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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| Authors: | R. R. Rakhimov A. I. Prokof'ev Ya. S. Lebedev |
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| Affiliation: | (1) V. I. Nikitin Institute of Chemistry, Academy of Sciences of the Tadzhik SSR, Dushanbe;(2) A. N. Nesmeyanov Institute of Heteroorganic Compounds, Academy of Sciences of the USSR, Moscow;(3) N. N. Semenov Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow |
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| 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  ex and the correlation time for the rotational mobility of the radicalc;ex= c. A temperature dependence was found for coefficient .Translated from Izvestiya Akademii Nauk SSSR. Seriya Khimicheskaya, No. 7, pp. 1663–1666, July, 1990. |
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