CH2(S) + CH3 -> H + C2H4

SOURCE:

The rate coefficient is the average of the values of Langford et al. (1983), Ashfold et al. (1981), and Wegener (1990) with the temperature dependence taken from Wegener (1990).

COMMENTS:

Estimated from reaction 150CH2(S) + CH4 -> CH3 + CH3.

REFERENCES:

Langford et al. (1983)

Langford, A.O., Petek, H., and Moore, C.B. (1983) J. Chem. Phys. 78, 6650.

Ashfold et al. (1981)

Ashfold, M.N.R., Fullstone, M.A., Hancock, G., and Keltey, G.W (1981) Chem. Phys. 55, 245.

Wegener (1990)

Wegener, R. (1990) Z. Naturforschung 45a, 649.

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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       -11.8       -73.2    3.12E+13    5.43E-38    5.75E+50
     500       -12.2       -73.4    2.13E+13    8.54E-17    2.49E+29
    1000       -10.9       -72.4    1.60E+13    5.96E-01    2.68E+13
    1500        -9.7       -70.9    1.45E+13    9.12E+04    1.59E+08
    2000        -8.8       -69.3    1.39E+13    3.13E+07    4.42E+05
    2500        -8.1       -67.8    1.35E+13    9.62E+08    1.40E+04
    3000        -7.6       -66.3    1.32E+13    8.95E+09    1.47E+03
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