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Effect of Boiling on the Mechanism of Formation and Decay of Hydroxyalkyl Radicals

  • EFFECT OF EXTERNAL FACTORS ON PHYSICOCHEMICAL TRANSFORMATIONS
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Abstract—

The effect of the boiling state on the reaction mechanism of 11 free radicals formed upon irradiation of 1-propanol with 8 MeV accelerated electrons is considered. Compared to radiolysis at room temperature, radiolysis at boiling results in an increase in 1-propanol degradation yield from (10.1 ± 0.9) to (13.3 ± 0.9) molecule/100 eV. Boiling shows the largest effect on the radilytic cleavage of the C(1)–H and C(2)–H bonds and almost doubles the yield of hydroxyalkyl radicals. In particular, the boiling effect is due to the suppression of the cage effect, a decrease in the relative role of intermolecular relaxation, and an increase in the processes of radicals exchange and combination.

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Funding

This work was carried out within the framework of the state theme AAAA-A16-116121410087-6 with the help of equipment provided by the Center for the collective use of physical research methods of the Frumkin Institute of Physical chemistry and Electrochemistry Russian Academy of Sciences.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences, 119071, Moscow, Russia

    A. V. Ponomarev & S. I. Vlasov

Authors
  1. A. V. Ponomarev
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  2. S. I. Vlasov
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Correspondence to A. V. Ponomarev.

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Translated by M. Aladina

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Ponomarev, A.V., Vlasov, S.I. Effect of Boiling on the Mechanism of Formation and Decay of Hydroxyalkyl Radicals. Russ. J. Phys. Chem. B 14, 254–260 (2020). https://doi.org/10.1134/S1990793120020128

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  • DOI: https://doi.org/10.1134/S1990793120020128

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