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Table H.1

The reactions in our chemical network.

No. Reaction Energy Rate coefficient Ref.
Neutral chemistry:-
1 N + O2 → NO + O 1.40 eV 1.5 ×10−14 Tgas exp(–3270.0/Tgas) 1
2 N + NO → N2 + O 2.68 eV 4.0 ×10−11 (Tgas/300.0)−0.2 exp(–20.0/Tgas) 2
3 N + CO2 → NO + CO 1.06 eV 1.7 ×10−16 1
4 N + NO2 → N2O + O 1.81 eV 3.0 ×10−12 3
5 N + H2 → NH + H –1.06 eV 1.69 ×10−9 exp(–18 095.0/Tgas) 4
6 NO + O + M → NO2 + M 9.0 ×10−32 (300.0/Tgas)1.5 3
7 NO + O3 → NO2 + O2 2.03 eV 2.0 ×10−12 exp(–1400.0/Tgas) 3
8 NO + OH + M → HNO2 + M 7.0 ×10−31 (300.0/Tgas)2.6 3
9 NO + HO2 → NO2 + OH 0.31 eV 3.7 ×10−12 exp(250.0/Tgas) 3
10 NO + NO3 → NO2 + NO2 1.34 eV 1.5 ×10−11 exp(170.0/Tgas) 3
11 O + O + M → O2 + M 5.10 eV 9.59 ×10−34 exp(480.0/Tgas) 5
12 O + O2 + M → O3 + M 1.10 eV 6.0 ×10−34 (300.0/Tgas)2.3 5
13 O + O3 → O2 + O2 4.06 eV 8.0 ×10−12 exp(–2060.0/Tgas) 5
14 O + NO2 → NO + O2 2.0 eV 6.5 ×10−12 exp(120.0/Tgas) 3
15 O + NO3 → NO2 + O2 2.97 eV 1.0 ×10−11 3
16 O + H2O → OH + OH –0.31 eV 1.85 ×10−11 (Tgas/300.0)0.95 exp(–52 900/Tgas) 4
17 N(2D) + O → N + O 2.38 eV 6.90 ×10−13 5
18 N(2D) + O2 → NO + O(1D) 1.84 eV 9.7 ×10−12 exp(–185.0/Tgas) 5
19 N(2D) + O2 → NO + O 3.76 eV 5.58 ×10−12 (Tgas/300.0) 5
20 N(2D) + NO → N2 + O 5.63 eV 7 ×10−11 5
21 N(2D) → N 1.06 ×10−5 5
22 N(2D) + e → N + e 2.38 eV 3.86 ×10−10 (Tgas/300.0)0.81 1
23 N(2D) + CO2 → NO + CO 3.41 eV 3.5 ×10−13 5
24 N(2D) + N2 → N + N2 2.38 eV 1.7 ×10−14 5
25 N(2D) + CO → N + CO 1.9 ×10−12 1
26 N(2D) + H2 → NH + H 4.2 ×10−11 exp(–880.0/Tgas) 1
27 O(1D) + N2 → O + N2 1.96 eV 1.8 ×10−11 exp(107.0/Tgas) 5
28 O(1D) → O 8.33 ×10−3 5
29 O(1 D) + H2 O → OH + OH 1.23 eV 2.2 ×10−10 5
30 O(1 D) + O2 → O2 (1 Σg) + O 0.33 eV 0.75 × 3.2 ×10−11 exp(70.0/Tgas) 5
31 O(1 D) + O2 → O2 + O 1.96 eV 0.25 × 3.2 ×10−11 exp(70.0/Tgas) 5
32 O(1 D) + O → O + O 1.96 eV 6.47 ×10−12 (Tgas/300.0)0.14 1
33 O(1 D) + H2 → H + OH 1.88 eV 1.0 ×10−10 5
34 O(1 D) + CO2 → O + CO2 1.96 eV 7.4 ×10−11 exp(120.0/Tgas) 5
35 O(1 D) + O3 → O2 + O2 6.03 eV 1.2 ×10−10 5
36 O(1 D) + O3 → O2 + O + O 0.87 eV 1.2 ×10−10 5
37 O(1 D) + CO → O + CO 3.6 ×10−11 1
38 O(1 D) + e → O + e 2.87 ×10−10 (Tgas/300.0)0.91 1
39 O(1 D) + N2 → N2 O 3.5 ×10−37 (300.0/Tgas)0.6 3
40 O(1 D) + N2 O → N2 + O2 4.9 ×10−11 3
41 O(1 D) + N2 O → NO + NO 6.7 ×10−11 3
42 H2 O + H2 → H + OH + H2 5.8 ×10−9 exp(–52 900/Tgas) 4
43 OH + N → NO + H 2.10 eV 5.0 ×10−11 5
44 OH + O → H + O2 0.72 eV 2.0 ×10−11 exp(117.0/Tgas) 5
45 OH + CO → CO2 + H 1.07 eV 1.5 ×10−13 5
46 OH + H2 → H2 O + H 0.65 eV 7.7 ×10−12 exp(–2100.0/Tgas) 5
47 OH + OH → H2 O + O 0.73 eV 6.2 ×10−14 (Tgas/300.0)2.62 exp(945.0/Tgas) 2
48 OH + H + M → H2 O + M 5.17 eV 6.1 × 5
49 OH + H → H2 + O 0.08 eV 1.4 ×10−14 Tgas exp(–3500.0/Tgas) 5
50 OH + O3 → HO2 + O2 1.73 eV 1.6 ×10−12 exp(–940.0/Tgas) 5
51 OH + OH + M → H2O2 + M 6.9 ×10−31 (300.0/Tgas)0.8 3
52 OH + NO2 + M → HNO3 + M 2.6 ×10−30 (300.0/Tgas)3.2 3
53 OH + NO3 → NO2 + HO2 0.62 eV 2.2 ×10−11 3
54 OH + HNO2 → NO2 + H2O 1.8 ×10−11 exp(–390.0/Tgas) 3
55 OH + HNO3 → NO3 + H2O 7.2 ×10−15 exp(785.0/Tgas) 3
