of a mixed valence polyoxometalate-based organic hybrid cluster with the formula [Na(SO<sub>3</sub>)<sub>2</sub>(PhPO<sub>3</sub>)<sub>4</sub>Mo<sup>V</sup><sub>4</sub>Mo<sup>VI</sup><sub>14</sub>O<sub>49</sub>]<sup>5-</sup> (<b>1</b>). Electrochemical investigations of the mixed valence compound <b>1</b> showed three redox couples, in which the electrons were mainly delocalized over eight Mo sites. Furthermore, the synthesis  ...[more]

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