Synthesis, Structure, and Electrochemical Properties of [Na(SO<sub>3</sub>)<sub>2</sub>(RPO<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> (R = Propyl or <i>t</i>-Butyl)

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Author(s)

    • Fujibayashi Masaru
    • Graduate School of Sciences and Technology for Innovation, Yamaguchi University
    • Shiga Misaki
    • Graduate School of Sciences and Technology for Innovation, Yamaguchi University
    • Tsunashima Ryo
    • Graduate School of Sciences and Technology for Innovation, Yamaguchi University

Abstract

<p>New mixed-valence polyoxometalate (POM)-organic hybrids, i.e., [Na(SO<sub>3</sub>)<sub>2</sub>(PrPO<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> and [Na(SO<sub>3</sub>)<sub>2</sub>(<i>t</i>-BuPO<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>, were synthesised and studied using crystallography, solution-phase <sup>31</sup>P NMR, and electrochemistry. These species comprise four organic phosphonates bonded to a metal oxide cage. Derivatization was achieved by considering the p<i>K</i><sub>a</sub> of the organic phosphonates and sulfite anions that acted as templates for the self-assembly of molybdate with POM. All the clusters were prepared in a water-acetonitrile mixed solvent system by a one-pot procedure and showed multi-step redox cycles, revealing that [Na(SO<sub>3</sub>)<sub>2</sub>(RPO<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> comprised a unique set of covalently grafted POM-organic hybrids with high redox activity.</p>

Journal

  • Bulletin of the Chemical Society of Japan

    Bulletin of the Chemical Society of Japan 92(5), 918-922, 2019

    The Chemical Society of Japan

Codes

  • NII Article ID (NAID)
    130007649780
  • Text Lang
    ENG
  • ISSN
    0009-2673
  • Data Source
    J-STAGE 
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