Activationless electron self-exchange of high-valent oxo and imido complexes of chromium corroles.
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 (ΔHobs(⧧)) of electron self-exchange of chromium(V)-oxo and -imido corrole with the corresponding chromium(IV) complexes are zero in toluene, whereas the ΔHobs(⧧) 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.
Brown Laboratory and Department of Chemistry, Purdue University , 560 Oval Drive, West Lafayette, Indiana 47907, United States.
Shuo
S
Liu
Department of Chemistry and Nano Science, Ewha Womans University , Seoul 120-750, Korea.
Jieun
J
Jung
Department of Chemistry and Nano Science, Ewha Womans University , Seoul 120-750, Korea.|Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA and SENTAN, Japan Science and Technology Agency (JST) , Suita, Osaka 565-0871, Japan.
Kei
K
Ohkubo
Brown Laboratory and Department of Chemistry, Purdue University , 560 Oval Drive, West Lafayette, Indiana 47907, United States.
Scott D
SD
Hicks
Brown Laboratory and Department of Chemistry, Purdue University , 560 Oval Drive, West Lafayette, Indiana 47907, United States.
Curt J
CJ
Bougher
Brown Laboratory and Department of Chemistry, Purdue University , 560 Oval Drive, West Lafayette, Indiana 47907, United States.
Mahdi M
MM
Abu-Omar
Department of Chemistry and Nano Science, Ewha Womans University , Seoul 120-750, Korea.|Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA and SENTAN, Japan Science and Technology Agency (JST) , Suita, Osaka 565-0871, Japan.|Faculty of Science and Engineering, Meijo University, ALCA and SENTAN, Japan Science and Technology Agency (JST ), Nagoya, Aichi 468-0073, Japan.
Shunichi
S
Fukuzumi