Free Radical Induced Oxidation of L-Cystine by Alkaline Permanganate - A Kinetic Study
-
Md. Saleem R. Kembhavi
Abstract
The kinetics of oxidation of L-cystine by alkaline permanganate follows the rate law,
where Κ is the formation constant for the complex between L-cystine and permanganate and k is the decomposition rate constant. The data suggest that the oxidation of L-cystine proceeds via the formation of a complex between L-cystine and permanganate which decomposes slowly, followed by a fast reaction between the free radical of L-cystine and another molecule of permanganate to give the products. The reaction constants involved in the mechanism are derived. There is good agreement between the observed and calculated rate constants under varying experimental conditions. The activation parameters are computed with respect to the slow step of the mechanism.
© 2014 by Walter de Gruyter Berlin/Boston
Articles in the same Issue
- Synthesis, Acid Hydrolysis and Formation of the Molybdatopentaamminechromium(III) Ion in Aqueous Solution
- Kinetic and Mechanistic Studies on the Interaction of Adenosine with Diaquaethylenediamineplatinum(II) Ion
- On the Mechanism of Oxidation of Formate by Ni(III) (meso-5,7,7,12,14,14-hexamethy 1-1,4,8,11 - tetraazacyclotetradecane) in Aqueous Solutions
- Substitution Reactions on Pd(II) L-Histidine-diaqua Complexes: Comparative View from Chloride to Nucleobases and Dinucleotides
- Thermo-kinetic and Spectral Studies of Lanthanide(III) Complexes with 2-Hydroxy-l -benzylidene-2-furoyl Hydrazine
- Free Radical Induced Oxidation of L-Cystine by Alkaline Permanganate - A Kinetic Study
- Reaction between [Ru(H2O)6]2+ and DMF: A Complete Volume Profile of a Monocomplex Formation Reaction on a d6 Low Spin Aquaion
- Notes for Contributors Inorganic Reaction Mechanisms
- Journal Order Form
Articles in the same Issue
- Synthesis, Acid Hydrolysis and Formation of the Molybdatopentaamminechromium(III) Ion in Aqueous Solution
- Kinetic and Mechanistic Studies on the Interaction of Adenosine with Diaquaethylenediamineplatinum(II) Ion
- On the Mechanism of Oxidation of Formate by Ni(III) (meso-5,7,7,12,14,14-hexamethy 1-1,4,8,11 - tetraazacyclotetradecane) in Aqueous Solutions
- Substitution Reactions on Pd(II) L-Histidine-diaqua Complexes: Comparative View from Chloride to Nucleobases and Dinucleotides
- Thermo-kinetic and Spectral Studies of Lanthanide(III) Complexes with 2-Hydroxy-l -benzylidene-2-furoyl Hydrazine
- Free Radical Induced Oxidation of L-Cystine by Alkaline Permanganate - A Kinetic Study
- Reaction between [Ru(H2O)6]2+ and DMF: A Complete Volume Profile of a Monocomplex Formation Reaction on a d6 Low Spin Aquaion
- Notes for Contributors Inorganic Reaction Mechanisms
- Journal Order Form
