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JOURNALS // Mendeleev Communications // Archive

Mendeleev Commun., 1992 Volume 2, Issue 1, Pages 38–40 (Mi mendc5389)

This article is cited in 14 papers

Matrix Isolation and Photochemical Interconversion of Siiacyciopentadienes

V. N. Khabasheskua, V. Balajia, S. E. Boganovb, S. A. Bashkirovac, P. M. Matveichevc, E. A. Chernyshevc, O. M. Nefedovb, J. Michla

a Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, USA
b N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
c State Scientific Research Institute of Chemistry and Technology of Organoelement Compounds, Moscow, Russian Federation

Abstract: 1-Silacyclopenta-2,4-diene 1 has been generated by vacuum pyrolysis of 5-silaspiro[4.4]nona-2,7-diene 5 and by photolysis of matrix-isolated 1,1-diazido-1-silacyclopent-3-ene 6, and characterized by matrix-isolation IR and UV spectroscopy; reversible interconversion of 1 with 1-silacyclopenta-1,3-diene 2, 1-silacyclopenta-1,4-diene 3 and 1-silacyclopent-3-ene-1,1-diyl 4 has been observed upon irradiation at various wavelengths; the red-shifted UV absorption of 2 and 3, together with their low Si=C stretching frequencies, provide evidence for Si=C—C=C π conjugation.

Language: English

DOI: 10.1070/MC1992v002n01ABEH000118



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