Abstract:
The mechanism of electrode reactions of the β-hydroxyethyl radical has been found experimentally to depend on pH, and a general kinetic scheme of organic radical electroreduction is suggested which includes two parallel pathways of electron transfer, either to adsorbed radical Rads or to its metastable protonated complex [Rads·BH+]; the competition between these pathways is determined by the capacity of Rads for complex formation, the concentration of the proton donor, and electron transfer rates to Rads and [Rads·BH+].
Document Type:
Article
Language: English
Citation:
A. G. Krivenko, A. S. Kotkin, V. A. Kurmaz, “The β-hydroxyethyl radical as a model system for two-pathway electroreduction in the presence of proton donors”, Mendeleev Commun., 8:2 (1998), 56–58
Linking options:
https://www.mathnet.ru/eng/mendc4653
https://www.mathnet.ru/eng/mendc/v8/i2/p56
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V. A. Kurmaz, D. V. Konev, S. V. Kurmaz, N. S. Emel'yanova, “Electrochemical Study of the Antitumor Antibiotic Doxorubicin in Its Free Form and Encapsulated in a Biocompatible Copolymer of N-Vinylpyrrolidone and (di)Methacrylates”, Russ J Electrochem, 60:4 (2024), 321
A. G. Krivenko, N. S. Komarova, E. V. Stenina, L. N. Sviridova, K. V. Mironovich, Yu. M. Shul'ga, R. A. Manzhos, S. V. Doronin, V. A. Krivchenko, “Electrochemical modification of electrodes based on highly oriented carbon nanowalls”, Russ J Electrochem, 51:10 (2015), 963
V. A. Kurmaz, V. P. Gul'tyai, “The main trends in the development of electrochemistry of organic compounds in Russia (based on the materials of the 18th All-Russian Conference “EKHOS-2014”)”, Russ J Electrochem, 51:11 (2015), 991
V. A. Kurmaz, A. B. Ershler, “Acid-catalysed degradation of the organomercury intermediates of pentafluorophenylmercury bromide reduction near a mercury electrode”, Mendeleev Commun., 16:4 (2006), 234–237
A. G. Krivenko, A. S. Kotkin, V. A. Kurmaz, “Thermodynamic and kinetic characteristics of intermediates of electrode reactions: A comparative investigation of a number of alkylaryl and alkyl halide radicals by the laser photoemission methods”, Russ J Electrochem, 41:2 (2005), 137
A. G. Krivenko, A. S. Kotkin, V. A. Kurmaz, “Thermodynamic and kinetic characteristics of intermediates of electrode reactions: Determination by direct and combined electrochemical methods”, Russ J Electrochem, 41:2 (2005), 122
Alexander G Krivenko, Alexander S Kotkin, Vladimir A Kurmaz, “Mechanism of electroreduction of intermediates with and without a proton donor”, Electrochimica Acta, 47:24 (2002), 3891
A. G. Krivenko, V. A. Kurmaz, A. S. Kotkin, “Prospects for the determination of thermodynamic and kinetic parameters of electrode reaction intermediates by laser photoemission”, Mendeleev Commun., 12:1 (2002), 11–14
V. A. Kurmaz, A. G. Krivenko, A. P. Tomilov, V. V. Turygin, A. V. Khudenko, N. N. Shalashova, A. S. Kotkin, “Studying the dimerization reaction during the abstraction of halogen from organohalides by laser photoemission, controlled-potential electrolysis, and voltammetry”, Russ J Electrochem, 36:3 (2000), 308
A. G. Krivenko, A. S. Kotkin, V. A. Kurmaz, “Effect of proton donors on the mechanism of electroreduction of α-radicals of linear and cyclic ethers”, Mendeleev Commun., 10:2 (2000), 46–49
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