Beiträge zur Chemie der Schwefelhalogenide, 9 [1]. Trifhiormethyldichlorsulfonium(IV)-hexafluoroarsenat(V) / Contributions to the Chemistry of Sulfur Halides, 9 [1] Trifluoromethyldichlorosulfonium(IV) Hexafluoroarsenate(V )

Abstract

The synthesis of CF3SCl2 +AsF6 - is reported. The sulfonium salt is characterised by IR, Raman, 19F and 13C NMR spectroscopy. The vibrational assignment is based on a Cs model for the cation and assisted by a normal coordinate analysis. The crystal structure has been determined from three-dimensional diffractometer data at -133 K. The structural data for the cation are: C-F = 128.8(5) pm, C-S = 197,8(3) pm, S-Cl = 195,9(1) pm and F-C-F = 111,8(3)°, Cl-S-Cl = 104,22(5)°, C-S-Cl = 99,8(1)°.