[Li(tmeda)]3P7—A Solvated Ion Complex of Trilithium Heptaphosphide

Authors

  • Dr. Wolfgang Hönle,

    1. Max-Planck-Institut für Festakörperforschung, Heisenbergstrasse 1, D-7000 Stuttgart 80 (FRG)
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  • Prof. Dr. Hans Georg von Schnering,

    Corresponding author
    1. Max-Planck-Institut für Festakörperforschung, Heisenbergstrasse 1, D-7000 Stuttgart 80 (FRG)
    • Max-Planck-Institut für Festakörperforschung, Heisenbergstrasse 1, D-7000 Stuttgart 80 (FRG)
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  • Prof. Dr. Alfred Schmidpeter,

    1. Institut für Anorganische Chemie der Universität, Meiserstrasse 1, D-8000 München 2 (FRG)
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  • Dipl.-Chem. Günther Burget

    1. Institut für Anorganische Chemie der Universität, Meiserstrasse 1, D-8000 München 2 (FRG)
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  • Chemistry and Structural Chemistry of Phosphides and Polyphosphides, Part 37.— Part 36: H. P. Abicht, W. Hönle, H. G. von Schnering, Z. Anorg. Allg. Chem., in press.

Abstract

A nice example for the stepwise transition from the polymeric solid to a solution in which solvated and separated ions predominate is provided by the Li3P7 system. In solvent-free Li3P7, all the P atoms participate in the coordination of the Li atoms, and the Li atoms always belong to several P7 groups, whereas in [Li(tmeda)]3P7 the Li atoms are only coordinated by the twofold bonded P atoms of one P7-group and by the solvent. The title complex can be regarded as a model for the species in solution. In this case the Li atoms would be of significance for the valence fluctuation in Pmath image.

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