56 CO + O + M → CO2 + M 5.51 eV 6.6 ×10−33 exp(–1103/Tgas) 5
57 H2 + O(1D) → H + OH 1.88 eV 1.0 ×10−10 5
58 H2 + O → H + OH 0.08 eV 1.6 ×10−11 exp(–4570.0/Tgas) 5
59 H2 + M → H + H + M –4.52 eV 1.5 ×10−9 exp(–4.8 ×104/Tgas) 5
60 H2 + H2 → H + H + H2 –2.24 eV 1.25 ×10−11 exp(–52 000.0/Tgas) 4
61 H2 + H → H + H + H 0.02 eV 1.0 ×10−10 exp(–52 000.0/Tgas) 4
62 H + O2 → O + OH –0.72 eV 3.7 ×10−10 exp(–8450.0/Tgas) 5
63 H + O3 → OH + O2 2.004 eV 1.4 ×10−10 exp(–470.0/Tgas) 5
64 H + H + M → H2 + M 4.52 eV 5.7 ×10−32 (300.0/Tgas)1.6 5
65 H + H2O → H2 + OH –0.65 eV 1.5 ×10−10 exp(–10 250.0/Tgas) 5
66 H + O2 + M → HO2 + M 2.11 eV 5.5 ×10−32 (300.0/Tgas)1.6 5
67 H + H + CO2 → H2 + CO2 1.2 ×10−32 (Tgas/300.0)−1.3 1
68 HO2 + H → H2O + O 2.34 eV 8.1 ×10−11 0.02 5
69 HO2 + H → H2 + O2 2.41 eV 8.1 ×10−11 0.08 5
70 HO2 + H → OH + OH 1.61 eV 8.1 ×10−11 0.9 5
71 HO2 + OH → H2O + O2 3.06 eV 4.8 ×10−11 exp(250.0/Tgas) 5
72 HO2 + O → OH + O2 2.33 eV 3.0 ×10−11 exp(200.0/Tgas) 5
73 HO2 + O3 → OH + O2 + O2 1.23 eV 1.1 ×10−14 exp(–500.0/Tgas) 5
74 HO2 + HO2 → H2O2 + O2 1.71 eV 2.3 ×10−13 exp(600.0/Tgas) 5
75 H2O2 + OH → HO2 + H2O 1.35 eV 2.9 ×10−12 exp(–160.0/Tgas) 5
76 H2O2 + O → HO2 + OH 3.44 eV 1.4 ×10−12 exp(–2000.0/Tgas) 5
77 O2(1Σg) + N2 → O2(1Δg) + N2 0.65 eV 2.1 ×10−15 5
78 O2(1Σg) + CO2 → O2(1Δg) + CO2 0.65 eV 4.2 ×10−13 5
79 O2(1Σg) + O3 → O2(1Δg) + O3 0.65 eV 2.2 ×10−11 5
80 O2 (1 Σg) + O → O2 (1 Δg) + O 0.65 eV 8.0 ×10−14 5
81 O2 (1 Σg) + O2 → O2 (1 Δg) + O2 0.65 eV 3.9 ×10−17 5
82 O2 (1 Σg) → O2 0.085 5
83 O2 (1 Δg) + O2 → O2 + O2 0.98 eV 3.6 ×10−18 exp(–220.0/Tgas) 5
84 O2 (1 Δg) + N2 → O2 + N2 0.98 eV 1.0 ×10−20 5
85 O2 (1 Δg) + O → O2 + O 0.98 eV 1.3 ×10−16 5
86 O2 (1 Δg) → O2 2.58 ×10−4 5
87 C + CO2 → CO + CO 4.53 eV 7.62 ×10−14 (Tgas/300.0)0.5 exp(–3480.0/Tgas) 1
88 C + NO → CO + N 4.67 eV 7.5 ×10−11 (Tgas/300.0)−0.16 1
89 C + O2 → CO + O 6.05 eV 4.9 ×10−11 (Tgas/300.0)−0.32 1
90 NH + H2 → NH2 + H –0.48 eV 5.96 ×10−11 exp(–7782.0/Tgas) 4
91 NH + H → N + H2 1.10 eV 1.0 ×10−12 exp(–2400.0/Tgas) 4
92 N(2 P) + CO2 → N(2 D) + CO2 2.0 ×10−15 1
93 N(2 P) + CO → N(2 D) + CO 6.0 ×10−15 1
94 N(2 P) + O2 → NO + O 1.03 ×10−12 exp(–60.0/Tgas) 1
95 N(2 P) + O2 → NO + O(1 D) 1.03 ×10−12 exp(–60.0/Tgas) 1
96 N(2 P) + O2 → NO + O(1 S) 1.03 ×10−12 exp(–60.0/Tgas) 1
97 N(2 P) + O → N(2 D) + O 1.7 ×10−11 1
98 N(2 P) + NO → N(2 D) + NO 2.9 ×10−11 1
99 N(2 P) + N2 → N(2 D) + N2 5.0 ×10−17 1
100 N(2 P) + N → N(2 D) + N 6.2 ×10−13 1
101 N(2 P) + H2 → N(2 D) + H2 2.5 ×10−13 1
102 N(2 P) + e → N + e 2.04 ×10−10 (Tgas/300.0)0.85 1
103 N(2 P) + e → N(2 D) + e 9.5 ×10−9 1
104 N(2 P) → N(2 D) 7.9 ×10−2 1
105 N(2 P) → N 5.0 ×10−3 1
106 O(1S) + CO2 → O(1D) + CO2 2.02 ×10−11 exp(–1327.0/Tgas) 1
107 O(1S) + CO2 → O + CO2 1.19 ×10−11 exp(–1327.0/Tgas) 1
108 O(1S) + O2 → O(1D) + O2 1.36 ×10−12 exp(–815.0/Tgas) 1
109 O(1S) + O2 → O + O2 3.04 ×10−12 exp(–815.0/Tgas) 1
110 O(1S) + O → O(1D) + O 0.0 1
111 O(1S) + N2 → O(1D) + N2 5.0 ×10−17 1
112 O(1S) + CO → O(1D) + CO 7.4 ×10−14 exp(–961.0/Tgas) 1
113 O(1S) + H2 → O(1D) + H2 2.86 ×10−16 1
114 O(1S) + e → O(1D) + e 8.5 ×10−9 1
