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Vol. 34 No. 6 (2022): Vol 34 Issue 6

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Kinetic and Mechanism of Mn(II) Catalytic Oxidation of L-Proline by Cerium(IV) in Acidic Medium by Spectrophotometry Method

https://doi.org/10.14233/ajchem.2022.23540
Sanjay Ghosh
Department of Chemistry, Government N.P.G. College of Science, Raipur-492010, India
Vinod Jena
Department of Chemistry, Government N.P.G. College of Science, Raipur-492010, India
Tarun Patle
School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur-492010, India
Gajanand Sahu
Department of Chemistry, Government N.P.G. College of Science, Raipur-492010, India

Corresponding Author(s) : Gajanand Sahu

gajanandsahu47@gmail.com

Asian Journal of Chemistry, Vol. 34 No. 6 (2022): Vol 34 Issue 6

Abstract

The rate of reaction of L-proline with Ce(IV) acidic medium has been kinetically studied in presence of Mn(II) as catalyst using a spectrophotometric method. The reactions have been performed at temperatures range from 298 K to 318 K in interval of 10 min. In the case of Ce(IV), this reaction would be a first order reaction. The results exhibits first order each in Ce(IV) and metal ion Mn(II) and positive fractional order with respect to [L-proline]. This would have a first order reaction between the Ce(IV) and L-proline in the presence and absence SDS, CTAB and KCl. The rate constant decreases with increasing the concentration of [HSO4−] and [H+] ion. The thermodynamical parameter values such as ΔH#, ΔG# and ΔS# increased with increasing temperature so that the rate equation derived for this mechanism could explain all observed results.

Keywords

Kinetics Oxidation L-Proline Cerium(IV) Sulphuric acid Mn(II) Mechanism
Ghosh, S., Jena, V., Patle, T., & Sahu, G. (2022). Kinetic and Mechanism of Mn(II) Catalytic Oxidation of L-Proline by Cerium(IV) in Acidic Medium by Spectrophotometry Method. Asian Journal of Chemistry, 34(6), 1361–1365. https://doi.org/10.14233/ajchem.2022.23540
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