Tatsumi Hirosuke, Katano Hajime
Department of Bioscience, Fukui Prefectural University, Matsuoka, Fukui 910-1195, Japan.
Anal Sci. 2004 Nov;20(11):1613-5. doi: 10.2116/analsci.20.1613.
The electron-transfer reaction between bis(cyclopentadienyl)iron(II) ([Fe(II)(C5H5)2]) in nitrobenzene and a hexacyanoferrate redox couple (Fe(II/III)(CN)6) in water at the nitrobenzene / water interface was studied using normal pulse voltammetry. The voltammetric results indicate that the electron-transfer reaction takes place by way of a so-called ion-transfer (IT) mechanism, of which the forward and backward rate constants of the homogeneous electron-transfer reaction between Fe(II/III)(C5H5)2 and Fe(II/III)(CN)6 in the water phase have been determined. The electron-transfer reaction between [Fe(II)(C5H5)2] in 1,2-dichloroethane and Fe(II/III)(CN)6 in water at the 1,2-dichloroethane / water interface was shown to also take place by the IT-mechanism.
采用常规脉冲伏安法研究了硝基苯中的双（环戊二烯基）铁（II）（[Fe（II）（C5H5）2]）与水相中六氰合铁酸盐氧化还原电对（[Fe（II/III）（CN）6]（4 - /3 - ））在硝基苯/水界面处的电子转移反应。伏安法结果表明，电子转移反应通过一种所谓的离子转移（IT）机制进行，其中已测定了水相中[Fe（II/III）（C5H5）2]（0/ + ）与[Fe（II/III）（CN）6]（4 - /3 - ）之间均相电子转移反应的正向和逆向速率常数。结果表明，1,2 - 二氯乙烷中的[Fe（II）（C5H5）2]与水相中[Fe（II/III）（CN）6]（4 - /3 - ）在1,2 - 二氯乙烷/水界面处的电子转移反应也通过IT机制进行。
