Faculté des sciences
Texte intégral

Cluster build-up in aqueous solution: synthesis, structure, protonation and catalytic properties of the trinuclear cation [(η6-C6H6)(η6-C6Me6)2Ru3(μ2-H)3(μ3-O)]+

Faure, Matthieu ; Jahncke, Manfred ; Neels, Antonia ; Stœckli-Evans, Helen ; Süss-Fink, Georg

In: Polyhedron, 1999, vol. 18, p. 2679-2685

The trinuclear oxo-capped cluster cation [(η6-C6H6)(η6-C6Me6)2Ru3 (μ2-H)3(μ3-O)]+ (2) was synthesised by reacting [(η6-C6Me6)Ru(H2O)3]2+ with... More

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    Title
    • Cluster build-up in aqueous solution: synthesis, structure, protonation and catalytic properties of the trinuclear cation [(η6-C6H6)(η6-C6Me6)2Ru3(μ2-H)3(μ3-O)]+
    Author
    • Faure, Matthieu. Institut de Chimie, Université de Neuchâtel, Switzerland
    • Jahncke, Manfred. Institut de Chimie, Université de Neuchâtel, Switzerland
    • Neels, Antonia. Institut de Chimie, Université de Neuchâtel, Switzerland
    • Stœckli-Evans, Helen. Institut de Chimie, Université de Neuchâtel, Switzerland
    • Süss-Fink, Georg. Institut de Chimie, Université de Neuchâtel, Switzerland
    Document Type
    • Postprint
    Publication Date
    • 1999-08-27
    OAI-PMH Identifier
    • oai:doc.rero.ch:20060503180542-CP
    Submission No.
    • 20060503180542-CP
    Summary
    The trinuclear oxo-capped cluster cation [(η6-C6H6)(η6-C6Me6)2Ru3 (μ2-H)3(μ3-O)]+ (2) was synthesised by reacting [(η6-C6Me6)Ru(H2O)3]2+ with [(η6-C6Me6)2Ru2(μ2-H)3]+ in aqueous solution. The single-crystal X-ray structure analysis of the tetrafluoroborate salt shows the cation to contain a H2O molecule hydrogen-bonded to the μ3-oxo ligand. Acidification experiments show two protonation steps occuring at this H2O molecule and the oxo cap of the triruthenium cluster. The cluster cation 2 catalyses the hydrogenation of aromatic compounds in aqueous solution under biphasic conditions.