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1,2-Bis[trifluorosulfur(IV)]tetrafluoroethane F3S-CF2-CF2-SF3: A Bifunctional Molecule with Two Fluoroamphoteric Sulfur Centers⋆ (1998)

Viets, Detlef ; Heilemann, Werner ; Lork, Enno ; [weitere]

Weinheim : Wiley-Blackwell

Berichte der deutschen chemischen Gesellschaft 1998 (1998), S. 1035-1039

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Details

ISSN: 1434-1948

Schlagwort(e): α,ω-Bis(trifluorosulfur)perfluoroalkanes ; α,ω-Bis(fluorosulfinyl)alkanes ; Fluorosulfur anions ; Fluorosulfur cations ; Ab initio calculations ; Chemistry ; General Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: The title compound (-CF2-SF3)2 (2) is prepared from (-CF2-SCl)2 (1) and F2 at -90 °C in 83 % yield. Reaction of 2 with CsF and TASF yields Cs[(-CF2-SF3)2F] (8), TAS [(-CF2SF3)2F] (9) and (TAS)2[(-CF2-SF4)2] (10). Fluoride-ion abstraction yields [(-CF2SF2)2F] [AsF6] (6), BF3-catalysed solvolysis in SO2 gives [-CF2-S(O)F]2 (4), and CsF-catalysed oxidation with F2 leads to the previously reported (-CF2-SF5)2 (11). Ab initio calculations of the molecular structures of 2 and the related methane derivative F2C(SF3)2 are reported.

Materialart: Digitale Medien

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