The Donor-Stabilized [PS2]+ Ion

Authors

  • Prof. Dr. Manfred Meisel,

    Corresponding author
    1. Institut für Chemie der Humboldt Universität Hessische Strasse 1-2, D-10115 Berlin (Germany) Fax: Int. code +(30) 2093-7468
    • Institut fü Chemie der Humboldt Universotät Hessische Strassc 1-2, D-10115 Berlin (Germany) Fax: Int. code +(30) 2093-7468
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  • Dr. Peter Lönnecke,

    1. Institut für Chemie der Humboldt Universität Hessische Strasse 1-2, D-10115 Berlin (Germany) Fax: Int. code +(30) 2093-7468
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  • Dr. Arnd-Rüdiger Grimmer,

    1. Institut für Chemie der Humboldt Universität Hessische Strasse 1-2, D-10115 Berlin (Germany) Fax: Int. code +(30) 2093-7468
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  • Dirk Wulff-Molder

    1. Institut für Chemie der Humboldt Universität Hessische Strasse 1-2, D-10115 Berlin (Germany) Fax: Int. code +(30) 2093-7468
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  • We thank the Wissenschaftler-Integrations-Programm (WIP) for financial support and Mrs. A. Rabis for recording the MAS-NMR spectra.

  • Dedicated to Professor Roger Blachnik on the occasion of his 60th birthday

Abstract

original image

With pyridine as a neutral electron-donor ligand, the [S [DOUBLE BOND] P [DOUBLE BOND] S]+ ion can be isolated as a salt [(C5H5N)2PS2]+X (X [DOUBLE BOND] Br, I) that is stabilized both in the solid state and in solution. The structures of these salts were characterized by NMR spectroscopy and X-ray crystal structure analysis (structure depicted on the right). The position of the equilibrium that exist between [(C5H5N)2 PS2]X and (C5H5N)PS2X in acetonitrile is dependent on the basicity of the halogen.

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