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Coordination of Pt(IV) by {P<sub>8</sub>W<sub>48</sub>} Macrocyclic Inorganic Cavitand: Structural, Solution, and Electrochemical Studies

DOI

15

Citations

69

References

2022

Year

Anna A. Kuznetsova, Victoria V. Volchek, Vadim V. Yanshole, Nikolay B. Kompankov, Vasily V. Kokovkin, Artem L. Gushchin, Pavel A. Abramov⧫, Maxim N. Sokolov⧫
Inorganic Chemistry

Abstract

Hydrothermal reaction of a macrocyclic inorganic POM cavitand Li<sub>17</sub>(NH<sub>4</sub>)<sub>21</sub>H<sub>2</sub>[P<sub>8</sub>W<sub>48</sub>O<sub>184</sub>] with [Pt(H<sub>2</sub>O)<sub>2</sub>(OH)<sub>4</sub>] results in coordination of up to six {Pt(H<sub>2</sub>O)<sub><i>x</i></sub>(OH)<sub>4-<i>x</i></sub>} fragments to the internal surface of the polyoxoanion. The product was isolated as K<sub>22</sub>(NH<sub>4</sub>)<sub>9</sub>H<sub>3</sub>[{Pt(OH)<sub>3</sub>(H<sub>2</sub>O)}<sub>6</sub>P<sub>8</sub>W<sub>48</sub>O<sub>184</sub>]·79H<sub>2</sub>O (<b>1</b>) and characterized by multiple techniques in the solid state (SCXRD, XRPD, XPS, FTIR, and TGA) and in solution (NMR, ESI-MS, and HPLC-ICP-AES). Electrochemical properties were studied both in solution and as components of the paste electrode. The complex shows electrocatalytic activity in water oxidation.

References

YearCitations

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