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Table 6

Crossover temperatures (Tc in K) and reaction rate-constants k(Tmin, in s−1) at the lowest temperature achieved in our calculations (Tmin in K), for the exothermic reactions starting from C2H6.

Reaction Tc(K) Tmin (K) k(Tmin) (s−1)
C2H6 + H → C2H5 + H2 312 65 5.6 × 100
C2H6 + OH → C2H5 + H2O 231 25 1.5 × 103
C2H6 + NH2 → C2H5 + NH3(a) 412 20 6.3 × 100
C2H6 + CH3 → C2H5 + CH4(a) 402 20 2.3 × 10−4

Notes. (a)Rate constants are approximated and obtained from a symmetric Eckart barrier (see text).

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