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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1241-1246 
    ISSN: 0044-2313
    Keywords: Pentafluorosulfanylarnines ; rullanylammonium salts ; super-acids ; tetra-coordinated, hexacoordinated sulfur(VI) cations ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Pentafluorosulfanylamines and Sulfanylammonium Salts.From the addition of HF to sulfurtetrafluorideimides N-alkylpentafluorosulfanylamines RNHSF5(2a, 2b: R=CH3, C2H5) are obtained in quantitative yield. N, N-dialkylpentafluorosuIfanylamines Et2NSF5(5a) and pip-SF5 (5b) are isolated from the reaction of the appropriate sulfurdifluoronitridearnides NSF2NR2 and HF/SF4. Protonation of the amines with the superacidic system HF/AsF5 gives stable pentafluorosulfanyl-ammonium salts SF5NHRR′. AsF6 (12: R = R′ = CH3; 14: R=R′=H; 10: R=CH3, R′ = H). Under the same conditions the adduct AsF5· NSF2CF(CF3)2 (15) forms a cation with hexacoordinated sulfur (trans-H3NSF4CF(CF3)2-AsF66: 16), while with Asp5 · NSF2NMe2 (17) the reaction stops at tetracoordination (HNSF2NMe2+AsF6 : 18).
    Notes: Durch Addition von HF an die entsprechenden Schwefeltetrafluoridimide RN=SF4 werden N-Alkylpentafluorsulfanylamine RNHSF, (2a, 2b:) R=CH3, C2H5) in quantitativer Ausbeute erhalten. N, N-Dialkylpentafluorsulfanylamine Et2NSF5 (5a) und Pip-SF5 (5b) werden aus der Umsetzung der entsprechenden Schwefeldifluoridnitridamide NSF2NR2 mit HF/SF, isoliert. Die Protonierung der Amine durch das supersaure System HF/AsF5 liefert stabile Pentafluor-sulfanylammoniumsalze SF5NHRR′-AsF6- (12: R=R′=CH3; 14: R=R′=H; 10: R=CH3, R′=H). Aus der Umsetzung der Addukte AsF5·NSF2NMe2(17) wurde nur im ersten Falle ein Kation mit hexakoordiniertem Schwefel (trans-H3NSF4CF(CF3)2′ AsF6- : 16) isoliert, bei 17 bleibt die Reaktion auf der tetrakoordinierten Stufe (HNSF2NMe2′ AsF6-: 18) stehen.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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