Russian Chemical Bulletin

, Volume 42, Issue 4, pp 663–671

Studies of vacuum pyrolysis of 3-sila- and 3-germa-3,3′-spirobi(6-oxabicyclo[3.1.0]hexanes) and low-temperature matrix stabilization of monomeric silicon dioxide from the gas phase

  • S. E. Boganov
  • V. I. Faustov
  • V. N. Khabashesku
  • Z. A. Kerzina
  • N. D. Kagramanov
  • A. A. Kutin
  • O. M. Nefedov
  • P. Mazerolles
  • G. Manuel
Physical Chemistry

DOI: 10.1007/BF00703999

Cite this article as:
Boganov, S.E., Faustov, V.I., Khabashesku, V.N. et al. Russ Chem Bull (1993) 42: 663. doi:10.1007/BF00703999
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Abstract

Vacuum pyrolysis of 3-sila-3,3′-spirobi(6-oxabicyclo[3.1.0]hexanes) leads to the formation of monomeric silicon dioxide and 1,3-butadienes, whereas under the same conditions 3-germa-3,3′-spirobi(6-oxabicyclo[3.1.0]hexanes) afford germanium monoxide, the corresponding divinyl ethers, and 1,3-butadienes. A multistage mechanism of pyrolytic decomposition of the above spirobicyclohexanes was proposed on the basis of experimental data and calculations. The different behavior of the silicon and germanium compounds having similar structures can be explained by an increase in the bivalent state stability and by a decrease in the energy of the metal-oxygen double bond on the transition from silicon to germanium.

Key words

vacuum pyrolysismatrix IR spectroscopysemiempirical method AM11,1′-dimethyl-3,3′-spirobi(3-germa-6-oxabicyclo[3.1.0]hexane)1,5-dimethyl-3,3′-spirobi(3-germa-6-oxabicyclo[3.1.0]hexane)1,5-dimethyl-3,3′-spirobi(6-oxa-3-silabicyclo[3.1.0]hexane)silicon dioxidegermanium dioxidegermanium monoxideisopropenyl vinyl etherdivinyl ether1,3-butadiene2,3-dimethyl-1,3-butadienegermanonesilanone

Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • S. E. Boganov
    • 1
  • V. I. Faustov
    • 1
  • V. N. Khabashesku
    • 1
  • Z. A. Kerzina
    • 1
  • N. D. Kagramanov
    • 1
  • A. A. Kutin
    • 1
  • O. M. Nefedov
    • 1
  • P. Mazerolles
    • 2
  • G. Manuel
    • 2
  1. 1.N. D. Zelinsky Institute of Organic ChemistryRussian Academy of SciencesMoscowRussian Federation
  2. 2.Laboratory of Organometallic ChemistryPaul-Sabatier UniversityToulouse cedexFrance