Abstract
1. The absolute value of the rate constant of the reaction of disproportionation of F1H* radicals and the value of the coefficient of extinction of these radicals was obtained (Fl represents riboflavin). 2. The introduction of metal salts into aqueous solutions of riboflavin leads to a decrease in the rate constant of the reaction of recombination and disproportionation of FlH* as a result of a decrease in the dielectric permeability of the solution. 3. The yield of the flavosemiquinone radical is increased by the introduction of Mohr's salt into aqueous solutions of riboflavin. A mechanism for this process was proposed. 4. The spectral-kinetic characteristics of complexes between flavosemiquinone radical anions and Cd2+ and Zn2+ ions were obtained. The formation of the complex stabilizes the initial radical.
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Schedule a callMore From: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
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