C2H2
Acetylene
Flags: Detected, RATE12
Empirical: C2H2
Mass: 26 amu
Heat of formation: 228.6 kJ mol-1
Added to system: 2003-04-28 18:00:51
Reactions: Formation | Destruction
132 C2H2 formation reactions
Reaction | α | β | γ | Tl - Tu (K) | |
---|---|---|---|---|---|
1 | C- + CH2 → C2H2 + e- | 5.00e-10 | 0.00 | 0.00 | 10 - 41000 |
2 | H- + C2H → C2H2 + e- | 1.00e-9 | 0.00 | 0.00 | 10 - 41000 |
3 | H + C2H- → C2H2 + e- | 1.60e-9 | 0.00 | 0.00 | 10 - 300 |
4 | C2H2+ + C2H3 → C2H3+ + C2H2 | 3.30e-10 | -0.50 | 0.00 | 10 - 300 |
5 | C2H2+ + C2H4 → C2H4+ + C2H2 | 4.14e-10 | 0.00 | 0.00 | 10 - 41000 |
6 | C2H2+ + C5H2 → C5H2+ + C2H2 | 1.00e-9 | -0.50 | 0.00 | 10 - 300 |
7 | C2H2+ + C6H2 → C6H2+ + C2H2 | 5.00e-10 | -0.50 | 0.00 | 10 - 300 |
8 | C2H2+ + C7H2 → C7H2+ + C2H2 | 1.00e-9 | -0.50 | 0.00 | 10 - 300 |
9 | C2H2+ + CH2CCH → C3H3+ + C2H2 | 1.00e-9 | -0.50 | 0.00 | 10 - 41000 |
10 | C2H2+ + CH3CCH → C3H4+ + C2H2 | 5.00e-10 | 0.00 | 0.00 | 10 - 300 |
11 | C2H2+ + Fe → Fe+ + C2H2 | 2.00e-9 | 0.00 | 0.00 | 10 - 41000 |
12 | C2H2+ + H2CO → H2CO+ + C2H2 | 8.60e-10 | -0.50 | 0.00 | 10 - 41000 |
13 | C2H2+ + H2S → H2S+ + C2H2 | 2.20e-9 | -0.50 | 0.00 | 10 - 41000 |
14 | C2H2+ + HC4H → C4H2+ + C2H2 | 1.26e-9 | 0.00 | 0.00 | 10 - 300 |
15 | C2H2+ + HCO → HCO+ + C2H2 | 5.00e-10 | -0.50 | 0.00 | 10 - 41000 |
16 | C2H2+ + NO → NO+ + C2H2 | 1.20e-10 | 0.00 | 0.00 | 10 - 41000 |
17 | C2H2 + CH2CCH+ → C3H3+ + C2H2 | 2.50e-10 | 0.00 | 0.00 | 10 - 41000 |
18 | Mg + C2H2+ → C2H2 + Mg+ | 3.00e-9 | 0.00 | 0.00 | 10 - 41000 |
19 | NH3 + C2H2+ → C2H2 + NH3+ | 2.14e-9 | -0.50 | 0.00 | 10 - 41000 |
20 | Na + C2H2+ → C2H2 + Na+ | 2.70e-9 | 0.00 | 0.00 | 10 - 41000 |
21 | C2H3 + CRPHOT → C2H2 + H | 1.30e-17 | 0.00 | 1500.00 | 10 - 41000 |
22 | C2H4 + CRPHOT → C2H2 + H2 | 1.30e-17 | 0.00 | 1881.00 | 10 - 41000 |
23 | C2H3+ + e- → C2H2 + H | 1.45e-7 | -0.84 | 0.00 | 50 - 1000 |
24 | C2H3+ + e- → C2H2 + H | 2.78e-7 | -1.38 | 0.00 | 1000 - 30000 |
25 | C2H4+ + e- → C2H2 + H2 | 3.36e-8 | -0.76 | 0.00 | 10 - 300 |
26 | C2H4+ + e- → C2H2 + H + H | 3.70e-7 | -0.76 | 0.00 | 10 - 300 |
27 | C2H5+ + e- → C2H2 + H2 + H | 8.12e-8 | -0.79 | 0.00 | 10 - 300 |
28 | C2H5+ + e- → C2H2 + H + H + H | 3.64e-8 | -0.79 | 0.00 | 10 - 300 |
29 | C3H2+ + e- → C2H2 + C | 3.00e-8 | -0.50 | 0.00 | 10 - 300 |
30 | C3H2O+ + e- → CO + C2H2 | 1.50e-7 | -0.50 | 0.00 | 10 - 300 |
31 | C3H7+ + e- → C2H2 + CH3 + H2 | 2.53e-8 | -0.73 | 0.00 | 10 - 300 |
32 | CH2CCH+ + e- → C2H2 + CH | 5.00e-8 | -0.50 | 0.00 | 10 - 300 |
