Gas-phase thermal conversion in a series of cyclocarbosiloxanes

  • N. S. Nametkin
  • T. Kh. Islamov
  • L. E. Gusel'nikov
  • A. A. Sobtsov
  • V. M. Vdovin
Physical Chemistry

Conclusions

  1. 1.

    The thermal conversions of six- and eight-membered cyclocarbosiloxanes, as well as certain structurally similar cyclosiloxanes and cyclocarbosilanes, were studied in the gas phase. Six-membered cyclocarbosiloxanes are more stable under the conditions of pyrolysis than the eight-membered forms; the basic direction of the decomposition of eight-membered cyclocarbosiloxanes is the formation of six-membered compounds.

     
  2. 2.

    The possibility of the formation of cyclocarbosiloxane structures in the pyrolysis of certain cyclocarbosilanes in the presence of cyclosiloxanes or water vapor was demonstrated.

     
  3. 3.

    The thermal rearrangements of cyclocarbosiloxanes are explained on the basis of a mechanism including a cyclane transition state and the formation of labile intermediate compounds, capable of undergoing further conversions.

     

Keywords

Water Vapor Pyrolysis Transition State Intermediate Compound Cyclane Transition 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature cited

  1. 1.
    G. Fritz, G. Grobe, and D. Kummer, Advances Inorganic Chemistry and Radio chemistry,7, 400 (1965).Google Scholar
  2. 2.
    N. S. Nametkin, L. E. Gusel'nikov, V. M. Vdovin, P. L. Grinberg, V. I. Zav'yalov, and V. D. Oppenheim, Dokl. AN SSSR,171, 630 (1966).Google Scholar
  3. 3.
    N. S. Nametkin, L. E. Gusel'nikov, T. Kh. Islamov, M. V. Shishkina, and V. M. Vdovin, Dokl. AN SSSR,175, 136 (1967).Google Scholar
  4. 4.
    N. S. Nametkin, T. Kh. Islamov, L. E. Gusel'nikov, and V. M. Vdovin, Izv. AN SSSR, Ser. Khim., 1329 (1968).Google Scholar
  5. 5.
    É. I. Fedin, L. A. Fedorov, N. S. Nametkin, T. Kh. Islamov, and L. E. Gusel'nikov, Dokl. AN SSSR,186, 843 (1969).Google Scholar
  6. 6.
    N. S. Nametkin, V. M. Vdovin, V. I. Zav'yalov, and P. L. Grinberg, Izv. AN SSSR, Ser. Khim., 929 (1965).Google Scholar
  7. 7.
    N. S. Nametkin, A. V. Topchiev, and V. I. Zetkin, Dokl. AN SSSR,93, 1045 (1953).Google Scholar
  8. 8.
    N. S. Nametkin, T. Kh. Islamov, L. E. Gusel'nikov, A. A. Sobtsov, and V. M. Vdovin, Izv. AN SSSR, Ser. Khim., 84 (1971).Google Scholar
  9. 9.
    L. E. Gusel'nikov and M. C. Flowers, Chem. Comm., 864 (1967).Google Scholar
  10. 10.
    N. Ya. Chernyak, R. A. Khmel'nitskii, T. V. D'yakova, V. M. Vdovin, and T. N. Arkhipova, Zh. Obshch. Khim.,36, 96 (1966).Google Scholar

Copyright information

© Consultants Bureau 1971

Authors and Affiliations

  • N. S. Nametkin
    • 1
  • T. Kh. Islamov
    • 1
  • L. E. Gusel'nikov
    • 1
  • A. A. Sobtsov
    • 1
  • V. M. Vdovin
    • 1
  1. 1.A. V. Topchiev Institute of Petrochemical SynthesisAcademy of Sciences of the USSRUSSR

Personalised recommendations