A potential source of free radicals in iodine-based chemical oscillators

J Phys Chem A. 2011 Mar 24;115(11):2247-9. doi: 10.1021/jp200837u. Epub 2011 Mar 1.

Abstract

The iodide-peroxide system in an acidic medium was investigated as a potential source of free radicals in iodine-based chemical oscillators. The radicals were detected by EPR spin-trapping using spin-trap 5-(tert-butoxycarbonyl)-5-methyl-1-pyrroline N-oxide (BMPO), which forms stable spin-adducts with oxygen-centered radicals. The iodide-peroxide system is introduced as an easily available laboratory source of free radicals.