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Formation of a Phosphaferracyclopentadiene Ring by Coupling of a Phosphaalkyne with Two Fluoromethylidyne Ligands

Authors

  • Priv.-Doz. Dr. Dieter Lentz,

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    1. Institut für Anorganische und Analytische Chemie der Frien Universität, Fabeckstrasse 34–36, D-1000 Berlin 33
    • Institut für Anorganische und Analytische Chemie der Frien Universität, Fabeckstrasse 34–36, D-1000 Berlin 33
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  • Dipl.-Chem. Heike Michael

    1. Institut für Anorganische und Analytische Chemie der Frien Universität, Fabeckstrasse 34–36, D-1000 Berlin 33
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  • This work was supported by the Fonds der Chemischen Industrie, the Deutsche Forschungsgemeinschaft and the BASF AG (donation of pentacarbonyliron). We thank Prof. J. Fuchs for assistance with the crystal structure investigation and Dipl.-Chem. L. Turowsky for providing the compound tBuC[TRIPLE BOND]P

Abstract

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The pentagonal-bipyramidal closo-cluster 1 is the product of the reaction of tBu[BOND]C[TRIPLE BOND]P with [Fe3(CO)93-CF)2]. 1 contains an almost perfectly planar phosphaferracyclopentadiene moiety. According to the Wade rules 1 has a nonbonding pair of electrons on the phosphorus atom. Accordingly, with 16-electron fragments it forms stable complexes in which the cluster skeleton hardly changes.

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