Bulletin of the Korean Chemical Society

  • 제1권1호
  • /
  • Pages.30-35
  • /
  • 1980
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  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Thermal Unimolecular Decomposition Reactions of Ethyl Bromide at 724.5 - 755.1$^{\circ}$K

  • Tae-Joon Park (Department of Chemistry, Korea Advanced Institute of Science) ;
  • K. H. Jung (Department of Chemistry, Korea Advanced Institute of Science)
  • 발행 : 1980.03.30
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초록

The thermal decomposition reaction of ethyl bromide was studied in the temperature range of 724.5-$755.1^{\circ}K$. Pressure dependence of the reaction was observed in its fall-off region. A theoretical evaluation of the rate constants was carried out adopting RRKM formulation in the region and was compared with the experimental observation.The validity of theory was also reevaluated by using the observed results. The observed activation energy in this study and Arrhenius A-factor were 51.7 kcal/mole and $10^{12.5}$, respectively. The small A-factror in the study was discussed in terms of the formation of a tight activated complex and the molecular elimination as a prevalent reaction mode.

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참고문헌

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피인용 문헌

  1. The kinetics and mechanisms of the gas-phase pyrolysis of ethyl 4-bromobutyrate. The ion-pair mechanism revisited vol.15, pp.8, 1980, https://doi.org/10.1002/kin.550150808
  2. Maximally inhibited gas phase elimination kinetics of methyl 3-bromopropionate vol.27, pp.1, 1985, https://doi.org/10.1007/bf02064484