115 O(1S) + e → O + e 1.56 ×10−10 (Tgas/300.0)0.94 1
116 O(1S) → O(1D) 1.06 1
117 O(1S) → O 4.5 ×10−2 1
118 NO2 + O3 → NO3 + O2 1.0 eV 1.2 ×10−13 exp(–2450.0/Tgas) 3
119 NO2 + H → NO + OH 1.20 eV 4.0 ×10−10 exp(–340.0/Tgas) 3
120 NO3 + NO3 → NO2 + NO2 + O2 0.39 eV 8.5 ×10−13 exp(–2450.0/Tgas) 3
121 Cl + O3 → ClO + O2 1.68 eV 2.9 ×10−11 exp(–260.0/Tgas) 3
122 ClO + O → Cl + O2 2.39 eV 3.0 ×10−11 exp(70.0/Tgas) 3
123 ClO + NO → NO2 + Cl 0.37 eV 6.4 ×10−12 exp(290.0/Tgas) 3
124 NH2 + H → NH + H2 0.47 eV 1.05 ×10−10 exp(–4450.0/Tgas) 4
Ion chemistry:-
125 N + O2 → O + N2 3.52 eV 5.1 ×10−11 (300.0/Tgas)1.16 (Tgas ≤ 1000 K) 1
1.26 ×10−11 (Tgas/1000.0)0.57 (1000 ≤Tgas ≤ 2000 K) 1
2.39 ×10−11 (Tgas ≥ 2000 K) 1
128 N + O → NO+ + N(2D) 0.70 eV 6.55 ×10−11 (Tgas/1500.0)0.2 (Tgas ≥ 1500 K) 1
1.33 ×10−10 (Tgas/300.0)−0.44 (Tgas ≤ 1500 K) 1
130 N + O → O+ + N2 1.96 eV 4.83 ×10−12 (Tgas/1500.0)0.41 (Tgas ≥ 1500 K) 1
7.0 ×10−12 (Tgas/300.0)−0.23 (Tgas ≤ 1500 K) 1
132 N + NO → NO+ + N2 6.25 eV 3.6 ×10−10 1
133 N + CO2 → CO + N2 1.81 eV 9.0 ×10−10 (300.0/Tgas)0.28 1
134 N + CO → CO+ + N2 1.57 eV 7.40 ×10−11 5
135 N + e → N + N 5.82 eV 2.2 ×10−8 (300.0/Tgas)0.39 5
136 N + e → N + N(2 D) 3.44 eV 1.98 ×10−7 (300.0/Tgas)0.39 5
137 N + N → N+ + N2 1.31 eV 1.0 ×10−11 1
138 N + Ar → Ar+ + N2 1.10 ×10−11 exp(–2089.0/Tgas) 1
139 N + H2 → N2 H+ + H 2.60 eV 1.52 ×10−9 1
140 N + e → N(2 D) + N(2 D) 1.01 ×10−7 (300.0/Tgas)0.39 1
141 N + e → N + N(2 P) 1.76 ×10−8 (300.0/Tgas)0.39 1
142 N + H2 O → N2 + H2 O+ 3.0 eV 2.2 ×10−9 2
143 N + H → N2 + H+ 2.07 eV 1.2 ×10−10 4
144 O + N2 → NO+ + NO 0.93 eV 1.0 ×10−15 1
145 O + N → NO+ + O 4.21 eV 1.0 ×10−10 1
146 O + NO → NO+ + O2 2.81 eV 4.4 ×10−10 5
147 O + e → O + O 6.99 eV 0.22 7.38 ×10−8 (1200.0/Tgas)0.56 (Tgas ≥ 1200 K) 5
0.22 1.95 ×10−7 (300.0/Tgas)0.7 (Tgas ≤ 1200 K) 5
149 O + e → O + O(1 D) 5.02 eV 0.42 7.38 ×10−8 (1200.0/Tgas)0.56 (Tgas ≥ 1200 K) 5
0.42 1.95 ×10−7 (300.0/Tgas)0.7 (Tgas ≤ 1200 K) 5
151 O + e → O(1 D) + O(1 D) 3.06 eV 0.36 7.38 ×10−8 (1200.0/Tgas)0.56 (Tgas ≥ 1200 K) 5
0.36 1.95 ×10−7 (300.0/Tgas)0.7 (Tgas ≤ 1200 K) 5
153 O + N(2 D) → NO+ + O 1.8 ×10−10 1
154 O + N(2 D) → N+ + O2 8.65 ×10−11 1
155 O + C → CO+ + O 4.18 eV 5.0 ×10−11 1
156 O + C → C+ + O2 0.88 eV 5.0 ×10−11 1
157 O + e → O(1 D) + O(1 S) 9.75 ×10−9 (300.0/Tgas)0.70 (Tgas ≤ 1200 K) 1
3.69 ×10−9 (1200.0/Tgas)0.56 (Tgas ≥ 1200 K) 1
159 NO+ + e → N + O 2.75 eV 8.4 ×10−8 (300.0/Tgas)0.85 5
160 NO+ + e → N(2D) + O 0.38 eV 3.36 ×10−7 (300.0/Tgas)0.85 5
161 O+ + NO → NO+ + O 4.36 eV 7.0 ×10−13 (300.0/Tgas)0.66 (Tgas ≤ 300 K) 1
7.0 ×10−13 (Tgas/300.0)0.87 (Tgas ≥ 300 K) 1
163 O+ + CO2 → O + CO 1.20 eV 1.1 ×10−9 (Tgas ≤ 800 K) 1
1.1 ×10−9 (Tgas/800.0)−0.39 (Tgas ≥ 800 K) 1
165 O+ + H2 → OH+ + H 0.36 eV 1.65 ×10−9 6
166 O+ + H → H+ + O 0.02 eV 7.26 ×10−11 exp(8.6/Tgas) 4
167 O+ + N2 → NO+ + N 1.09 eV 1.20 ×10−12 (300.0/Tgas)0.45 (Tgas ≤ 1000 K) 1
7.0 ×10−13 (Tgas/1000.0)2.12 (Tgas ≥ 1000 K) 1
169 O+ + O2 → O + O 1.56 eV 1.6 ×10−11 (300.0/Tgas)0.52 (Tgas ≤ 900 K) 1
9.0 ×10−12 (Tgas/900.0)0.92 (Tgas ≥ 900 K) 1
