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- W2487267095 abstract "Aryl halides have an important role in photochemistry since a long time. Historically, studies of the phosphorescence of aromatics and of their halogenated derivatives have been instrumental in dening the modern concept of triplet state, and both the intersystem crossing [1] and the fragmentation of phenyl halides have been long known [2]. In the early years of these studies, attention was given more oen to photophysics than to photochemistry. is is because the introduction of electron-withdrawing substituents, such as halogen atoms, in the ring further increases the already high stability of aromatic compounds, both in the ground and excited states. Indeed, many aromatic compounds are quite photostable and the absorption of a photon leads to reemission rather than to reaction, since excitation causes only a partial decrease of the bonding character in the multiple π-electron array of such compounds and the rigid σ-bond skeleton disfavors geometric modications. Indeed, stability to chemical agents and to irradiation is characteristic of many aryl halides, and this family includes some notoriously persistent environmental pollutants, such as DDT and polychlorobiphenyls. However, photochemistry, albeit oen inecient, is one of the few available paths for the degradation of such compounds and thus this is16.1 Introduction 36916.2 Eect of Halide Substituents on the PhotophysicalParameters of Aromatics 37016.3 General Scheme of Photoreactivity 37216.4 Photochemical Reactions Not Involving16.7 ArSN2* Substitution Reactions 38216.8 ArSN1 Arylation Reactions 38216.9 Application to Depollution 386" @default.
- W2487267095 created "2016-08-23" @default.
- W2487267095 creator A5022014352 @default.
- W2487267095 creator A5061398027 @default.
- W2487267095 date "2012-03-21" @default.
- W2487267095 modified "2023-10-16" @default.
- W2487267095 title "Photochemistry of Aryl Halides" @default.
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- W2487267095 doi "https://doi.org/10.1201/b12252-17" @default.
- W2487267095 hasPublicationYear "2012" @default.
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