The oxidation of 2-(2-methoxyethoxy)-ethanol and 2-(2-ethoxyethoxy)-ethanol by dihydroxydiperiodato nickelate(IV): A kinetic and mechanistic study

(1) College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
(2) College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
(*) Corresponding Author

Received: 22 Nov 2013, Accepted: 04 Jan 2014, Published: 30 Jun 2014

Abstract

The kinetics of oxidation of 2-(2-methoxyethoxy)-ethanol and 2-(2-ethoxyethoxy)-ethanol by dihydroxydiperiodato nickelate(IV) (DPN) had been studied spectrophotometrically in alkaline medium in the temperature range of 293.2 to 313.2 K. The reaction rate showed first order dependence on DPN, 2-(2-methoxyethoxy)-ethanol and 2-(2-ethoxyethoxy)-ethanol. It was found that the pseudo-first-order rate constant k_obs increased with an increase in concentration of OH^- and a decrease in concentration of IO₄^-. There was a positive salt effect and no free radicals were detected. A plausible mechanism is proposed and the rate equations derived from the mechanism can explain all the experimental observations.

Keywords

Kinetics; Oxidation; Mechanism; 2-(2-Ethoxyethoxy)-ethanol; 2-(2-Methoxyethoxy)-ethanol; Dihydroxydiperiodatonickelate(IV)

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DOI: 10.5155/eurjchem.5.2.237-240.981

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How to cite

Shan, J.; Zhang, Z. Eur. J. Chem. 2014, 5(2), 237-240. doi:10.5155/eurjchem.5.2.237-240.981

Shan, J.; Zhang, Z. The oxidation of 2-(2-methoxyethoxy)-ethanol and 2-(2-ethoxyethoxy)-ethanol by dihydroxydiperiodato nickelate(IV): A kinetic and mechanistic study. Eur. J. Chem. 2014, 5(2), 237-240. doi:10.5155/eurjchem.5.2.237-240.981

Shan, J., & Zhang, Z. (2014). The oxidation of 2-(2-methoxyethoxy)-ethanol and 2-(2-ethoxyethoxy)-ethanol by dihydroxydiperiodato nickelate(IV): A kinetic and mechanistic study. European Journal of Chemistry, 5(2), 237-240. doi:10.5155/eurjchem.5.2.237-240.981

Shan, Jinhuan, & Ziwei Zhang. "The oxidation of 2-(2-methoxyethoxy)-ethanol and 2-(2-ethoxyethoxy)-ethanol by dihydroxydiperiodato nickelate(IV): A kinetic and mechanistic study." European Journal of Chemistry [Online], 5.2 (2014): 237-240. Web. 21 Oct. 2019

Shan, Jinhuan, AND Zhang, Ziwei. "The oxidation of 2-(2-methoxyethoxy)-ethanol and 2-(2-ethoxyethoxy)-ethanol by dihydroxydiperiodato nickelate(IV): A kinetic and mechanistic study" European Journal of Chemistry [Online], Volume 5 Number 2 (30 June 2014)

DOI Link: https://doi.org/10.5155/eurjchem.5.2.237-240.981

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