Reactions of flavosemiquinone radicals in the presence of metal ions

摘要

Rate constant of disproportionation of flavosemiquinone radicals has been determined taking advantage of impulse spectroscopy. Yield of flavosemiquinone radical increases with addition of iron(II)-ammonium sulfate to riboflavin solution. Spectral-kinetic parameters of flavosemiquinone radical complexes with Zn2+ and Cd2+ have been obtained.