Redox-Induced Reversible P[BOND]P Bond Formation to Generate an Organometallic σ4λ4-1,2-Biphosphane Dication

Authors

  • Ayham Tohmé,

    1. Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226), Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex (France)
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  • Dr. Guillaume Grelaud,

    1. Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226), Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex (France)
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  • Dr. Gilles Argouarch,

    1. Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226), Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex (France)
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  • Dr. Thierry Roisnel,

    1. Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226), Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex (France)
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  • Dr. Stéphanie Labouille,

    1. Laboratoire Hétéroéléments et Coordination, CNRS (UMR 7653), Ecole Polytechnique, 91128 Palaiseau Cedex (France)
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  • Dr. Duncan Carmichael,

    Corresponding author
    1. Laboratoire Hétéroéléments et Coordination, CNRS (UMR 7653), Ecole Polytechnique, 91128 Palaiseau Cedex (France)
    • Duncan Carmichael, Laboratoire Hétéroéléments et Coordination, CNRS (UMR 7653), Ecole Polytechnique, 91128 Palaiseau Cedex (France)===

      Frédéric Paul, Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226), Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex (France)===

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  • Dr. Frédéric Paul

    Corresponding author
    1. Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226), Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex (France)
    • Duncan Carmichael, Laboratoire Hétéroéléments et Coordination, CNRS (UMR 7653), Ecole Polytechnique, 91128 Palaiseau Cedex (France)===

      Frédéric Paul, Institut des Sciences Chimiques de Rennes, CNRS (UMR 6226), Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex (France)===

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  • G.G. thanks the Région Bretagne for a scholarship. The ANR Blanc program is acknowledged for financial support (ANR 2010 BLAN 719). The Polytechnique laboratory is part of the EC COST funded network “PhoSciNet” CM0802.

Abstract

original image

Twice the fun: Dimeric FeII diphosphonium bis(alkynyl) complexes are formed by oxidation of the corresponding FeII alkynyl phosphine complexes. The structure of these organometallic diphosphonium salts and their monomeric precursors were established by X-ray crystallography. The P[BOND]P bond can be cleaved by two-electron reduction to regenerate the monomers.

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