Optical spectra and kinetic characteristics of radicals formed upon the photolysis of aqueous solutions of a FeOH_aq²⁺ complex and phenol

Author： Pozdnyakov I. Sosedova Yu. Plyusnin V. Grivin V. Vorob’ev D. Bazhin N.

Publisher： Springer Publishing Company

ISSN： 1066-5285

Source： Russian Chemical Bulletin, Vol.53, Iss.12, 2004-12, pp. : 2715-2722

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Abstract

The nature, optical spectra, and kinetic characteristics were determined for intermediate radicals formed upon the photolysis of aqueous solutions of a FeOH_aq²⁺ complex with phenol additives. The primary radical ^·OH reacts with phenol to form ortho- and para-isomers of the Ph(OH)₂^· radical. The Ph(OH)₂^· radical eliminates a water molecule to form a phenoxyl radical PhO^·. The latter disappears in the reactions with Fe^III complexes, recombination, and disproportionation. The final products of photochemical transformations were determined. Among them, o-quinone and diphenoquinones were identified.