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  • 1
    ISSN: 0044-2313
    Keywords: Cyanhalogenomethyl salts ; dicyanhalosulfonium salts ; methylthionitrilium metallates ; (μ-thio)bisnitriliumhexafluoro metallates ; preparation ; i.r., n.m.r. data ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation of Cyanhalogenomethyl and Dicyanhalogensulfonium Salts CH3(CN)SHal+MF6- and (CN)2SHal+MF6- (Hal = F, Cl, Br, I; M = As, Sb) and Methylthionitrilium and (μ-Thio)bisnitriliumhexafluoro Metallates CH3SCNX+MF6- and S(CNH)22+ (MF6-)2 (X = H, D)Oxidative halogenation of CH3SCN and S(CN)2 with XeF+MF6-, Cl2/MF5/SO2, Br2/MF5/SO2 and I3+MF6- leads to S-coordinated cations. The complete spectroscopic series of the halogensulfonium salts CH3S(CN)Hal+MF6- and (CN)2SHal+MF6- (Hal = F, Cl, Br, I; M = As, Sb) as well as hexafluoroarsenate and -antimonate were recorded.However the protonation of divalent cyansulfanes in superacidic media HF/MF5 takes place at the nitrogen atom to nitrilium salts in analogy to the adduct formation with strong Lewis acids.
    Notes: Bei der oxidativen Halogenierung von CH3SCN und S(CN)2 mit XeF+MF6-, Cl2/MF5/SO2, Br2/MF5/SO2 und I3+MF6- erfolgt eine Koordination am Schwefel, und es wurden die kompletten spektroskopischen Reihen der S-Halogensulfoniumsalze CH3S(CN)Hal+MF6- und (CN)2SHal+MF6-(Hal = F, Cl, Br, I; M = As, Sb) jeweils als Hexafluoroarsenat und -antimonat hergestellt.Dagegen erfolgt die Protonierung der divalenten Cyansulfane im supersauren Milieu HF/MF5 am Stickstoff zu Nitriliumsalzen analog wie die Koordination bei der Adduktbildung mit starken Lewissäuren.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
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