کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
219536 | 463278 | 2011 | 6 صفحه PDF | دانلود رایگان |
The electrochemical behavior of ruthenocene, RuCp2, was investigated on both a platinum microdisk electrode and a platinum macroelectrode in six different room temperature ionic liquids of varying viscosity, at a range of temperatures and concentrations. It was observed that the redox behavior of RuCp2 is not well understood in both aqueous and non-aqueous media. A process involving the one electron oxidation of RuCp2 to the [RuCp2]+ monocation, followed by dimerization to form the [Cp2Ru–RuCp2]2+ species has been speculated although, chronoamperometry suggests that the oxidation of RuCp2 proceeds via a two-electron process. For this reason, it is believed that an ECE mechanism proceeds in which the electrogenerated [RuCp2]+ monocation undergoes a nucleophilic reaction with the anions of the ionic liquid media, in a chemical step which facilitates the transfer of a second electron.
► We investigate the oxidation of ruthenocene in six room temperature ionic liquids.
► Chronoamperometry shows that this is a two-electron process in all liquids.
► The reaction proceeds as an ECE mechanism and is anion independent.
Journal: Journal of Electroanalytical Chemistry - Volume 657, Issues 1–2, 1 July 2011, Pages 144–149