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Kinetics of the Oxidation of Uracil and Six of Its Derivatives by Ozone in Aqueous Solutions

  • CHEMICAL KINETICS AND CATALYSIS
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Abstract

The kinetics of the oxidation of uracil and six of its derivatives (thymine, 6-methyluracil, 5-bromo-6-methyluracil, 5-nitro-6-methyluracil, 1,3-dimethylthymine, and 5-hydroxy-1,3,6-trimethyluracil) by ozone in aqueous solutions is studied via spectrophotometry. It is shown that the reactions proceed according to a second-order kinetic law. The temperature dependence of the second-order rate constants is investigated, and the activation parameters of the reaction are determined in the range of 285–309 K.

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Notes

  1. It was established by special experiments that the products of the ozone oxidation of the studied uracils do not absorb in the region of the specified wavelengths.

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Authors and Affiliations

  1. Bashkir State University, 450076, Ufa, Russia

    A. A. Maksyutova, Yu. S. Zimin & A. G. Mustafin

  2. Ufa Institute of Chemistry, Ufa Federal Research Center, Russian Academy of Sciences, 450054, Ufa, Russia

    A. R. Gimadieva & A. G. Mustafin

Authors
  1. A. A. Maksyutova
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  2. Yu. S. Zimin
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  3. A. R. Gimadieva
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  4. A. G. Mustafin
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Correspondence to Yu. S. Zimin.

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Translated by A. Bannov

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Maksyutova, A.A., Zimin, Y.S., Gimadieva, A.R. et al. Kinetics of the Oxidation of Uracil and Six of Its Derivatives by Ozone in Aqueous Solutions. Russ. J. Phys. Chem. 93, 1672–1676 (2019). https://doi.org/10.1134/S0036024419090127

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  • DOI: https://doi.org/10.1134/S0036024419090127

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