Kinetics of the hydrogen abstraction from propane, n-butane, isobutane, and cyclopentane by difluoroamino-radicals
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 2967-2971
- https://doi.org/10.1039/j19710002967
Abstract
The rates of hydrogen abstraction from propane, n-butane, isobutane, and cyclopentane by difluoroamino-radicals have been measured in the gas phase between 352 and 463 K. The Arrhenius parameters obtained were as follows (log A/cm3 mol–1 s– followed by E/kJ mol–1): Me2CH2: 10·39 ± 0·78, 94·42 ± 6·41; EtCH3: 11·80 ± 0·51, 108·98 ± 4·21; MeEtCH2: 12·29 ± 0·19, 103·37 ± 1·46; Me3CH: 11·04 ± 0·15 86·15, 86·15 ± 1·13; cyclopentane; 11·36 ± 0·29, 92·26 ± 2·28. The activation energies have been compared with those of similar abstractions by other radicals. The rate coefficients for the reverse reactions were calculated from thermochemical considerations.Keywords
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