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Formation of radicals in adsorption of certain heteroaromatic compounds on H-mordenite

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

Conclusions

  1. 1.

    It has been shown that the adsorption of thiophene and its methyl derivatives on H-mordenite at 20° is accompanied by the formation of radicals that give individual ESR spectra with a hyperfine structure; replacement of the sulfur atom by oxygen does not have any substantial effect on the distribution of the unpaired electron in the radical species.

  2. 2.

    A comparison of the parameters of hyperfine structure of the ESR spectra of adsorbed thiophene radicals with the results obtained in quantum-chemical calculations has shown that when thiophene or its derivatives are adsorbed on H-mordenite, anion-radicals are formed.

  3. 3.

    The formation of thiophene anion-radicals is confirmed by experiments on the joint adsorption of thiophene with SO2 acceptor molecules on H-mordenite.

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Authors and Affiliations

  1. N. D. Zelinskii Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow

    A. V. Kucherov, A. A. Slinkin & V. P. Litvinov

Authors
  1. A. V. Kucherov
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  2. A. A. Slinkin
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  3. V. P. Litvinov
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1241–1246, June, 1984.

The authors wish to thank N. D. Chuvylkin for furnishing some of the calculated results (see Table 1) prior to their publication, and for constructive discussions.

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Kucherov, A.V., Slinkin, A.A. & Litvinov, V.P. Formation of radicals in adsorption of certain heteroaromatic compounds on H-mordenite. Russ Chem Bull 33, 1138–1143 (1984). https://doi.org/10.1007/BF00948975

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  • DOI: https://doi.org/10.1007/BF00948975

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