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Relative quantum yields for the intramolecular electron transfer in N-[ω-(p-nitrophenoxy)alkyl]anilines1 and the analogues are determined. The role of through-bond and through-space pathways in the photorearrangement of 1(n=2-6) is discussed in connection with the quantum yields of the reaction in acetonitrile and benzene.
Magnetic field effects upon product yields are detectable for photoredox reactions of the chain molecules (4-nitrophenoxyl)-(methylene spacer)-(reductant) when the intersystem crossing rate between the singlet and triplet biradicals depends upon the magnetic field and the escape process involving the biradical intermediates and the starting species is relatively efficient. The magnitude of the magnetic...
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