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  • 1
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 7 (1973), S. 53-55 
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Sequential loss of two substituents (CH3/CH3 and H/CH3 radicals, respectively) from the same atom (silicon), an unusual incidence in mass spectrometric fragmentation, is reported for 1,3,2-benzodioxasilols. In absence of obvious possibilities for skeletal rearrangement, geminal cleavage facilitated by low Si-C and Si-H bond energies is proposed.
    Notes: Ein stufenweiser Verlust von zwei Substituenten (CHC3/CH3 bzw. H/CH3 Radikale) dessenlben Zentralatoms (silicium), ein ungweöhnlicher Vorfall in der Massenspektrometrischen Fragmentierung, wird für 1,3,2-Benzodioxasilole berichtet. Da naheliegende Möglichkeiten für Skelettumlagerungen fehlen, wird eine durch die niedrigeren Si-C und Si-H Bindungsenergien erleichterte geminale spaltung vorgeschlagen.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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