Dithia Dications from Cyclic and Acyclic Precursors by Gas-Phase Oxidation (“Charge Stripping”) of 3e/2c-Radical Cations

Authors

  • Dr. Thomas Drewello,

    1. Institut für Organische Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, D-1000 Berlin 12
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  • Dr. Carlito B. Lebrilla,

    1. Institut für Organische Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, D-1000 Berlin 12
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  • Prof. Dr. Klaus-Dieter Asmus,

    1. Hahn-Meitner Institut Berlin G.m.b.H., Bereich Strahlenchemie, Postfach 39 01 28, D-1000 Berlin 39
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  • Prof. Dr. Helmut Schwarz

    Corresponding author
    1. Institut für Organische Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, D-1000 Berlin 12
    • Institut für Organische Chemie, Technische Universität Berlin, Strasse des 17. Juni 135, D-1000 Berlin 12
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  • This work was supported by the Deutsche Forschungsgemeinschaft, the Fonds der Chemischen Industrie, and the Gesellschaft von Freunden der Technischen Universität Berlin. We thank Dr. E. Anklam for synthesizing some of the dithia compounds.

  • Dedicated to Professor Christoph Rüchardt on the occasion of his 60th birthday

Abstract

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What cannot be accomplished in solution is readily achieved in the gas phase by “charge-stripping” mass spectrometry: generation of dications from radical cations of acyclic thioethers (e.g., 12). Ionization energies for the oxidation are in good agreement with the predictions of qualitative MO treatments of the bonding in three-electron two-center radical cations.

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