Original title: Spectroelectrochemical Study of Electron Transfer in the Extended 1,1 '-Bipyridinium Cation
Authors: Hromadová, Magdaléna ; Kolivoška, Viliam ; Pospíšil, Lubomír ; Valášek, M. ; Tarábek, Ján
Document type: Papers
Conference/Event: Moderní elektrochemické metody /35./, Jetřichovice (CZ), 20150518
Year: 2015
Language: eng
Abstract: Electron transfer (ET) in the extended 1, 1 ' -bipyridinium has been investigated by UV Nis/NIR and EPR in-situ spectroelectrochemical techniques. During the in-situ cyclic voltammetric scan no EPR signal was observed at the potential corresponding to the first electron transfer at room temperature, whereas the EPR signal for the subsequent ET steadily increased and was observed even at the potentials corresponding to the fourth electron transfer. The EPR signal was detected for the first electron transfer step only at elevated temperature. The evidence for the presence of comproportionation processes and for the formation of n-dimer is discussed.
Keywords: electron transfer; extended bipyridinium; UV/Vis/NIR and EPR spectroelectrochemistry
Project no.: GA14-05180S (CEP), HU/2013/05, 7AMB15FR027 (CEP), M200401202
Funding provider: GA ČR, GA AV, GA MŠk, Rada programu interní podpory projektů mezinárodní spolupráce AV ČR
Host item entry: XXXV. Moderní elektrochemické metody. Sborník přednášek mezinárodní odborné konference, ISBN 978-80-905221-3-8

Institution: J. Heyrovsky Institute of Physical Chemistry AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0246924

Permalink: http://www.nusl.cz/ntk/nusl-187999


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Research > Institutes ASCR > J. Heyrovsky Institute of Physical Chemistry
Conference materials > Papers