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- W2009469632 abstract "The tunnel effect theory, which has previously been employed to interpret the reactivity and efficiency of photochemical hydrogen abstractions, is extended to the interpretation of the α cleavage of ketones. The theory has been used to calculate the reactivity of a large number of ketones and good agreement is found between calculated and experimental values. The reactivity towards α cleavage depends essentially on the strength of the COCα bond, and is also affected by the reduction potential of the ketones. The results of the present model are compared with those from thermal activation studies. It is found that, within the approximations of the models, thermal activation rate constants never exceed those for nuclear tunnelling. The conventional view of the 3(n,π*) excited states of ketones as alkoxy radicals is questioned." @default.
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- W2009469632 date "1985-12-01" @default.
- W2009469632 modified "2023-10-16" @default.
- W2009469632 title "Photochemical α cleavage of ketones as radiationless transitions" @default.
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- W2009469632 doi "https://doi.org/10.1016/0047-2670(85)85100-5" @default.
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