EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 665 (September 2022) A&A, 665 (2022) A27 Full HTML
Open Access

Table 4

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 C2H4.

Reaction Tc(K) Tmin (K) k(Tmin) (s−1)
C2H4 + H → C2H5 168 40 1.2 × 106
C2H4 + OH → C2H4OH 49 49 1.4 × 106, (a)
C2H4 + OH → C2H3 + H20 354 40 5.6 × 101
C2H4 + NH2 → C2H4NH2 93 30 2.6 × 10−3
C2H4 + CH3 → C2H4CH3 121 30 2.5 × 10−12

Notes. (a)Instanton rate constants did not converge below Tc and an Eckart barrier estimate of the rate constant at 30 K is k(30 K) = 1.18 × 104 s−1.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.