@article{oai:repo.qst.go.jp:00043640,
 author = {Nakanishi, Ikuo and Kawashima, Tomonori and Ohkubo, Kei and Kanazawa, Hideko and Inami, Keiko and Mochizuki, Masataka and Fukuhara, Kiyoshi and Okuda, Haruhiro and Ozawa, Toshihiko and Itoh, Shinobu and Fukuzumi, Shunichi and Ikota, Nobuo and 中西 郁夫 and 川島 知憲 and 小澤 俊彦 and 伊古田 暢夫},
 issue = {4},
 journal = {Organic & Biomolecular Chemistry},
 month = {Feb},
 note = {The scavenging reaction of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical or galvinoxyl radical by a Vitamin E model, 2,2,5,7,8-pentamethylchroman-6-ol (1H), was significantly acceleratd by the presence of Mg(ClO4)2, in de-aerated methanol (MeOH).  Such an acceleration indicates that the radical-scavenging reaction of 1H in MeOH proceeds via an electron transfer from 1H to the radical, followed by a proton toransfer, rather than the one-step hydrogen atom transfer which has been observed in acetonitrile (MeCN).  A significant negative shift of the one-electron oxidation potential of 1H in MeOH (0.63 V vs. SCE), due to strong solvation as compared to that in MeCN (0.97 V vs. SCE), may result in change of the radical-scavenging mechanisms between protic and aprotic media.},
 pages = {626--629},
 title = {Electron-Transfer Mechanism in Radical-Scavenging Reactions by a Vitamin E Model in a Protic Medium},
 volume = {3},
 year = {2005}
}