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Table C.1:

Rates k of the main reactions of the cyanide chemistry.
Reaction $\alpha$ $\beta$ $\gamma$ Ref.
CN + h$\nu$ $\rightarrow $C + N 4.64 (-10) 0.00 3.6 a
HCN + h$\nu$ $\rightarrow $CN + H 5.70 (-10) 0.00 2.6 a
HNC + h$\nu$ $\rightarrow $CN + H 5.70 (-10) 0.00 2.6 a
HCNH+ + e- $\rightarrow $HCN + H 9.45 (-08) -0.65 0.0 b,c
HCNH+ + e- $\rightarrow $HNC + H 9.45 (-08) -0.65 0.0 b,c
HCNH+ + e- $\rightarrow $CN + 2H 9.10 (-08) -0.65 0.0 b,c
HCNH+ + e- $\rightarrow $CN + H2 1.80 (-08) -0.65 0.0 b,c
H2NC+ + e- $\rightarrow $HNC + H 1.75 (-07) -0.50 0.0 d
H2NC+ + e- $\rightarrow $CN + H2 1.75 (-07) -0.50 0.0 d
HNC+ + e- $\rightarrow $CN + H 3.90 (-07) -1.00 0.0 e,f
HCN+ + e- $\rightarrow $CN + H 3.90 (-07) -1.00 0.0 e
CH3+ + N $\rightarrow $HCN+ + H2 2.20 (-11) 0.00 0.0 g
CH3+ + N $\rightarrow $HCNH+ + H 2.20 (-11) 0.00 0.0 g
CH3+ + N $\rightarrow $H2NC+ + H 2.20 (-11) 0.00 0.0 g
CH2+ + N $\rightarrow $HCN+ + H 4.70 (-10) 0.00 0.0  
CH2+ + N $\rightarrow $HNC+ + H 4.70 (-10) 0.00 0.0  
CH+ + N $\rightarrow $CN+ + H 1.90 (-10) 0.00 0.0 h
CH2 + N $\rightarrow $HCN + H 3.95 (-11) 0.17 0.0 i
CH + N $\rightarrow $CN + H 2.00 (-10) 0.00 0.0 j
C+ + NH $\rightarrow $CN+ + H 7.80 (-10) 0.00 0.0  
C+ + NH2 $\rightarrow $HCN+ + H 1.10 (-09) 0.00 0.0  
HCN+ + H2 $\rightarrow $HCNH+ + H 9.00 (-10) 0.00 0.0 k
HNC+ + H2 $\rightarrow $HCNH+ + H 9.00 (-10) 0.00 0.0 k

Notes. The photoreaction rates writte $k = \alpha \cdot {\rm exp}(-\gamma A_V)$ while all the other reaction rates are derived as $k = \alpha \cdot (T/{\rm 300~K})^{\beta} {\rm exp}(-\gamma / T)$ where T is the effective temperature (Zsargó & Federman 2003). Numbers in parenthesis are power of 10.

References. (a) Roberge et al. (1991); (b) Florescu-Mitchell & Mitchell (2006); (c) Semaniak et al. (2001); (d) Adams & Smith (1988); (e) Sheehan et al. (1999); (f) Talbi et al. (2000); (g) Fehsenfeld (1976); (h) Viggiano et al. (1980); (i) Smith et al. (2004); (j) Brownsword et al. (1996); (k) Huntress (1977).


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