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- W3110033456 abstract "Cobalt complexes with 2-(diisopropylphosphinomethyl)pyridine (PN) ligands have been synthesized with the aim of demonstrating electrocatalytic proton reduction to dihydrogen with a well-defined hydride complex of an Earth-abundant metal. Reactions of simple cobalt precursors with 2-(diisopropylphosphino-methyl)pyridine (PN) yield [CoII(PN)2(MeCN)][BF4]2 1, [CoIII(PN)2(H)(MeCN)][PF6]2 2, and [CoIII(PN)2(H)(Cl)][PF6] 3. Complexes 1 and 3 have been characterized crystallographically. Unusually for a bidentate PN ligand, all three exhibit geometries with mutually trans phosphorus and nitrogen ligands. Complex 1 exhibits a distorted square-pyramidal geometry with an axial MeCN ligand in a low-spin electronic state. In complexes 2 and 3, the PN ligands lie in a plane leaving the hydride trans to MeCN or chloride, respectively. The redox behavior of the three complexes has been studied by cyclic voltammetry at variable scan rates and by spectroelectrochemistry. A catalytic wave is observed in the presence of trifluoroacetic acid (TFA) at an applied potential close to the Co(II/I) couple of 1. Bulk electrolysis of 1, 2, or 3 at a potential of ca. −1.4 V vs E(Fc+/Fc) in the presence of TFA yields H2 with Faradaic yields close to 100%. A catalytic mechanism is proposed in which the pyridine moiety of a PN ligand acts as a pendant proton donor following opening of the chelate ring. Additional mechanisms may also operate, especially in the presence of high acid concentration where speciation changes." @default.
- W3110033456 created "2020-12-07" @default.
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- W3110033456 creator A5042876680 @default.
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- W3110033456 date "2020-12-04" @default.
- W3110033456 modified "2023-10-16" @default.
- W3110033456 title "Electrocatalytic Proton Reduction by a Cobalt(III) Hydride Complex with Phosphinopyridine PN Ligands" @default.
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- W3110033456 cites W1977063145 @default.
- W3110033456 cites W1977968927 @default.
- W3110033456 cites W1986480988 @default.
- W3110033456 cites W1986632856 @default.
- W3110033456 cites W2002378425 @default.
- W3110033456 cites W2014478276 @default.
- W3110033456 cites W2016452536 @default.
- W3110033456 cites W2017828627 @default.
- W3110033456 cites W2019007515 @default.
- W3110033456 cites W2019692171 @default.
- W3110033456 cites W2020297913 @default.
- W3110033456 cites W2022654083 @default.
- W3110033456 cites W2024382446 @default.
- W3110033456 cites W2024512431 @default.
- W3110033456 cites W2025125547 @default.
- W3110033456 cites W2027694874 @default.
- W3110033456 cites W2028361335 @default.
- W3110033456 cites W2038102131 @default.
- W3110033456 cites W2038312285 @default.
- W3110033456 cites W2041930594 @default.
- W3110033456 cites W2048246106 @default.
- W3110033456 cites W2051864945 @default.
- W3110033456 cites W2059205366 @default.
- W3110033456 cites W2061708803 @default.
- W3110033456 cites W2065818181 @default.
- W3110033456 cites W2065843750 @default.
- W3110033456 cites W2069832623 @default.
- W3110033456 cites W2076861189 @default.
- W3110033456 cites W2085614831 @default.
- W3110033456 cites W2099037802 @default.
- W3110033456 cites W2132454074 @default.
- W3110033456 cites W213373916 @default.
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- W3110033456 cites W2171329495 @default.
- W3110033456 cites W2270318784 @default.
- W3110033456 cites W2271627776 @default.
- W3110033456 cites W2313387309 @default.
- W3110033456 cites W2315313870 @default.
- W3110033456 cites W2327864149 @default.
- W3110033456 cites W2332728238 @default.
- W3110033456 cites W2345472740 @default.
- W3110033456 cites W2346021612 @default.
- W3110033456 cites W2419503220 @default.
- W3110033456 cites W2424080235 @default.
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- W3110033456 doi "https://doi.org/10.1021/acs.inorgchem.0c02505" @default.
- W3110033456 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33275426" @default.
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