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Using Mulliken’s theory of intermolecular interactions the electron affinities of some cyclic olefines (electron acceptors) have been determined by measurement of the charge transfer energies of their complexes with the electron donors 2,5-dimethyl-2,4-hexadiene and hexamethylbenzene. These electron affinities are compared with MINDO/3-results. It is investigated whether a correlation of the experimental affinities and the calculated π-HOMO-energies is possible. Finally the expected dienophilicities of the olefines are discussed.

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Ermittlung der Elektronenaffinitäten von Maleinsäureanhydrid, -thioanhydrid, -imid und einiger ihrer disubstituierten Halogen- derivate über CT-Messungen und ihre semiempirische Berechnung (MINDO/3)