171 O+ + N(2D) → N+ + O 1.45 eV 1.3 ×10−10 5
172 O+ + e → O 3.7 ×10−12 (250.0/Tgas)0.7 5
173 O+ + C → C+ + O 1.0 ×10−10 1
174 O+ + H2O → O + H2O+ 1.05 eV 9.54 ×10−10 (0.62+2.579 (300.0/Tgas)0.5) 2
175 O+ + OH → OH+ + O 0.69 eV 3.6 ×10−10 4
176 O+ + OH → O + H 2.33 eV 3.6 ×10−10 4
177 CO + O → O + CO 1.33 eV 1.6 ×10−10 5
178 CO + O → O+ + CO2 0.13 eV 1.0 ×10−10 5
179 CO + NO → NO+ + CO2 4.51 eV 1.2 ×10−10 5
180 CO + H → H+ + CO2 0.17 eV 2.35 ×10−11 1
181 CO + e → CO + O 4.56 eV 3.5 ×10−7 (300.0/Tgas)0.5 1
182 CO + O2 → CO2 + O 1.77 eV 5.5 ×10−11 (300.0/Tgas)0.82 (Tgas ≤ 1500 K) 1
1.5 ×10−11 (Tgas/1500.0)0.75 (Tgas ≥ 1500 K) 1
184 CO + N → NO + CO+ 3.4 ×10−10 1
185 CO + N(2D) → N+ + CO2 2.0 ×10−10 1
186 CO + H → HCO+ + O 0.9 eV 4.46 ×10−10 1
187 CO + H2 → OCOH+ + H 9.5 ×10−10 (Tgas/300.0)−0.15 6
188 CO + H2O → CO2 + H2O+ 1.2 eV 5.6648 ×10−10 (0.62+2.579 (300.0/Tgas)0.5) 2
189 CO+ + O → O+ + CO 0.39 eV 1.4 ×10−10 5
190 CO+ + NO → NO+ + CO 4.75 eV 4.2 ×10−10 1
191 CO+ + CO2 → CO + CO 0.24 eV 1.1 ×10−9 5
192 CO+ + O2 → O + CO 2.04 eV 1.5 ×10−10 (300.0/Tgas)1.1 1
193 CO+ + H2 → HCO+ + H 2.12 eV 7.5 ×10−10 1
194 CO+ + H → H+ + CO 0.53 eV 4.0 ×10−10 1
195 CO+ + N → NO+ + C 0.26 eV 8.2 ×10−11 1
196 CO+ + e → C + O 1.8 ×10−7 (300.0/Tgas)0.55 1
197 CO+ + e → C + O(1 D) 0.25 ×10−7 (300.0/Tgas)0.55 1
198 CO+ + H2 O → CO + H2 O+ 1.46 eV 1.7 ×10−9 2
199 CO+ + H2 O → HCO+ + OH 1.47 eV 8.84 ×10−10 4
200 N+ + O2 → O+ + NO 1.28 eV 4.34 ×10−11 (300.0/Tgas)−0.45 (Tgas ≤ 1000 K) 1
7.53 ×10−11 (Tgas ≥ 1000 K) 1
202 N+ + O2 → O + N(2 D) 0.10 eV 8.65 ×10−11 (300.0/Tgas)−0.45 (Tgas ≤ 1000 K) 1
1.49 ×10−10 (Tgas ≤ 1000 K) 1
204 N+ + O2 → O + N 2.49 eV 2.02 ×10−10 (300.0/Tgas)−0.45 (Tgas ≤ 1000 K) 1
3.49 ×10−10 (Tgas ≥ 1000 K) 1
206 N+ + O2 → NO+ + O 6.70 eV 4.32 ×10−11 (300.0/Tgas)−0.45 (Tgas ≤ 1000 K) 1
7.47 ×10−11 (Tgas ≥ 1000 K) 1
208 N+ + O → O+ + N 0.98 eV 2.2 ×10−12 1
209 N+ + NO → NO+ + N 5.29 eV 4.72 ×10−10 (300.0/Tgas)0.24 1
210 N+ + CO2 → CO + N 0.78 eV 9.2 ×10−10 5
211 N+ + CO2 → CO+ + NO 1.57 eV 2.0 ×10−10 5
212 N+ + CO → CO+ + N 0.54 eV 4.93 ×10−10 (300.0/Tgas)0.5 5
213 N+ + H → H+ + N 0.90 eV 3.6 ×10−12 5
214 N+ + e → N 3.6 ×10−12 (250.0/Tgas)0.7 5
215 N+ + NO → N + O 2.31 eV 8.33 ×10−11 (300.0/Tgas)0.24 1
216 N+ + CO → NO+ + C 0.78 eV 6.16 ×10−11 (300.0/Tgas)0.5 1
217 N+ + CO → C+ + NO –1.28 eV 5.60 ×10−12 (300.0/Tgas)0.5 1
218 N+ + O2 → NO+ + O(1D) 1.75 ×10−10 (300.0/Tgas)−0.45 (Tgas ≤ 1000 K) 1
3.02 ×10−10 (Tgas ≥ 1000 K) 1
220 N+ + H2 → NH+ + H 0.071 eV 8.23 ×10−10 exp(–209.0/Tgas) 1
221 N+ + H2O → N + H2O+ 1.98 eV 2.6 ×10−9 2
222 H+ + O → O+ + H –0.02 eV 5.33 ×10−10 5
223 H+ + NO → NO+ + H 4.34 eV 1.9 ×10−9 5
224 H+ + H2 → H + H –1.83 eV 1.0 ×10−9 exp(–2.19 ×104/Tgas) 5
225 H+ + e → H 4.0 ×10−12 (300.0/Tgas)0.64 7
226 H+ + CO2 → HCO+ + O 0.71 eV 3.8 ×10−9 1
227 H+ + O2 → O + H 1.61 eV 1.17 ×10−9 1
228 H+ + He → HeH+ 8.0 ×10−20 (Tgas/300.0)−0.24 exp(–Tgas/4000.0) 6
229 H+ + H2O → H + H2O+ 1.03 eV 7.3 ×10−9 (Tgas/300.0)−0.5 2
230 H+ + H2 → H + H + H+ –2.15 eV 3.0 ×10−11 (Tgas/300.0)0.5 exp(–52 000.0/Tgas) 2
231 H+ + OH → OH+ + H 0.67 eV 2.1 ×10−9 4
