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Oxidation of hydroquinones by a nonheme iron(IV)-oxo species

Title
Oxidation of hydroquinones by a nonheme iron(IV)-oxo species
Authors
Nehru K.Jang Y.Oh S.Dallemer F.Nam W.Kim J.
Ewha Authors
남원우김진흥
SCOPUS Author ID
남원우scopus; 김진흥scopus
Issue Date
2008
Journal Title
Inorganica Chimica Acta
ISSN
0020-1693JCR Link
Citation
vol. 361, no. 8, pp. 2557 - 2561
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
The reactivity of an isolated, well-characterized nonheme iron(IV)-oxo complex, [(TMC)FeIV{double bond, long}O]2+ (TMC = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane), has been examined in the oxidation of hydroquinones. This complex has been shown to oxidize a series of hydroquinones, resulting in the production of the corresponding quinone products. Kinetic studies performed with substituted hydroquinones revealed a good correlation between reaction rates of the iron(IV)-oxo complex and the electron-donating ability of the substituents and the bond dissociation energy (BDE) of substrate O-H bonds. These results with a kinetic isotope effect (KIE) of 2.7 led us to propose a hydrogen-atom abstraction mechanism for the oxidation of hydroquinones by the nonheme iron(IV)-oxo species. © 2008 Elsevier B.V. All rights reserved.
DOI
10.1016/j.ica.2007.12.027
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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