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- W2058174002 abstract "The bimolecular rate constants (k) for the reactions of HPO4− radicals with phenol, fluorobenzene, chlorobenzene, bromobenzene, iodobenzene, benzonitrile, tert-butylbenzene and anisole (k = 5.3 × 108, 7 × 106, 6.9 × 106, 4 × 106, 1.2 × 107, 6.5 × 106, 1.0 × 108 and 4.6 × 107 M−1 s−1, respectively) have been determined by flash-photolysis of P2O84− solutions of pH 7.1 containing variable amounts of the organic substrates. The trend observed for the rate constants with the electron withdrawing ability of the substituents in the aromatic ring is discussed in terms of a Hammett type correlation. Phenoxyl type radical formation was observed in the reactions of HPO4˙− with chlorobenzene and phenol. Based on the experimental results, a possible reaction mechanism is proposed. Additional information on the decay kinetics of hydroxycyclohexadienyl radicals of chlorobenzene in the presence of molecular oxygen is also obtained from independent experiments with hydrogen peroxide solutions containing chlorobenzene under nitrogen, air and oxygen saturation." @default.
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- W2058174002 date "1998-01-01" @default.
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- W2058174002 title "Reactions of phosphate radicals with substituted benzenes. A structure–reactivity correlation study" @default.
- W2058174002 doi "https://doi.org/10.1039/a804614j" @default.
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