Radicals in the Bray-Liebhafsky oscillatory reaction

Autor: Maja C. Milenković, Dragomir R. Stanisavljev, Ana Popović-Bijelić, Miloš Mojović
Rok vydání: 2013
Předmět:
Zdroj: The journal of physical chemistry. A. 117(16)
ISSN: 1520-5215
Popis: This study investigates the formation of free radicals in the Bray-Liebhafsky (BL) oscillatory reaction. The results indicate that radicals are produced during both monotonous and oscillatory dynamics observed as the change of the electron paramagnetic signal (EPR) of the spin-probe TEMPONE. EPR spin-trapping with DEPMPO suggested that the most abundant radical produced in the BL reaction is an iodine-centered radical. The EPR spectrum of the DEPMPO/iodine-centered radical adducts has not been previously reported. This study may aid in establishing a more realistic reaction mechanism of the BL reaction and related chemical oscillators.
Databáze: OpenAIRE