O + C2H4 -> CH3 + HCO

SOURCE:

We assumed the reaction products to be CH3 + HCO and fitted the data reported by Klemm et al. (1990).

COMMENTS:

Klemm et al. (1990) provided a dual-exponential fit to their results. Baulch et al. (1992) chose a procedure similar to ours, omitted a small activation energy term in the final fit, and recommended expressions that yield 60% for the products given here and 35% CH2CHO + H. We did not include the latter channel in order to avoid having to add CH2CHO to the set of species. At high temperatures it is likely that direct H abstraction also contributes.

Klemm et al. (1990)

Klemm, R.B., Sutherland, J.W., Wickramaaratchi, M.A., and Yarwood, G. (1990) J. Phys. Chem. 94, 3354.

Baulch et al. (1992)

Baulch, D.L., Cobos, C.J., Cox, R.A., Esser, C., Frank, P., Just, Th., Kerr, J.A., Pilling, M.J., Troe, J., Walker, R.W., and Warnatz, J. J. (1992) Phys. Chem. Ref. Data 21, 411.

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    Temp      delta-S     delta-H      kf          kr         Keq
     (K)    (cal/mol K)  (kcal/mol) ----(mol,cm3,s)-----   
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     300         9.1       -27.0    4.53E+11    1.09E-10    4.15E+21
     500         9.6       -26.8    1.34E+12    2.13E-02    6.28E+13
    1000         8.9       -27.4    5.31E+12    6.44E+04    8.24E+07
    1500         8.0       -28.4    1.16E+13    1.49E+07    7.77E+05
    2000         7.3       -29.7    2.00E+13    2.93E+08    6.82E+04
    2500         6.7       -31.0    3.04E+13    2.05E+09    1.48E+04
    3000         6.2       -32.4    4.27E+13    8.33E+09    5.12E+03
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