New lithium tungstophosphate complex. synthesis, crystal structure. Catalytic properties of a tetranuclear cobalt complex with tungstenphosphate ligands and lithium countercation in the reaction of photochemical water oxidation in artificial photosynthesis
- Authors: Dzhabieva Z.M.1, Shilov G.V.1, Avdeeva L.V.1, Savinykh T.A.1, Dzhabiev T.S.1
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Affiliations:
- Federal Research Center for Problems of Chemical Physics and Medical Chemistry of the Russian Academy of Sciences
- Issue: Vol 69, No 7 (2024)
- Pages: 964-972
- Section: СИНТЕЗ И СВОЙСТВА НЕОРГАНИЧЕСКИХ СОЕДИНЕНИЙ
- URL: https://journals.rcsi.science/0044-457X/article/view/274215
- DOI: https://doi.org/10.31857/S0044457X24070038
- EDN: https://elibrary.ru/XOOSHS
- ID: 274215
Cite item
Abstract
Polyoxotungstophosphate complex Li7[γ-PW10O36] · 7H2O was synthesized. Structure was studied by the X-ray method. Rhombic crystals, space group P21212, a = 12.401(3) b = 18.948(4), c = 9.636(2) Å, V = 2265 Å3, Z = 2 (the heteropolyanion sits on a crystallographic twofold axis), λ = 0.71069 Å. The complex is thermostable. The interaction of Li7W10PO36 with Co(NO3)2 forms a tetranuclear complex Co(II) Li7[Co4(H2O)2(γ-PW10O36)2] · 36H2O – an effective catalyst for the water oxidation to O2. The number of turns of the catalyst is TON = 330, the quantum yield of photogenerated oxygen is ФO₂ = 0.46.
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About the authors
Z. M. Dzhabieva
Federal Research Center for Problems of Chemical Physics and Medical Chemistry of the Russian Academy of Sciences
Email: dzhabiev@icp.ac.ru
Russian Federation, Chernogolovka
G. V. Shilov
Federal Research Center for Problems of Chemical Physics and Medical Chemistry of the Russian Academy of Sciences
Email: dzhabiev@icp.ac.ru
Russian Federation, Chernogolovka
L. V. Avdeeva
Federal Research Center for Problems of Chemical Physics and Medical Chemistry of the Russian Academy of Sciences
Email: dzhabiev@icp.ac.ru
Russian Federation, Chernogolovka
T. A. Savinykh
Federal Research Center for Problems of Chemical Physics and Medical Chemistry of the Russian Academy of Sciences
Email: dzhabiev@icp.ac.ru
Russian Federation, Chernogolovka
T. S. Dzhabiev
Federal Research Center for Problems of Chemical Physics and Medical Chemistry of the Russian Academy of Sciences
Author for correspondence.
Email: dzhabiev@icp.ac.ru
Russian Federation, Chernogolovka
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