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The arrhenius factors for some six-center unimolecular reactions
Authors:A. T. Blades  H. S. Sandhu
Abstract:The Pyrolysis of ethyl formate has been carried out in the temperature range 557°–630° and the rate expression k = 1012.34 e?48,100±500/RT sec?1 was obtained, in agreement with the prediction of O'Neal and Benson [1]. Calculated Arrhenius A-factors and experimental rate constants have been used to obtain the activation energies for the decomposition of the following compounds by the six-center molecular mechanism (in kcal/mole): 2-pentanone 59; methoxyacetone, 58; 2,4-pentanedione, 51; methyl butyrate, ≥ 70; 1-heptene, 54, and 4-methyl-1-hexene, 54–55.
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