33 | CH2CHCNH+ + e- → C2H2 + HCN + H | 4.45e-7 | -0.80 | 0.00 | 10 - 1000 |
34 | CH2CO+ + e- → C2H2 + O | 2.00e-7 | -0.50 | 0.00 | 10 - 300 |
35 | HC3NH+ + e- → C2H2 + CN | 7.20e-7 | -0.58 | 0.00 | 10 - 300 |
36 | PC2H2+ + e- → P + C2H2 | 1.00e-7 | -0.50 | 0.00 | 10 - 300 |
37 | PC2H3+ + e- → PH + C2H2 | 1.00e-7 | -0.50 | 0.00 | 10 - 300 |
38 | C+ + CH2CCH2 → C2H2+ + C2H2 | 2.80e-10 | 0.00 | 0.00 | 10 - 41000 |
39 | C+ + CH3CCH → C2H2+ + C2H2 | 1.90e-10 | 0.00 | 0.00 | 10 - 41000 |
40 | C2H3+ + C2H4 → C2H5+ + C2H2 | 8.90e-10 | 0.00 | 0.00 | 10 - 41000 |
41 | C2H3+ + C3H2 → C3H3+ + C2H2 | 8.00e-10 | -0.50 | 0.00 | 10 - 41000 |
42 | C2H3+ + C3H → C3H2+ + C2H2 | 1.00e-9 | -0.50 | 0.00 | 10 - 41000 |
43 | C2H3+ + C4H → C4H2+ + C2H2 | 4.00e-10 | -0.50 | 0.00 | 10 - 41000 |
44 | C2H3+ + C5H2 → C5H3+ + C2H2 | 8.00e-10 | -0.50 | 0.00 | 10 - 41000 |
45 | C2H3+ + C5H → C5H2+ + C2H2 | 1.00e-9 | -0.50 | 0.00 | 10 - 41000 |
46 | C2H3+ + C6H2 → C6H3+ + C2H2 | 3.00e-10 | -0.50 | 0.00 | 10 - 41000 |
47 | C2H3+ + C6H6 → C6H7+ + C2H2 | 1.60e-9 | 0.00 | 0.00 | 10 - 41000 |
48 | C2H3+ + C6H → C6H2+ + C2H2 | 5.00e-10 | -0.50 | 0.00 | 10 - 41000 |
49 | C2H3+ + C7H2 → C7H3+ + C2H2 | 8.00e-10 | -0.50 | 0.00 | 10 - 41000 |
50 | C2H3+ + C7H → C7H2+ + C2H2 | 1.10e-9 | -0.50 | 0.00 | 10 - 41000 |
51 | C2H3+ + CH2CCH → C3H4+ + C2H2 | 1.00e-9 | -0.50 | 0.00 | 10 - 41000 |
52 | C2H3+ + CH3CCH → C3H5+ + C2H2 | 5.00e-10 | 0.00 | 0.00 | 10 - 41000 |
53 | C2H3+ + H2CCC → CH2CCH+ + C2H2 | 8.00e-10 | -0.50 | 0.00 | 10 - 41000 |
54 | C2H3+ + H2S → H3S+ + C2H2 | 8.40e-10 | -0.50 | 0.00 | 10 - 41000 |
55 | C2H3+ + HC3N → HC3NH+ + C2H2 | 3.80e-9 | -0.50 | 0.00 | 10 - 41000 |
56 | C2H3+ + HC4H → C4H3+ + C2H2 | 3.00e-10 | 0.00 | 0.00 | 10 - 41000 |
57 | C2H3+ + NCCN → NCCNH+ + C2H2 | 1.10e-9 | 0.00 | 0.00 | 10 - 41000 |
58 | C2H3 + C2H4+ → C2H5+ + C2H2 | 5.00e-10 | -0.50 | 0.00 | 10 - 41000 |
59 | C2H4 + C3+ → C3H2+ + C2H2 | 1.35e-10 | 0.00 | 0.00 | 10 - 41000 |
60 | C2H4 + C3H+ → CH2CCH+ + C2H2 | 9.00e-10 | 0.00 | 0.00 | 10 - 41000 |
61 | C2H4 + C3H2+ → C3H4+ + C2H2 | 6.60e-10 | 0.00 | 0.00 | 10 - 41000 |
62 | C2H4 + C4H+ → C4H3+ + C2H2 | 7.50e-10 | 0.00 | 0.00 | 10 - 41000 |
63 | C2H4 + C5+ → C5H2+ + C2H2 | 5.10e-10 | 0.00 | 0.00 | 10 - 41000 |
64 | C2H4 + C6H5+ → C6H7+ + C2H2 | 8.50e-11 | 0.00 | 0.00 | 10 - 41000 |
65 | C2H + C2H3+ → C2H2+ + C2H2 | 3.30e-10 | 0.00 | 0.00 | 10 - 300 |
66 | C3H+ + HC4H → C5H+ + C2H2 | 1.20e-10 | 0.00 | 0.00 | 10 - 41000 |
