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Stanisavljev, Dragomir R; Milenković, Maja C; Popović-Bijelić, Ana D; Mojović, Miloš D
The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, 04/2013, Letnik: 117, Številka: 16Journal Article
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.
