CH + H2 -> H + CH2

From the results of a 2-channel variational RRKM calculation of Wagner and Harding (1992). (A. F. Wagner, private communication, 1996) See figure below for a comparison to experimental data. The related CH3 decomposition reactions are 50 and 289.

REFERENCES:

• Zabarnick, S., Fleming, J.W., and Lin, M.C. (1986) J. Chem. Phys. 85, 4375.
• Becker, K.H., Kurtenbach, R., and Wiesen, P. (1991) J. Phys. Chem. 95, 2390.
• Bohland, T., Temps, F., and Wagner, H. Gg. (1987) J. Phys. Chem. 91, 1205.
• McIlroy, A., and Tully, F.P. (1993) J. Chem. Phys. 99, 3597.
• Wagner, A.F., and Harding, L.B. (1992) ACS Symp. Ser. 502, 48.
• Brownsword, R.A., Canosa, A., Rowe, B.R., Sims, I.R., Smith, I.W.M., Stewart, D.W.A., Symonds, A.C., and Travers, D. (1997) J. Chem. Phys. 106, 7662.

COMMENTS:

Served as an optimization variable in GRI-Mech 3.0 release, and was multiplied by 0.74. Also served as an optimization variable in GRI-Mech 1.2 and 2.11 releases, using a different rate expression.

______________________________________________________________________
    Temp      delta-S     delta-H      kf          kr         Keq
     (K)    (cal/mol K)  (kcal/mol) ----(mol,cm3,s)-----   
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     300        -1.1         3.1    5.86E+11    1.86E+14    3.15E-03
     500        -1.2         3.1    4.72E+12    1.91E+14    2.47E-02
    1000        -1.0         3.3    2.26E+13    1.90E+14    1.19E-01
    1500         -.7         3.6    3.80E+13    1.81E+14    2.11E-01
    2000         -.6         3.8    4.94E+13    1.72E+14    2.87E-01
    2500         -.6         3.8    5.78E+13    1.66E+14    3.48E-01
    3000         -.7         3.6    6.42E+13    1.63E+14    3.94E-01
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