Effect of CTAB Micelle on the Oxidation of L-Leucine by N-Bromophthalimide: a Kinetic Study
-
Yokraj Katre
Abstract
The effect of cationic surfactant cetyltrimethylammonium bromide (CTAB) on the oxidation of L-leucine by N-bromophthalimide (NBP) has been studied at 308 K. The reaction exhibits first order dependence on NBP and L-leucine and negative and fractional order dependence on HClO4. The effects of KCl, KBr, phthalimide and mercuric acetate have also been studied and summarized. The rate of reaction increased with an increase in dielectric constant of the medium. CTAB strongly catalyzes the reaction and typical kobs and CTAB profile was observed, i.e., with a progressive increase in CTAB, the reaction rate increased and after achieving a peak kobs decreased at higher concentrations of CTAB. The results are treated quantitatively in terms of “Piszkiewicz” and “Raghvan and Srinivasan's” models. The various activation parameters in presence and absence of CTAB have been also evaluated. A suitable mechanism consistent with the experimental findings has been proposed. The rate constant in micellar phase kM, cooperativity index (n), binding constant (K1 and K2) have been computed.
© by Oldenbourg Wissenschaftsverlag, Chhattisgarh 490006, Germany
Artikel in diesem Heft
- Relation between Quantum Thermodynamics and Classical Thermodynamics
- DFT Study on the Complexation of Cs+ with Benzo-18-crown-6
- Uniform and Pitting Corrosion Processes of Al, Al-6061, Al-Zn and Al-Cu Alloys Exposed to SCN- Solutions and the Effect of Some Inorganic Anions
- Sol–gel Synthesis and Characterization of Nanostructured ZnO Obtained in the Ionic Liquid [BMP]TFSA and in Isopropanol
- Oscillatory Behavior in the CO-oxidation over Bulk Ruthenium Dioxide — the Effect of the CO/O2 Ratio
- Transport Studies of Some 1:1 Copper(I) Perchlorate Complexes in Acetonitrile-Dimethylsulphoxide Mixtures
- Kinetics and Mechanism of Oxidation of Chloramphenicol — an Antibiotic Drug by Diperiodatocuprate(III) in Aqueous Alkaline Medium
- Kinetics and Mechanism of Oxidation of Gabapentin (Neurontin) Anion by Alkaline Diperiodatonickelate(IV) — A Free Radical Intervention
- Effect of CTAB Micelle on the Oxidation of L-Leucine by N-Bromophthalimide: a Kinetic Study
- Determination of Steric Effect on the Esterification of Different Alcohols with Propanoic Acid over Cation-exchange Resin Catalyst Dowex 50Wx4
Artikel in diesem Heft
- Relation between Quantum Thermodynamics and Classical Thermodynamics
- DFT Study on the Complexation of Cs+ with Benzo-18-crown-6
- Uniform and Pitting Corrosion Processes of Al, Al-6061, Al-Zn and Al-Cu Alloys Exposed to SCN- Solutions and the Effect of Some Inorganic Anions
- Sol–gel Synthesis and Characterization of Nanostructured ZnO Obtained in the Ionic Liquid [BMP]TFSA and in Isopropanol
- Oscillatory Behavior in the CO-oxidation over Bulk Ruthenium Dioxide — the Effect of the CO/O2 Ratio
- Transport Studies of Some 1:1 Copper(I) Perchlorate Complexes in Acetonitrile-Dimethylsulphoxide Mixtures
- Kinetics and Mechanism of Oxidation of Chloramphenicol — an Antibiotic Drug by Diperiodatocuprate(III) in Aqueous Alkaline Medium
- Kinetics and Mechanism of Oxidation of Gabapentin (Neurontin) Anion by Alkaline Diperiodatonickelate(IV) — A Free Radical Intervention
- Effect of CTAB Micelle on the Oxidation of L-Leucine by N-Bromophthalimide: a Kinetic Study
- Determination of Steric Effect on the Esterification of Different Alcohols with Propanoic Acid over Cation-exchange Resin Catalyst Dowex 50Wx4