232 OH+ + e → O + H 8.74 eV 6.5 ×10−7 4
233 OH+ + CO → HCO+ + O 1.19 eV 8.4 ×10−10 6
234 OH+ + NO → NO+ + OH 3.82 eV 3.59 ×10−10 6
235 OH+ + NO → HNO+ + O 0.53 eV 6.11 ×10−10 6
236 OH+ + H2 → H2O+ + H 1.08 eV 9.7 ×10−10 6
237 OH+ + N2 → N2H+ + O 0.1 eV 2.4 ×10−10 6
238 OH+ + CO2 → OCOH+ + O 0.6 eV 1.35 ×10−9 6
239 OH+ + O2 → O + OH 1.01 eV 3.8 ×10−10 6
240 OH+ + C → CH+ + O 1.54 eV 1.2 ×10−9 6
241 OH+ + N → NO+ + H 5.92 eV 8.9 ×10−10 6
242 OH+ + O → O + H 1.73 eV 7.1 ×10−10 6
243 OH+ + e → O(1D) + H 3.94 ×10−8 (Tgas/300.0)−1.28 6
244 OH+ + H2O → OH + H2O+ 0.43 eV 1.59 ×10−9 4
245 OH+ + H2 O → H3 O+ + O 2.14 eV 1.59 ×10−9 4
246 O+ (2 P) + N2 → N + O 3.02 eV 2.0 ×10−10 (300.0/Tgas)−0.55 8
247 O+ (2 P) + N2 → N+ + NO 0.70 eV 1.0 ×10−10 5
248 O+ (2 P) + O → O+ + O 5.20 eV 4.0 ×10−10 8
249 O+ (2 P) → O+ 0.047 5
250 O+ (2 P) → O+ (2 D) 0.171 5
251 O+ (2 P) + e → O+ + e 5.00 eV 3.03 ×10−8 (300.0/Tgas)0.5 1
252 O+ (2 P) + e → O+ (2 D) + e 1.69 eV 1.84 ×10−7 (300.0/Tgas)0.5 1
253 O+ (2 P) + CO2 → CO + O 6.0 ×10−11 1
254 O+ (2 P) + CO2 → CO + O 1.0 ×10−9 1
255 O+ (2 P) + CO → CO+ + O 1.3 ×10−9 1
256 O+ (2 P) + O2 → O+ + O2 1.3 ×10−10 1
257 O+ (2 P) + N2 → O+ + N2 6.2 ×10−10 exp(–340.0/Tgas) (Tgas ≤ 4000 K) 1
258 O+ (2 P) + N → O+ + N(2 D) 1.0 ×10−11 1
259 O+ (2 P) + NO → NO+ + O 1.2 ×10−9 1
260 O+ (2 P) + H2 → OH+ + H 8.5 ×10−10 1
261 O+ (2 P) + H2 → H + O 1.01 ×10−9 (Tgas/300.0)−0.98 exp(–285.0/Tgas) 6
262 O+ (2 P) + H2 → H+ + OH 2.16 ×10−10 (Tgas/300.0)−0.97 exp(–292.0/Tgas) 6
263 O+ (2 P) + H2 → H+ + O + H 2.16 ×10−10 (Tgas/300.0)−0.97 exp(–292.0/Tgas) 6
264 O+ (2 P) + O2 → O + O 1.3 ×10−10 8
265 O+ (2 D) + N2 → O+ + N2 3.31 eV 8.0 ×10−10 5
266 O+ (2 D) + N2 → N + O 1.33 eV 1.5 ×10−10 (300.0/Tgas)−0.55 8
267 O+ (2 D) + O → O+ + O 3.31 eV 1.0 ×10−11 5
268 O+ (2 D) + O2 → O + O 4.87 eV 7.0 ×10−10 5
269 O+(2D) → O+ 4.85 ×10−5 1
270 O+(2D) + e → O+ + e 3.31 eV 6.03 ×10−8 (300.0/Tgas)0.5 1
271 O+(2D) + CO2 → O + CO 6.0 ×10−11 1
272 O+(2D) + CO2 → CO + O 1.0 ×10−9 1
273 O+(2D) + CO → CO+ + O 1.3 ×10−9 1
274 O+(2D) + NO → NO+ + O 1.2 ×10−9 1
275 O+(2D) + N → N+ + O 1.5 ×10−10 1
276 O+(2D) + H2 → OH+ + H 1.5 ×10−9 1
277 O+(2D) + H2 → H + O 1.645 ×10−10 (Tgas/300.0)−0.98 exp(–302.4/Tgas) 1
278 O+(2D) + H2 → H+ + OH 7.2 ×10−11 (Tgas/300.0)−0.95 exp(–335.1/Tgas) 6
279 O+(2D) + N2 → NO+ + N 2.5 ×10−11 8
280 H + O → OH+ + H 2.17 eV 1.5 ×10−9 5
281 H + H2 → H + H 1.70 eV 2.24 ×10−9 (Tgas/300.0)−0.042 exp(–Tgas/46600.0) 6
282 H + H → H+ + H2 1.83 eV 6.4 ×10−10 5
283 H + e → H + H 10.91 eV 1.75 ×10−8 (300.0/Tgas)0.4 6
284 H + CO2 → OCOH+ + H 2.94 eV 2.35 ×10−9 6
285 H + Ar → ArH+ + H 2.3 ×10−9 6
286 H + N2 → N2H+ + H 2.44 eV 2.3 ×10−9 6
287 H + CO → HCO+ + H 3.53 eV 7.65 ×10−10 6
288 H + CO → CO+ + H2 1.51 eV 6.44 ×10−10 6
289 H + O2 → HO + H 1.74 eV 1.53 ×10−9 6
290 H + O2 → O + H2 3.42 eV 4.94 ×10−10 6
291 H + C → CH+ + H 3.89 eV 2.4 ×10−9 6
292 H + N → NH+ + H 0.96 eV 1.9 ×10−9 6
293 H + NO → NO+ + H2 6.23 eV 1.1 ×10−9 6
294 H + H2O → H2 + H2O+ 2.84 eV 3.9 ×10−9 2
295 H + He → HeH+ + H 1.30 ×10−10 4
296 H + H2O → H3O+ + H 4.48 eV 3.4 ×10−9 4
