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ECS Transactions
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SYSNO ASEP 0081202 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Search for a One-Electron Reduction of the Cation Radical of an Extended Viologen , p-Phenylene-bis-4,4'-(1-Aryl-2,6-Diphenylpyridinium) Title Hledání jednoelektronová redukce kation radikálu prodlouženého viologenu p-Phenylene-bis-4,4'-(1-Aryl-2,6-Diphenylpyridinium) Author(s) Pospíšil, Lubomír (UFCH-W) RID, ORCID
Hromadová, Magdaléna (UFCH-W) RID, ORCID, SAI
Fiedler, Jan (UFCH-W) RID, ORCID
Gál, Miroslav (UFCH-W)
Valášek, M. (CZ)
Pecka, J. (CZ)
Michl, J. (US)Source Title ECS Transactions, Vol. 2 - Mechanistic Organic Electrochemistry, in Honor of the 80th Birthday of Professor Petr Zuman. - Pennington : The Electrochemical Society, 2007 / Weidner J. ; Natishan P. ; O´Grady W. - ISBN 978-1-56677-534-2 Pages s. 35-44 Number of pages 10 s. Language eng - English Country US - United States Keywords cation radicals ; electrochemistry ; viologens Subject RIV CG - Electrochemistry R&D Projects IAA400400505 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) LC510 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) OC 140 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40400503 - UFCH-W (2005-2011) Annotation Electrochemical one-electron reduction of the extended viologen dication 12+ proceeds reversibly at -0.64 V (vs. Ag|AgCl electrode) to yield the red cation radical 1+. , which readily produces a dark blue dimer hindering the observation of a second one-electron reduction of 1+.. Conventional electrochemical methods suggest that the only second reduction step occurs at -1.4 V. Fast cyclic voltammetry at scan rates up to kV/s and voltammetry at micromolar concentrations eliminate the coupled bimolecular chemical reactions and permit the determination of the reduction potential of the cation radical 1+. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2007
Number of the records: 1