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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 107 (1974), S. 1393-1402 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Bishomofulvene Conjugation. Photoelectron Spectra and Electronic Structure of Homologous QuadricyclanesIn order to obtain the orbital sequence in bishomofulvene 3 and „snouten“ 4 their photoelectron spectra have been interpreted together with those of the homologous quadricyclanes 2, 5, and 6. In 3 a strong interaction prevails between the two cyclopropane moieties on the one side and the three-membered rings and the double bond on the other side. The fact that the first ionization potential of “snoutene” 4 equals that of cyclopropa-bicyclo[2.2.2]octene 13 may be explained by two opposite effects. The sequence in 2 is then compared to that of its neighbours in the homologous series, triasterane 14 and quadricyclane 15.
    Notes: Um die Orbitalsequenz im Bishomofulven 3 und im „Snouten“ 4 zu erhalten, wurden ihre Photoelektronenspektren zusammen mit denen der homologen Quadricyclane 2, 5 und 6 interpretiert. In 3 herrscht eine starke Wechselwirkung Dreiring-Dreiring einerseits und Dreiring-Doppelbindung (β = -1.7eV) andererseits. Die Tatsache, daß das erste Ionisationspotential von „Snouten“ 4 Praktisch das gleiche ist wie das von Cyclopropabicyclo[2.2.2]octen 13, läßt sich auf zwei gegenläufige Effekte zurückführen. Die Sequenz von 2 wird mit der seiner beiden Nachbarn in der homologen Reihe, Triateran 14 und Quadricyclan 15, verglichen.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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