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Rate constants of the reaction of cumyl peroxide radicals with 2-arylindan-1, 3-diones

  • Physical Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    The rate constant K(7) of the interaction of cumyl peroxide radicals with 2-arylindan-1,3-diones (ΦH), the activation energies of these reactions (Eact), and the stoichiometric coefficients of inhibition (f) were determined.

  2. 2.

    The values of k7 and f are determined to a substantial degree by the nature of the substituents and their position in the 2-phenyl ring.

  3. 3.

    For the p-substituted 2-phenylidan-1,3-diones a correlation equation logk7/k7.st=0.28σ + 1.01 ER was established. The value of the rate constants of stripping of a H atom from the CH bonds of φH by peroxide radicals is influenced by the polarity of the substituent (σ) and the resonance factor (ER), considering the contribution of the substituents to the delocalization of the unpaired electron in the radical Ф formed.

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Authors and Affiliations

  1. Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow

    A. B. Gagarina, L. M. Pisarenko, V. V. Moiseev & N. M. Émanuél'

  2. S. V. Lebedev All-Union Scientific Research Institute of Synthetic Rubber, Voronezh

    A. B. Gagarina, L. M. Pisarenko, V. V. Moiseev & N. M. Émanuél'

Authors
  1. A. B. Gagarina
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  2. L. M. Pisarenko
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  3. V. V. Moiseev
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  4. N. M. Émanuél'
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 1041–1047, May, 1975.

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Gagarina, A.B., Pisarenko, L.M., Moiseev, V.V. et al. Rate constants of the reaction of cumyl peroxide radicals with 2-arylindan-1, 3-diones. Russ Chem Bull 24, 953–957 (1975). https://doi.org/10.1007/BF00922940

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  • DOI: https://doi.org/10.1007/BF00922940

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