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Octahedral Pd2+ Coordination and Ferromagnetic Ordering in Pd(S2O7)

Authors

  • M. Sc. Jörn Bruns,

    1. Carl von Ossietzky Universität Oldenburg, Institut für Reine und Angewandte Chemie, Carl-von-Ossietzky Strasse 9–11, 26129 Oldenburg (Germany)
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  • Dipl.-Chem. Matthias Eul,

    1. Westfälische Wilhelms Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstrasse 30, 48149 Münster (Germany)
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  • Prof. Dr. Rainer Pöttgen,

    1. Westfälische Wilhelms Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstrasse 30, 48149 Münster (Germany)
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  • Prof. Dr. Mathias S. Wickleder

    Corresponding author
    1. Carl von Ossietzky Universität Oldenburg, Institut für Reine und Angewandte Chemie, Carl-von-Ossietzky Strasse 9–11, 26129 Oldenburg (Germany)
    • Carl von Ossietzky Universität Oldenburg, Institut für Reine und Angewandte Chemie, Carl-von-Ossietzky Strasse 9–11, 26129 Oldenburg (Germany)
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  • Financial support of the Deutsche Forschungsgemeinschaft, and the Stiftung der Metallindustrie im Nordwesten is gratefully acknowledged. We thank Dipl.-Chem. Wolfgang Saak for the collection of the X-ray data.

Abstract

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It's hip not to be square: The oxidation of elemental palladium with SO3 leads to Pd(S2O7) in which the Pd2+ is in an octahedral coordination environment of oxygen atoms (see structure Pd red, O blue, S yellow) and not the usual square-planar environment for Pd2+ species. This unexpected geometry leads to the observed paramagnetism of the compound with ferromagnetic ordering at 11.7 K.

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