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Activationless Electron Self-Exchange of High-Valent Oxo and Imido Complexes of Chromium Corroles

Title
Activationless Electron Self-Exchange of High-Valent Oxo and Imido Complexes of Chromium Corroles
Authors
Liu, ShuoJung, JieunOhkubo, KeiHicks, Scott D.Bougher, Curt J.Abu-Omar, Mandi M.Fukuzumi, Shunichi
Ewha Authors
Shunichi Fukuzumi정지은Kei Okubo
SCOPUS Author ID
Shunichi Fukuzumiscopus; 정지은scopus; Kei Okuboscopus
Issue Date
2015
Journal Title
INORGANIC CHEMISTRY
ISSN
0020-1669JCR Link1520-510XJCR Link
Citation
vol. 54, no. 18, pp. 9223 - 9228
Publisher
AMER CHEMICAL SOC
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Rate constants of electron self-exchange of high-valent oxo and imido complexes of chromium(V/IV) corrole have been determined in acetonitrile and toluene at various temperatures by electron paramagnetic resonance (EPR) line width variation of the EPR spectra. The observed activation enthalpies (Delta H-obs double dagger) of electron self-exchange of chromium(V)-oxo and -imido corrole with the corresponding chromium(IV) complexes are zero in toluene, whereas the Delta H-obs double dagger values are slightly positive in acetonitrile. Such activationless electron self-exchange transfer resulted in extremely fast electron-transfer reactions of chromium(V)-oxo and -imido corrole in sharp contrast with slow electron-transfer reactions of other high-valent metal-oxo and -imido complexes.
DOI
10.1021/acs.inorgchem.5b01777
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자연과학대학 > 화학·나노과학전공 > Journal papers
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