Details der Publikation - Ru(III) Catalyzed Oxidation of Menthol by Bromate in Presence of Mercuric Acetate in Aqueous Acidic Medium: A Kinetic and Mechanistic Pathway

Ru(III) Catalyzed Oxidation of Menthol by Bromate in Presence of Mercuric Acetate in Aqueous Acidic Medium: A Kinetic and Mechanistic Pathway

Abstract Kinetic investigation of Ru(III) catalyzed oxidation of menthol in an acidified solution of potassium bromate in the presence of Hg(OAc)2 as a scavenger of bromine intermediate has been studied. The reaction exhibits zero order kinetics with respect to $ KBrO_{3} $. While first order kinetics with respect to menthol and Ru(III) respectively. Hydrogen ion does not affect the rate but rate is enhanced by ionic strength. The influence of Hg(OAc)2 on the rate was found to be insignificant. Menthone as the oxidation product of menthol has been confirmed spectrally. The proposed mechanism involves slow and rate-controlling disproportionate of a transient complex formed between reactive species of Ru(III) and menthol. The various activation parameter such as energy of activation (∆E)#, Arrhenius factor (A), and entropy of activation (∆S)# were calculated. The rate law derived on the basis of experimental data corresponds well with the proposed mechanism..

Medienart:	E-Artikel

Erscheinungsjahr:	2022
Erschienen:	2022

Enthalten in:	Zur Gesamtaufnahme - volume:96
Enthalten in:	Russian journal of physical chemistry / A - 96(2022), 11 vom: Nov., Seite 2381-2386

Sprache:	Englisch

Beteiligte Personen:	Jain, Priyanka [VerfasserIn] Rolaniya, Asha [VerfasserIn] Sailani, Riya [VerfasserIn]

Links:	Volltext [lizenzpflichtig]

Anmerkungen:	© Pleiades Publishing, Ltd. 2022. ISSN 0036-0244, Russian Journal of Physical Chemistry A, 2022, Vol. 96, No. 11, pp. 2381–2386. © Pleiades Publishing, Ltd., 2022.

doi:	10.1134/S0036024422110255

funding:
Förderinstitution / Projekttitel:

PPN (Katalog-ID):	OLC213262769X

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520			\|a Abstract Kinetic investigation of Ru(III) catalyzed oxidation of menthol in an acidified solution of potassium bromate in the presence of Hg(OAc)2 as a scavenger of bromine intermediate has been studied. The reaction exhibits zero order kinetics with respect to $ KBrO_{3} $. While first order kinetics with respect to menthol and Ru(III) respectively. Hydrogen ion does not affect the rate but rate is enhanced by ionic strength. The influence of Hg(OAc)2 on the rate was found to be insignificant. Menthone as the oxidation product of menthol has been confirmed spectrally. The proposed mechanism involves slow and rate-controlling disproportionate of a transient complex formed between reactive species of Ru(III) and menthol. The various activation parameter such as energy of activation (∆E)#, Arrhenius factor (A), and entropy of activation (∆S)# were calculated. The rate law derived on the basis of experimental data corresponds well with the proposed mechanism.
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Ru(III) Catalyzed Oxidation of Menthol by Bromate in Presence of Mercuric Acetate in Aqueous Acidic Medium: A Kinetic and Mechanistic Pathway

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