297 H + H → H + H2 –1.70 eV 2.08 ×10−9 exp(–19 900.0/Tgas) 4
298 H + e → H2 + H 9.21 eV 1.7 ×10−8 (300.0/Tgas)0.52 6
299 H + e → H + H + H 4.69 eV 5.1 ×10−8 (300.0/Tgas)0.52 6
300 H + N2 → N2 H+ + H2 0.73 eV 1.63 ×10−9 6
301 H + O → OH+ + H2 0.72 eV 7.98 ×10−10 (Tgas/300.0)−0.156 exp(–1.41/Tgas) 6
302 H + O → H2 O+ + H 1.74 eV 3.42 ×10−10 (Tgas/300.0)−0.156 exp(–1.41/Tgas) 6
303 H + O2 → HO + H2 0.024 eV 6.5 ×10−10 6
304 H + CO → HCO+ + H2 1.81 eV 1.36 ×10−9 (Tgas/300.0)−0.142 exp(3.41/Tgas) 6
305 H + CO2 → OCOH+ + H2 1.23 eV 2.5 ×10−9 6
306 H + NO → HNO+ + H2 1.16 eV 1.94 ×10−9 6
307 H + C → CH+ + H2 2.17 eV 2.0 ×10−9 6
308 H + H2 O → H3 O+ + H2 2.76 eV 5.9 ×10−9 4
309 H + OH → H2 O+ + H2 1.78 eV 1.3 ×10−9 4
310 H2 O+ + H2 → H3 O+ + H 1.67 eV 6.1 ×10−10 2
311 H2 O+ + C → CH+ + OH 0.43 eV 1.1 ×10−9 2
312 H2 O+ + CO → HCO+ + OH 0.07 eV 5.0 ×10−10 2
313 H2 O+ + H2 O → H3 O+ + OH 1.02 eV 2.1 ×10−9 2
314 H2 O+ + e → O + H + H 3.53 ×10−6 4
315 H2 O+ + e → OH + H 1.09 ×10−6 4
316 H2 O+ + e → O + H2 5.72 ×10−7 4
317 H2 O+ + O → O + H2 0.68 eV 4.0 ×10−11 4
318 H2 O+ + O2 → O + H2 O 0.58 eV 4.6 ×10−10 4
319 HCO+ + C → CH+ + CO 0.46 eV 1.1 ×10−9 6
320 HCO+ + e → H + CO 2.0 ×10−7 (Tgas/300.0)−1.25 (Tgas ≤ 300 K) 6
2.0 ×10−7 (Tgas/300.0)−1.0 (Tgas ≥ 300 K) 6
322 HCO+ + H2 O → H3 O+ + CO 1.05 eV 2.5 ×10−9 4
323 HCO+ + OH → H2 O+ + CO 0.068 eV 6.2 ×10−10 4
324 C+ + CO2 → CO+ + CO 3.02 eV 1.1 ×10−9 1
325 C+ + NO → NO+ + C 2.12 eV 7.5 ×10−10 (300.0/Tgas)0.2 1
326 C+ + O2 → O+ + CO 3.76 eV 5.22 ×10−10 1
327 C+ + O2 → CO+ + O 3.36 eV 3.48 ×10−10 1
328 C+ + H2 → CH+ + H –0.28 eV 7.40 ×10−10 exp(–4538.0/Tgas) 1
329 C+ + H2O → C + H2O+ –1.26 eV 2.4 ×10−10 2
330 C+ + e → C 1.43 ×10−10 4
331 C+ + H2O → HCO+ + H 3.72 eV 9.0 ×10−10 4
332 C+ + OH → CO+ + H 4.06 eV 7.7 ×10−10 4
333 Ar+ + CO2 → Ar + CO 5.0 ×10−10 (Tgas ≤ 700 K) 1
5.0 ×10−10 (700.0/Tgas) (Tgas ≥ 700 K) 1
335 Ar+ + O2 → Ar + O 4.0 ×10−11 (300.0/Tgas)0.78 (Tgas ≤ 900 K) 1
2.08 ×10−11 (Tgas/900.0)1.65 (Tgas ≥ 900 K) 1
337 Ar+ + CO → Ar + CO+ 3.7 ×10−11 (300.0/Tgas)0.43 (Tgas ≤ 900 K) 1
2.3 ×10−11 (Tgas/900.0) (Tgas ≥ 900 K) 1
339 Ar+ + N2 → Ar + N 1.1 ×10−11 (Tgas/300.0)1.13 1
340 Ar+ + NO → Ar + NO+ 3.1 ×10−10 1
341 Ar+ + H2 → Ar + H 1.78 ×10−11 1
342 Ar+ + H2 → ArH+ + H 8.72 ×10−10 1
343 Ar+ + H2O → Ar + H2O+ 1.5 ×10−10 9
344 N2H+ + CO → HCO+ + N2 1.11 eV 8.8 ×10−10 6
345 N2H+ + CO2 → OCOH+ + N2 1.07 ×10−9 6
346 N2H+ + NO → HNO+ + N2 0.46 eV 3.4 ×10−10 6
347 N2H+ + O → OH+ + N2 0.016 eV 2.4 ×10−10 exp(–589.0/Tgas) 6
348 N2H+ + C → CH+ + N2 1.47 eV 1.1 ×10−9 6
349 N2H+ + e → N2 + H 2.325 ×10−7 (Tgas/300.0)−0.84 6
350 N2H+ + e → NH + N 1.755 ×10−8 (Tgas/300.0)−0.84 6
351 NH+ + H2O → NH + H2O+ 0.90 eV 1.05 ×10−9 2
352 NH+ + e → N + H 7.45 ×10−7 4
353 NH+ + H2 → N + H 0.88 eV 2.25 ×10−10 4
354 NH+ + H2 → NH + H 1.9 eV 1.28 ×10−8 4
355 CH+ + H2 → CH + H 0.22 eV 1.2 ×10−9 6
356 CH+ + O → CO+ + H 4.41 eV 3.5 ×10−10 6
357 CH+ + H → C+ + H2 0.46 eV 7.84 ×10−10 (Tgas/300.0)−0.22 6
358 CH+ + CO2 → HCO+ + CO 5.42 eV 1.6 ×10−9 6
359 CH+ + O2 → HCO+ + O 5.76 eV 9.2 ×10−10 6