67 | C3H2+ + CH2CCH2 → C4H4+ + C2H2 | 7.00e-10 | 0.00 | 0.00 | 10 - 41000 |
68 | C3H2+ + CH3CCH → C4H4+ + C2H2 | 5.33e-10 | 0.00 | 0.00 | 10 - 41000 |
69 | C3H3+ + HC4H → C5H3+ + C2H2 | 1.06e-9 | 0.00 | 0.00 | 10 - 41000 |
70 | C4H2+ + HC4H → C6H2+ + C2H2 | 1.30e-10 | 0.00 | 0.00 | 10 - 41000 |
71 | C + SiCH2+ → Si+ + C2H2 | 1.00e-9 | 0.00 | 0.00 | 10 - 41000 |
72 | CH2CCH+ + HC4H → C5H3+ + C2H2 | 1.06e-9 | 0.00 | 0.00 | 10 - 41000 |
73 | CH3+ + HC4H → CH2CCH+ + C2H2 | 1.27e-9 | 0.00 | 0.00 | 10 - 41000 |
74 | CH3CCH + C4H2+ → CH3C4H+ + C2H2 | 1.40e-10 | 0.00 | 0.00 | 10 - 41000 |
75 | CH4 + C3H+ → C2H3+ + C2H2 | 7.83e-10 | 0.00 | 0.00 | 10 - 41000 |
76 | CH4 + C4+ → C3H2+ + C2H2 | 1.56e-10 | 0.00 | 0.00 | 10 - 41000 |
77 | CH4 + C4N+ → HC3NH+ + C2H2 | 2.00e-10 | 0.00 | 0.00 | 10 - 41000 |
78 | CH4 + C5+ → C4H2+ + C2H2 | 2.64e-10 | 0.00 | 0.00 | 10 - 41000 |
79 | CH4 + C6+ → C5H2+ + C2H2 | 2.32e-10 | 0.00 | 0.00 | 10 - 41000 |
80 | H2O + C2H3+ → C2H2 + H3O+ | 1.11e-9 | -0.50 | 0.00 | 10 - 41000 |
81 | H2O + C3H+ → HCO+ + C2H2 | 2.48e-10 | -0.50 | 0.00 | 10 - 41000 |
82 | H2S + C3H+ → HCS+ + C2H2 | 7.56e-10 | -0.50 | 0.00 | 10 - 41000 |
83 | HC4H + C4H3+ → C6H3+ + C2H2 | 1.00e-10 | 0.00 | 0.00 | 10 - 41000 |
84 | HC4H + C4H4+ → C6H4+ + C2H2 | 7.00e-10 | 0.00 | 0.00 | 10 - 41000 |
85 | HCN + C2H3+ → HCNH+ + C2H2 | 2.90e-9 | -0.50 | 0.00 | 10 - 41000 |
86 | HNC + C2H3+ → HCNH+ + C2H2 | 2.90e-9 | -0.50 | 0.00 | 10 - 41000 |
87 | NH3 + C2H3+ → C2H2 + NH4+ | 2.50e-9 | -0.50 | 0.00 | 10 - 41000 |
88 | NH3 + C3H+ → H2NC+ + C2H2 | 4.80e-10 | -0.50 | 0.00 | 10 - 41000 |
89 | O + C3H3+ → HCO+ + C2H2 | 2.00e-10 | 0.00 | 0.00 | 10 - 41000 |
90 | O + CH2CCH+ → HCO+ + C2H2 | 2.00e-10 | 0.00 | 0.00 | 10 - 41000 |
91 | Si+ + CH3CCH → SiCH2+ + C2H2 | 1.80e-10 | 0.00 | 0.00 | 10 - 41000 |
92 | C- + C2H2+ → C + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
93 | C10- + C2H2+ → C10 + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
94 | C10H- + C2H2+ → C10H + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
95 | C2- + C2H2+ → C2 + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
96 | C2H- + C2H2+ → C2H + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
97 | C3- + C2H2+ → C3 + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
98 | C3H- + C2H2+ → C3H + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
99 | C3N- + C2H2+ → C3N + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
100 | C4- + C2H2+ → C4 + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
