Ring-Strained Carbodiphosphoranes

Authors

  • Prof. Dr. Hubert Schmidbaur,

    1. Anorganisch-chemisches Institut der Technischen Universität München, Lichtenbergstrasse 4, D-8046 Garching (Germany)
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  • Dipl.-Chem. Thomas Costa,

    1. Anorganisch-chemisches Institut der Technischen Universität München, Lichtenbergstrasse 4, D-8046 Garching (Germany)
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  • Dipl.-Chem. Beatrix Milewski-Mahrla,

    1. Anorganisch-chemisches Institut der Technischen Universität München, Lichtenbergstrasse 4, D-8046 Garching (Germany)
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  • Dr. Ulrich Schubert

    Corresponding author
    1. Anorganisch-chemisches Institut der Technischen Universität München, Lichtenbergstrasse 4, D-8046 Garching (Germany)
    • Anorganisch-chemisches Institut der Technischen Universität München, Lichtenbergstrasse 4, D-8046 Garching (Germany)
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Abstract

original image

The first rings to contain the structural unit P[DOUBLE BOND]C[DOUBLE BOND]P have been obtained by reaction of Ph2PCH2PPH2 with Br(CH2)nBr (n = 2, 3, 4). The chemical properties and the bond lengths and angles in carbodiphosphorane with n = 2 are best described by the following formulation:

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