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[Ge12{FeCp(CO)2}8{FeCp(CO)}2]: A Ge12 Core Resembles the Arrangement of the High-Pressure Modification Germanium (II)

Authors

  • Dr. Christian Schenk,

    1. Institut für Allgemeine und Anorganische Chemie, Universität Heidelberg, Im Neuenheimer Feld 270,69120 Heidelberg (Germany)
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  • Dr. Florian Henke,

    1. Institut für Anorganische Chemie, Karlsruher Institut für Technologie, KIT-Campus Süd, Postfach 6980, 76049 Karlsruhe (Germany)
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  • Prof. Dr. Andreas Schnepf

    Corresponding author
    1. Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen (Germany)
    • Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen (Germany)
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  • We are grateful to the Deutsche Forschungsgemeinschaft (DFG) for financial support and the Alexander von Humboldt foundation for a return fellowship (C.S.). We also thank the Monash Sun Grid (Monash University) for providing computational time. Furthermore, we thank the KIT for granting access to the synchrotron light source ANKA and Dr. G. Buth for help during the performed single crystal measurement.

Abstract

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Similar yet different: The reaction of a GeBr solution with K[FeCp(CO)2] (Cp=η-C5H5) gives [Ge12{FeCp(CO)2}8{FeCp(CO)}2] (1), whose oblong, highly cross-linked cluster core reveals a cut-out of the high-pressure solid-state structure of germanium (II) (see scheme). Mass spectrometric investigations on the gas-phase species [Ge6{FeCp(CO)2}6{FeCp(CO)}] (2) and theoretical calculations on 1 and 2 illuminate the formation of the metalloid cluster 1.

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