360 ArH+ + H2 → H + Ar 6.3 ×10−10 6
361 ArH+ + N2 → N2 H+ + Ar 8.0 ×10−10 6
362 ArH+ + O2 → HO + Ar 5.05 ×10−10 6
363 ArH+ + CO → HCO+ + Ar 1.25 ×10−9 6
364 ArH+ + CO2 → OCOH+ + Ar 1.1 ×10−9 6
365 ArH+ + O → OH+ + Ar 5.9 ×10−10 6
366 ArH+ + C → CH+ + Ar - 1.02 ×10−9 6
367 ArH+ + e → Ar + H 1.0 ×10−9 (Tgas/300.0)−0.5 6
368 He+ + CO → C+ + O + He 2.25 eV 1.6 ×10−9 1
369 He+ + CO2 → C+ + O2 + He 1.87 eV 2.0 ×10−11 1
370 He+ + CO2 → CO+ + O + He 5.18 eV 7.8 ×10−10 1
371 He+ + CO2 → O+ + CO + He 5.46 eV 1.4 ×10−10 1
372 He+ + CO2 → CO + He 10.87 eV 5.0 ×10−11 1
373 He+ + O2 → O+ (2 D) + O + He 2.37 ×10−10 1
374 He+ + O2 → O+ + O + He 5.92 eV 2.39 ×10−11 1
375 He+ + O2 → O + He 12.57 eV 9.2 ×10−12 1
376 He+ + O2 → O+ (2 P) + O + He 6.04 ×10−10 1
377 He+ + O2 → O+ + O(1 D) + He 4.6 ×10−11 1
378 He+ + O → O+ + He 1.0 ×10−13 1
379 He+ + N2 → N+ + N + He 0.36 eV 7.8 ×10−10 1
380 He+ + N2 → N + He 9.07 eV 5.2 ×10−10 1
381 He+ + NO → N+ + O + He 3.63 eV 1.35 ×10−9 1
382 He+ + NO → O+ + N + He 4.54 eV 1.0 ×10−10 1
383 He+ + H → HeH+ 4.16 ×10−16 (Tgas/300.0)−0.37 exp(–Tgas/4000.0) 6
384 He+ + H2 → H+ + He + H 6.57 eV 8.3 ×10−14 6
385 He+ + H2 → H + He 1.7 ×10−14 6
386 He+ + H2 → HeH+ + H 4.2 ×10−13 7
387 He+ + H2 → H+ + H + He 6.57 eV 8.8 ×10−14 7
388 He+ + e → He 4.6 ×10−12 (300.0/Tgas)0.64 7
389 He+ + H2O → He + H2O+ 12.00 eV 9.54 ×10−10 (0.62+2.579 (300.0/Tgas)0.5) 2
390 He+ + H2O → H+ + OH + He 5.92 eV 2.04 ×10−10 4
391 He+ + H2O → OH+ + H + He 6.5 eV 2.86 ×10−10 4
392 He+ + OH → O+ + H + He 6.62 eV 1.1 ×10−9 4
393 NH + H → NH+ + H2 2.01 eV 7.6 ×10−10 4
394 NH + H → NH + H 3.84 eV 7.6 ×10−10 4
395 NH + H+ → NH+ + H 0.21 eV 2.1 ×10−9 4
396 NH + H → NH + H2 2.12 eV 1.3 ×10−9 4
397 NH + He+ → N+ + He + H 6.72 eV 1.1 ×10−9 4
398 OCOH+ + O → HCO+ + O2 0.27 eV 5.8 ×10−10 6
399 OCOH+ + C → CH+ + CO2 0.97 eV 1.0 ×10−9 6
400 OCOH+ + CO → HCO+ + CO2 0.62 eV 7.8 ×10−10 6
401 OCOH+ + e → H + O + CO 2.38 ×10−7 (Tgas/300.0)−0.5 6
402 OCOH+ + e → H + CO2 1.75 ×10−8 (Tgas/300.0)−0.5 6
403 OCOH+ + e → OH + CO 9.45 ×10−8 (Tgas/300.0)−0.5 6
404 HeH+ + H2 → H + He 2.56 eV 1.5 ×10−9 7
405 HeH+ + H → H + He 0.91 eV 9.1 ×10−10 7
406 HeH+ + e → He + H 1.0 ×10−8 (300.0/Tgas)0.6 7
407 HNO+ + CO → HCO+ + NO 0.69 eV 8.6 ×10−10 6
408 HNO+ + CO2 → OCOH+ + NO 9.4 ×10−10 6
409 HNO+ + C → CH+ + NO 1.05 eV 1.0 ×10−9 6
410 HNO+ + N2 → N2H+ + NO 3.4 ×10−10 exp(–4900.0/Tgas) 6
411 HNO+ + O → NO + H 1.73 eV 1.0 ×10−12 6
412 HNO+ + e → NO + H 3.0 ×10−7 (Tgas/300.0)−0.5 6
413 NO + e → O + NO 3.0 ×10−7 (Tgas/300.0)−0.5 2
414 HO + CO → HCO+ + O2 1.82 eV 8.4 ×10−10 6
415 HO + CO2 → OCOH+ + O2 1.24 eV 1.1 ×10−9 6
416 HO + NO → HNO+ + O2 1.17 eV 7.5 ×10−10 6
417 HO + N2 → N2 H+ + O2 0.74 eV 8.0 ×10−10 6
418 HO + O → OH+ + O2 0.72 eV 6.2 ×10−10 6
419 HO + N → NO + H 4.23 eV 1.0 ×10−12 6
420 HO + C → CH+ + O2 2.18 eV 1.0 ×10−9 6
421 HO + H2 → H + O2 0.036 eV 3.3 ×10−10 6
422 HO + e → OH + O 1.8 ×10−7 (Tgas/300.0)−0.5 6
423 HO + e → H + O2 6.0 ×10−8 (Tgas/300.0)−0.5 6
424 HO + e → H + O + O 6.0 ×10−8 (Tgas/300.0)−0.5 6
425 CH + O → H + HCO+ 6.27 eV 7.5 ×10−10 2
