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Mechanism for destruction of the radical paris that are formed in the irradiation of glassy solutions of sterically hindered quinones and phenols

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    The rate constant for the destruction of radical pairs decreases with increase in the distance between the traps of the H atom.

  2. 2.

    A mechanism was proposed for the destruction of radical pairs, according to which the main channel for hydrogen transfer during annealing does not coincide with the channel for phototransfer when the RP are formed.

  3. 3.

    Based on a formally kinetic analysis for a stepwise rate, distribution parameters based on the activation energies were found for the deuterated and undeuterated samples. A superficial estimate was made of the change in the activation energy when the distance between the unpaired electrons in the radical pairs is changed by one unit of length.

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Literature Cited

  1. A. I. Aleksandrov, N. N. Bubnov, G. G. Lazarev, Ya. S. Lebedev, A. I. Prokof'ev, and M. V. Serdobov, Izv. Akad. Nauk SSSR, Ser. Khim., 515 (1976).

  2. S. N. Dobryakov, G. G. Lazarev, Ya. S. Lebedev, and M. V. Serdobov, Izv. Akad. Nauk SSSR, Ser. Khim., 2087 (1976).

  3. A. I. Mikhailov, Ya. S. Lebedev, and N. Ya. Buben, Kinet. Katal.,6, 48 (1965).

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  4. B. Kelly, Radiation Damage of Solids [in Russian], Atomizdat (1970), Chap. 4.

  5. O. Ya. Grinberg, A. A. Dubinskii, and Ya. S. Lebedev, Kinet. Katal.,3, 660 (1972).

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Authors
  1. G. G. Lazarev
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  2. Ya. S. Lebedev
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  3. M. V. Serdobov
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Additional information

Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow. Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 10, pp. 2358–2360, October, 1976.

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Lazarev, G.G., Lebedev, Y.S. & Serdobov, M.V. Mechanism for destruction of the radical paris that are formed in the irradiation of glassy solutions of sterically hindered quinones and phenols. Russ Chem Bull 25, 2201–2203 (1976). https://doi.org/10.1007/BF02659551

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  • DOI: https://doi.org/10.1007/BF02659551

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