Photochemical reaction oftrans-di(α-naphthyl)ethylene with diphenylamine

Diphenylamine adds to the ethylene bond of excitedtrans-di(α-naphthyl)ethylene (1). Dependence of the quantum yields of mono- and bi-molecular reactions of1,cis-di(α-naphthyl)ethylene2, and dihydropicene3 on amine concentration was studied. On this basis and theoretical analysis of the kinetic scheme a conclusion was drawn that amine interacts with excited1 with a diffusion-limited rate but has no effect on the photochemical activity of2 and3. The reaction mechanism was discussed.