ELECTROCHEMICAL REDUCTION OF DODECYLPYRIDINIUM BROMIDE IN APROTIC SOLVENTS: MECHANISTIC STUDIES

0372477 - ÚFCH JH 2012 RIV CZ eng J - Článek v odborném periodiku
Hromadová, Magdaléna - Pospíšil, Lubomír - Sokolová, Romana - Kolivoška, Viliam
ELECTROCHEMICAL REDUCTION OF DODECYLPYRIDINIUM BROMIDE IN APROTIC SOLVENTS: MECHANISTIC STUDIES.
Collection of Czechoslovak Chemical Communications. Roč. 76, č. 12 (2011), s. 1895-1908. ISSN 0010-0765
Grant CEP: GA AV ČR IAA400400802; GA ČR GA203/08/1157; GA ČR GA203/09/0705; GA MŠMT(CZ) MEB041006
Výzkumný záměr: CEZ:AV0Z40400503
Klíčová slova: spectroelectrochemistry * dodecylpyridinium bromide * mechanistic studies
Kód oboru RIV: CG - Elektrochemie
Impakt faktor: 1.283, rok: 2011

Reduction mechanism of 1-dodecylpyridin-1-ium bromide (DPBr) in dimethylsulfoxide has been studied on mercury electrode. Based on the classical polarographic methods as well as on the use of AC techniques it was shown that DPBr is reduced in a reversible one electron transfer step followed by dimerization of the corresponding radical species. Reduction process is accompanied by the adsorption phenomena even in the non-aqueous solvents. Possible modes of DPBr adsorption have been studied by the ex situ scanning tunnelling microscopy (STM) imaging of these molecules on highly oriented pyrolytic graphite.
Trvalý link: http://hdl.handle.net/11104/0205789