426 CH + O2 → OH + HCO+ 5.55 eV 9.1 ×10−10 2
427 CH + H → H2 + CH+ –0.02 eV 1.2 ×10−9 exp(–2700.0/Tgas) 2
428 CH + e → C + H2 7.7 ×10−8 (Tgas/300.0)−0.6 2
429 CH + e → C + H + H 4.0 ×10−7 (Tgas/300.0)−0.6 2
430 H3 O+ + e → H + H2 O 1.1 ×10−7 (Tgas/300.0)−0.5 2
431 H3 O+ + e → OH + H2 6.0 ×10−8 (Tgas/300.0)−0.5 2
432 H3 O+ + e → OH + H + H 2.6 ×10−7 (Tgas/300.0)−0.5 2
433 H3 O+ + e → H2 + O + H 5.6 ×10−9 (Tgas/300.0)−0.5 2
434 H3O+ + C → HCO+ + H2 5.10 eV 1.0 ×10−11 4
435 NH + e → N + H + H 1.67 ×10−5 4
436 NH + e → NH + H 8.65 ×10−6 4
437 NH2 + H → NH + H2 4.29 eV 2.1 ×10−9 4
438 NH2 + H+ → NH + H 2.48 eV 2.9 ×10−9 4
439 NH2 + He+ → N+ + He + H2 7.17 eV 8.0 ×10−10 4
440 NH2 + He+ → NH+ + He + H 7.15 eV 8.0 ×10−10 4
Photoreactions:-
441 N + γ → N+ + e 10
442 O2 + γ → O + O(1D) 10
443 O2 + γ → O + O 10
444 O2 + γ → O + e 10
445 O2 + γ → O+ + O + e 10
446 O2 + γ → O+(2P) + O + e 10
447 O2 + γ → O+(2D) + O + e 10
448 O2 + γ → O(1S) + O(1S) 10
449 NO + γ → N + O 10
450 NO + γ → NO+ + e 10
451 NO + γ → O+ + N + e 10
452 NO + γ → N+ + O + e 10
453 O + γ → O+ + e 10
454 O + γ → O+(2P) + e 10
455 O + γ → O+(2D) + e 10
456 N2 + γ → N + N(2D) 10
457 N2 + γ → N + e 10
458 N2 + γ → N+ + N + e 10
459 N2 + γ → N+ + N(2D) + e 10
460 O(1D) + γ → O+ + e 10
461 H2O + γ → H + OH 10
462 H2O + γ → H2 + O(1D) 10
463 H2O + γ → O + H + H 10
464 H2 O + γ → OH+ + H + e 10
465 H2 O + γ → O+ + H2 + e 10
466 H2 O + γ → H+ + OH + e 10
467 H2 O + γ → H2 O+ + e 10
468 O3 + γ → O2 + O(1 D) 10
469 O3 + γ → O2 + O 10
470 O3 + γ → O2 (1 Δg) + O(1D) 10
471 CO + γ → CO+ + e 10
472 CO + γ → C+ + O + e 10
473 CO + γ → O+ + C + e 10
474 CO + γ → C + O 10
475 CO + γ → C + O(1 D) 10
476 CO2 + γ → CO + O 10
477 CO2 + γ → CO + O(1 D) 10
478 CO2 + γ → CO + e 10
479 CO2 + γ → CO+ + O + e 10
480 CO2 + γ → O+ + CO + e 10
481 H2 + γ → H + e 10
482 H2 + γ → H+ + H + e 10
483 H + γ → H+ + e 10
484 H2 O2 + γ → OH + OH 10
485 C + γ → C+ + e 10
486 Ar + γ → Ar+ + e 10
487 He + γ → He+ + e 10
488 O(1 S) + γ → O+ + e 10
489 NO2 + γ → NO + e 10
490 NO2 + γ → NO + O(1D) 10
491 NO2 + γ → NO + O 10
492 NO3 + γ → NO2 + O 10
493 NO3 + γ → NO + O2 10
494 N2O + γ → N2 + O(1S) 10
495 N2O + γ → N2 + O(1D) 10
496 HNO3 + γ → OH + NO2 10
Non-thermal electron reactions:-
497 N2 + e* → N + e + e* 11
498 N2 + e* → N+ + N + e + e* 11
499 He + e* → He+ + e + e* 12
500 O + e* → O+ + e + e* 13
501 O2 + e* → O + e + e* 13
502 CO2 + e* → CO + e + e* 13
503 CO + e* → CO+ + e + e* 13

Notes.The columns give the reaction number, the reaction, the energy released per reaction, the rate coefficient, and a reference for the reaction. For photoreactions and non-thermal electron reactions, the reference is for the necessary cross-sections.

References: 1. Fox & Sung (2001); 2. Wakelam et al. (2012); 3. Verronen et al. (2002); 4. García Muñoz (2007); 5. Tian et al. (2008a); 6. Fox (2015); 7. Yelle (2004); 8. Richards & Voglozin (2011); 9. Rimmer & Helling (2016); 10. Huebner& Mukherjee (2015); 11. Green & Barth (1965); 12. Jusick et al. (1967); 13. Jackman et al. (1977).

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