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

Abstract

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