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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 107 (1974), S. 317-338 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Photoelectron Spectra and Molecular Properties, XXVII. Chloro- and Bromoethylenes - Example for Modifications of π- and σ-SystemsThe photoelectron (PE) spectra of the mono- and disubstituted ethylenes display up to 9 distinct bands. The assignment, based on qualitative MO-models, is substantiated by spectroscopic comparison, perfluoro effects, and vibrational fine structures. From the assigned spectra MO-parameters are uniquely determined. Thus the differently extended π-systems can be described in terms of inductive and conjugative effects of the halogens.
    Notes: Die Photoelektronen (PE)-Spektren der mono- und disubstituierten Chlor- und Bromäthylene zeigen bis zu 9 isolierte Banden. Die Zuordnung anhand qualitativer MO-Modelle wird durch Spektrenvergleich, Perfluor-Effekte und Schwingungsfeinstrukturen gesichert. Aus den zugeordneten Spektren lassen sich MO-Parameter ablesen. Diese erlauben, die π-Systeme der verschiedenen Substitutionstypen mit induktiven und konjugativen Effekten der Halogene zu beschreiben.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
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