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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 2557-2562 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis, Spectroscopic Properties, and Transannular Interactions of Tricyclic 1,2-CyclobutanedionesFour conformationally rigid and configurationally known tricyclic cyclobutanediones (4-7) have been synthesized to get deeper insight into the origin of those spectral changes which are observed after hydrogenating related conformationally mobile unsaturated α-diketones. It is possible to separate by UV-VIS and PES analysis transannular electronic interactions (order of 20 nm) from conformational effects (order of 70 nm).
    Notes: Die vier konformativ unbeweglichen und in ihrer Konfiguration bekannten tricyclischen Cyclobutandione 4-7 sind mit dem Ziel synthetisiert worden, tieferen Einblick in die Ursachen der spektroskopischen Veränderungen zu erhalten, die verwandte, jedoch konformativ bewegliche α-Diketone mit zunehmendem Hydrierungsgrad erfahren. Aufgrund der UV-VIS- und PES-Analyse ist es möglich, transannulare elektronische Wechselwirkungen (Größenordnung 20 nm) von konformativen Effekten (Größenordnung 70 nm) zu separieren.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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