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Correlation between the rotational mobility and the kinetics of the intramolecular exchange of the unpaired electron and bond in a tin-containing free radical with two pyrocatechol ligands

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

Abstract

EPR spectroscopy was used to study the effect of the mobility of the medium on the dynamics of the interligand exchange of the unpaired electron and bond in the free radical formed upon the reaction of stannous bis-3,6-di-tert-butyl-o-semiquinolate with 3,6-di-tert-butyl-2-hydroxyphenoxyl in the presence of triphenylphosphine. A dependence exists between the characteristic exchange time τex and the correlation time for the rotational mobility of the radicalτ c;τ ex=ατ c. A temperature dependence was found for coefficient α.

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Authors and Affiliations

  1. V. I. Nikitin Institute of Chemistry, Academy of Sciences of the Tadzhik SSR, Dushanbe

    R. R. Rakhimov, A. I. Prokof'ev & Ya. S. Lebedev

  2. A. N. Nesmeyanov Institute of Heteroorganic Compounds, Academy of Sciences of the USSR, Moscow

    R. R. Rakhimov, A. I. Prokof'ev & Ya. S. Lebedev

  3. N. N. Semenov Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow

    R. R. Rakhimov, A. I. Prokof'ev & Ya. S. Lebedev

Authors
  1. R. R. Rakhimov
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  2. A. I. Prokof'ev
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  3. Ya. S. Lebedev
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Translated from Izvestiya Akademii Nauk SSSR. Seriya Khimicheskaya, No. 7, pp. 1663–1666, July, 1990.

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Rakhimov, R.R., Prokof'ev, A.I. & Lebedev, Y.S. Correlation between the rotational mobility and the kinetics of the intramolecular exchange of the unpaired electron and bond in a tin-containing free radical with two pyrocatechol ligands. Russ Chem Bull 39, 1511–1514 (1990). https://doi.org/10.1007/BF00957877

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  • DOI: https://doi.org/10.1007/BF00957877

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