Electron-transfer reactions and the self-exchange rate of the perruthenate(<scp>VII</scp>)–ruthenate(<scp>VI</scp>) couple
作者:Tai-Chu Lau、Sophia L. L. Kong
DOI:10.1039/dt9950002221
日期:——
The kinetics of the reduction of perruthenate(VII) by [Fe(CN)6]4– and [W(CN)8]4– and the oxidation of ruthenate(VI) by [Mo(CN)8]3– and [Ru(CN)6]3– have been studied in aqueous alkaline solutions using stopped-flow techniques. The cross-reaction data have been treated according to the Marcus relations and yield a self-exchange rate constant of 10 ± 5 dm3 mol–1 s–1(25.0 °C, I= 1.0 mol dm–3) for the
丙基过钌酸铵的还原(动力学VII通过)的[Fe(CN)6 ] 4-和[W(CN)8 ] 4-和钌(氧化VI)由[沫(CN)8 ] 3-和[ Ru(CN)6 ] 3–已在碱性水溶液中使用停流技术进行了研究。根据马库斯关系对交叉反应数据进行了处理,并得到了高碘酸盐(10,5 dm 3 mol –1 s –1(25.0°C,I = 1.0 mol dm –3)的自交换速率常数。VII)–钌(六)夫妇。根据碱性溶液中过钌酸盐(VII)和钌酸盐(VI)之间可能存在的结构差异,讨论了这种相当慢的自交换速率。