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Nonheme FeIVO Complexes That Can Oxidize the C-H Bonds of Cyclohexane at Room Temperature

Title
Nonheme FeIVO Complexes That Can Oxidize the C-H Bonds of Cyclohexane at Room Temperature
Authors
Kaizer J.Klinker E.J.Oh N.Y.Rohde J.-U.Song W.J.Stubna A.Kim J.Munck E.Nam W.Que Jr. L.
Ewha Authors
남원우김진흥
SCOPUS Author ID
남원우scopus; 김진흥scopus
Issue Date
2004
Journal Title
Journal of the American Chemical Society
ISSN
0002-7863JCR Link
Citation
vol. 126, no. 2, pp. 472 - 473
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Nonheme oxoiron(IV) complexes of two pentadentate ligands, N4Py (N,N-bis(2-pyridylmethyl)-bis(2-pyridyl)methylamine) and Bn-tpen (N-benzyl-N,N′,N′-tris(2-pyridylmethyl)-1,2-diaminoethane), have been generated and found to have spectroscopic properties similar to the closely related tetradentate TPA (tris(2-pyridylmethyl)amine) complex reported earlier. However, unlike the TPA complex, the pentadentate complexes have a considerable lifetime at room temperature. This greater thermal stability has allowed the hydroxylation of alkanes with C-H bonds as strong as 99.3 kcal/mol to be observed at room temperature. Furthermore, a large deuterium KIE value is found in the oxidation of ethylbenzene. These observations lend strong credence to postulated mechanisms of mononuclear nonheme iron enzymes that invoke the intermediacy of oxoiron(IV) species. Copyright © 2004 American Chemical Society.
DOI
10.1021/ja037288n
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자연과학대학 > 화학·나노과학전공 > Journal papers
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