Einfiuss der Donator-Akzeptor-Wechselwirkung bei Stilbenen auf die Polarität im ersten angeregten Singulettzustand

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Abstract
The electric dipole moments of some substituted stilbenes in the ground (μg) and the first excited singlet state (μe) have been determined and discussed in regard of the donor-acceptor- interactions. A linear correlation between the Hammett σp-constants and the values of μg, μe and Δμ = μe - μg for different substituted stilbenes was found.