Optical spectra and kinetic characteristics of radicals formed upon the photolysis of aqueous solutions of a FeOHaq2+ complex and phenol

被引:0
作者
I. P. Pozdnyakov
Yu. A. Sosedova
V. F. Plyusnin
V. P. Grivin
D. Yu. Vorob’ev
N. M. Bazhin
机构
[1] Russian Academy of Sciences,Institute of Chemical Kinetics and Combustion, Siberian Branch
[2] Novosibirsk State University,undefined
来源
Russian Chemical Bulletin | 2004年 / 53卷
关键词
photochemistry; aqueous solutions; iron complexes; phenol; radicals; laser flash photolysis; optical spectra; kinetics;
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摘要
The nature, optical spectra, and kinetic characteristics were determined for intermediate radicals formed upon the photolysis of aqueous solutions of a FeOHaq2+ 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 FeIII complexes, recombination, and disproportionation. The final products of photochemical transformations were determined. Among them, o-quinone and diphenoquinones were identified.
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页码:2715 / 2722
页数:7
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