101 | C4H- + C2H2+ → C4H + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
102 | C5- + C2H2+ → C5 + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
103 | C5H- + C2H2+ → C5H + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
104 | C5N- + C2H2+ → C5N + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
105 | C6- + C2H2+ → C6 + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
106 | C6H- + C2H2+ → C6H + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
107 | C7- + C2H2+ → C7 + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
108 | C7H- + C2H2+ → C7H + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
109 | C8- + C2H2+ → C8 + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
110 | C8H- + C2H2+ → C8H + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
111 | C9- + C2H2+ → C9 + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
112 | C9H- + C2H2+ → C9H + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
113 | CH- + C2H2+ → CH + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
114 | CN- + C2H2+ → CN + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
115 | H- + C2H2+ → H + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
116 | O- + C2H2+ → O + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
117 | O2- + C2H2+ → O2 + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
118 | OH- + C2H2+ → OH + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
119 | S- + C2H2+ → S + C2H2 | 7.51e-8 | -0.50 | 0.00 | 10 - 41000 |
120 | C2H3 + O2 → O2H + C2H2 | 3.15e-14 | 1.45 | -52.00 | 300 - 3500 |
121 | C + CH3 → C2H2 + H | 1.00e-10 | 0.00 | 0.00 | 10 - 300 |
122 | CH2 + CH2 → C2H2 + H2 | 2.63e-9 | 0.00 | 6013.00 | 1100 - 2720 |
123 | CH2 + CH2 → C2H2 + H + H | 1.80e-10 | 0.00 | 400.00 | 300 - 3000 |
124 | CH3 + C2H3 → C2H2 + CH4 | 1.70e-10 | -1.50 | 300.00 | 300 - 900 |
125 | H2 + C2H → C2H2 + H | 9.11e-13 | 2.57 | 130.00 | 220 - 2200 |
126 | H + C2H3 → C2H2 + H2 | 3.32e-11 | 0.00 | 0.00 | 300 - 2500 |
127 | N + C2H3 → C2H2 + NH | 1.20e-11 | 0.00 | 0.00 | 10 - 300 |
128 | O + H2CCC → CO + C2H2 | 5.00e-11 | 0.50 | 0.00 | 10 - 300 |
129 | OH + C2H3 → C2H2 + H2O | 5.00e-11 | 0.00 | 0.00 | 10 - 2500 |
130 | C2H3 + PHOTON → C2H2 + H | 1.00e-9 | 0.00 | 1.70 | 10 - 41000 |
131 | C2H4 + PHOTON → C2H2 + H2 | 3.00e-9 | 0.00 | 2.10 | 10 - 41000 |
132 | C6H6 + PHOTON → C2H2 + CH2CHCCH | 1.00e-11 | 0.00 | 1.70 | 10 - 41000 |
Variation of log fractional abundance (relative to H2) with log time (years) in a dark cloud model. Ref. RATE12 paper.