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Article: Effects of electrode surface pretreatments on the electrochemistry of a macrocyclic dioxoruthenium(VI) complex

TitleEffects of electrode surface pretreatments on the electrochemistry of a macrocyclic dioxoruthenium(VI) complex
Authors
Issue Date1987
Citation
Journal Of Electroanalytical Chemistry, 1987, v. 226 n. 1-2, p. 211-226 How to Cite?
AbstractThe reductive electrochemistry of trans-[RuVI(TMC)(O)2]2+ (TMC = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane) follows different courses in aprotic and aqueous media. In acetonitrile, a one-electron reduction to trans-[RuV(TMC)(O)2]+ occurs. In aqueous acid trans-[RuIV(TMC)O(OH2)]2+ is formed in a single, two-electron, two-proton step. [RuV(TMC)(O)2]+ disproportionates to [RuVI(TMC)(O)2]2+ and [RuIV(TMC)O(OH2)]2+ in the presence of acid. The oxidation of [RuIV(TMC)O(OH2)]2+ in aqueous acid is facile at pyrolytic graphite and oxidatively "activated" glassy carbon electrodes but hindered at unactivated glassy carbon, platinum and gold electrodes. Slow proton transfer is identified as the origin of the slow oxidation and oxygen-containing groups on "activated" electrodes are suggested as the catalysts for this step. © 1987.
Persistent Identifierhttp://hdl.handle.net/10722/167329
ISSN
2007 Impact Factor: 2.58
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChe, CMen_US
dc.contributor.authorWong, KYen_US
dc.contributor.authorAnson, FCen_US
dc.date.accessioned2012-10-08T03:05:43Z-
dc.date.available2012-10-08T03:05:43Z-
dc.date.issued1987en_US
dc.identifier.citationJournal Of Electroanalytical Chemistry, 1987, v. 226 n. 1-2, p. 211-226en_US
dc.identifier.issn0022-0728en_US
dc.identifier.urihttp://hdl.handle.net/10722/167329-
dc.description.abstractThe reductive electrochemistry of trans-[RuVI(TMC)(O)2]2+ (TMC = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane) follows different courses in aprotic and aqueous media. In acetonitrile, a one-electron reduction to trans-[RuV(TMC)(O)2]+ occurs. In aqueous acid trans-[RuIV(TMC)O(OH2)]2+ is formed in a single, two-electron, two-proton step. [RuV(TMC)(O)2]+ disproportionates to [RuVI(TMC)(O)2]2+ and [RuIV(TMC)O(OH2)]2+ in the presence of acid. The oxidation of [RuIV(TMC)O(OH2)]2+ in aqueous acid is facile at pyrolytic graphite and oxidatively "activated" glassy carbon electrodes but hindered at unactivated glassy carbon, platinum and gold electrodes. Slow proton transfer is identified as the origin of the slow oxidation and oxygen-containing groups on "activated" electrodes are suggested as the catalysts for this step. © 1987.en_US
dc.languageengen_US
dc.relation.ispartofJournal of Electroanalytical Chemistryen_US
dc.titleEffects of electrode surface pretreatments on the electrochemistry of a macrocyclic dioxoruthenium(VI) complexen_US
dc.typeArticleen_US
dc.identifier.emailChe, CM:cmche@hku.hken_US
dc.identifier.authorityChe, CM=rp00670en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/0022-0728(87)80045-1-
dc.identifier.scopuseid_2-s2.0-0001219013en_US
dc.identifier.volume226en_US
dc.identifier.issue1-2en_US
dc.identifier.spage211en_US
dc.identifier.epage226en_US
dc.identifier.isiWOS:A1987J227300016-
dc.identifier.scopusauthoridChe, CM=7102442791en_US
dc.identifier.scopusauthoridWong, KY=7404760030en_US
dc.identifier.scopusauthoridAnson, FC=7006393695en_US

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