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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 1931-1938 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Boron, LXXXIII. The Anomalous Dimerisation of 3,5-Difluoro-1,2,4-trimethyl-1,2,4,3,5-triazadiborolidineSbF3- or BF3-fluorination of 3,5-bis(methylthio)- (1e) or 3,5-bis(dimethylamino)-1,2,4-trimethyl-1,2,4,3,5-triazadiborolidine (1c) leads to formation of the difluoro derivative 1a which is dimeric (3a). The „anomalous“ dimerisation, involving fluoride migration, is deduced from n. m. r. spectra and has been confirmed by X-ray crystallography of the dimer: it contains the structure elements BN4 and N2BF2.
    Notes: Das durch SbF3-bzw. BF3-Fluorierung von 3,5-Bis(methylthio)-(1e) bzw. 3,5-Bis(dimethylamino)-1,2,4-trimethyl-1,2,4,3,5-triazadiborolidin (1c) darstellbare Difluorderivat 1a liegt dimer als 3a vor. Die aus NMR-Spektren ableitbare „anomale“ Dimerisierung, die mit einer Fluorid-Wanderung verbunden ist, wird durch die Röntgenstrukturanalyse des Dimeren bestätigt: dieses enthält BN4- und N2BF2-Strukturelemente.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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