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- W2037629256 abstract "[(H)2Pt(AuPPh3)8]2+ is electrochemically reduced in a dihydrogen atmosphere at about −1.62 V in various solvents following a CEE reaction path. A chemical step (C), i.e. the fast dissociation into dihydrogen and [Pt(AuPPh3)8]2+, precedes the two closely spaced one-electron reduction steps (EE) shown by [Pt(AuPPh3)8]2+. Long-term experiments (controlled potential electrolysis) revealed that in a chemical follow-up reaction [HPt(AuPPh3)8]+ is formed. The reduced cluster, [Pt(AuPPh3)8]O reacts as a base with the starting dihydride cluster as an acid. In a basic solvent like pyridine [HPt(AuPPh3)8]+ undergoes a two-electron oxidation reaction. In chemical follow-up reactions the formed 3+ cluster reacts immediately with the solvent and dihydrogen and the starting material [HPt(AuPPh3)8]+ is regenerated and C5H5NH+ is formed. Thus an EC′ reaction mechanism is operative (C′ = catalytic reaction) in which dihydrogen is oxidised and whereby [HPt(AuPPh3)8]+ acts as the catalyst." @default.
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- W2037629256 date "1996-04-01" @default.
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- W2037629256 title "The electrochemical reactivity of [Pt(AuPPh3)8]2+ and [HPt(AuPPh3)8]+ under dihydrogen" @default.
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- W2037629256 doi "https://doi.org/10.1016/0020-1693(95)04824-3" @default.
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