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Synthesis and Characterization of Tetramethylammonium Trifluorosulfate

Authors

  • Dipl.-Chem. Christian Hohenstein,

    1. Department of Chemistry, Ludwig-Maximilians-University, Butenandtstrasse 5–13, 81377 Munich (Germany)
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  • Dr. Daniel Kadzimirsz,

    1. Faculty of Chemistry, Technische Universität Dortmund, Otto-Hahn-Str. 6, 44221 Dortmund (Germany)
    2. Present address: Oxea Deutschland GmbH, Otto-Roelen-Str. 3, 46147 Oberhausen (Germany)
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  • Prof. Dr. Ralf Ludwig,

    1. Physical Chemistry, Universität Rostock, Dr.-Lorenz-Weg, 18051 Rostock (Germany) and Leibniz Institute for Catalysis, Albert-Einstein-Str. 29a, 18059 Rostock (Germany)
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  • Prof. Dr. Andreas Kornath

    Corresponding author
    1. Department of Chemistry, Ludwig-Maximilians-University, Butenandtstrasse 5–13, 81377 Munich (Germany)
    • Department of Chemistry, Ludwig-Maximilians-University, Butenandtstrasse 5–13, 81377 Munich (Germany)
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Abstract

[Me4N]+[SO2F3], the first example of a [SO2F3] salt, has been prepared from Me4NF and SO2F2. The colorless, microcrystalline solid was characterized by its infrared and Raman spectra. The trigonal bipyramidal structure of C2v symmetry of the [SO2F3] anion is predicted by ab initio calculations. Two oxygen atoms with d(SO)=143.2 pm and one fluorine atom with d(SF)=157.9 pm occupy the equatorial plane. The two fluorine atoms in the axial position with d(SF)=168.5 pm are repulsed by the two oxygen atoms forming a bent axis with ∡(FaxSFax)=165.2°.

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