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Dioxygen activation and catalytic aerobic oxidation by a mononuclear nonheme iron(II) complex

Title
Dioxygen activation and catalytic aerobic oxidation by a mononuclear nonheme iron(II) complex
Authors
Kim S.O.Sastri C.V.Seo M.S.Kim J.Nam W.
Ewha Authors
남원우김진흥서미숙
SCOPUS Author ID
남원우scopus; 김진흥scopus
Issue Date
2005
Journal Title
Journal of the American Chemical Society
ISSN
0002-7863JCR Link
Citation
vol. 127, no. 12, pp. 4178 - 4179
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We have used dioxygen, not artificial oxidants such as peracids, iodosylarenes, and hydroperoxides, in the generation of a mononuclear nonheme oxoiron(IV) complex, [Fe(IV)(TMC)(O)]2+ (TMC = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane), from its corresponding Fe(II) complex, [Fe(TMC)(CF3SO3)2]. The formation of oxoiron(IV) species by activating dioxygen was markedly dependent on iron(II) complexes and solvents, and this observation was interpreted with the electronic effect of iron(II) complexes on dioxygen activation to form oxoiron(IV) species. A catalytic aerobic oxidation of organic substrates was demonstrated in the presence of the [Fe(TMC)]2+ complex. By carrying out 18O-labeled water experiment, we were able to conclude that the oxidation of organic substrates was mediated by an oxoiron(IV) intermediate, not by a radical type of autoxidation process. Copyright © 2005 American Chemical Society.
DOI
10.1021/ja043083i
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자연과학대학 > 화학·나노과학전공 > Journal papers
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