High-vacuum pyrolysis of 1,1,1-trifluoro-2-bromo-2-chloroethane. IR spectrum of 1,1,1-trifluoro-2-chloroethyl radical in an argon matrix |
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Authors: | E G Baskir V A Korolev O M Nefedov |
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Institution: | (1) N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913 Moscow, Russian Federation |
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Abstract: | The products of high-vacuum pyrolysis of 1,1,1-trifluoro-2-bromo-2-chloroethane were studied by matrix IR spectroscopy. The
decomposition of 1,1,1-trifluoro-2-bromo-2-chloroethane was shown to occur predominantlyvia two directions: to form the 1,1,1-trifluoro-2-chloroethyl radical and trifluoromethylcarbene isomerizing to trifluoroethylene.
The CF3CHCl radical has been detected in the matrix for the first time. The bands observed in the IR spectrum were calculated by
the quantum-chemical B3LYP/6-311 G(d,p) method and assigned to normal vibrations of the radical.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2085–2088, October, 1998. |
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Keywords: | 1 1 1-trifluoro-2-chloroethyl radical pyrolysis matrix isolation IR spectroscopy quantum-chemical calculations |
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