C₂

Dicarbide
Flags: Detected, RATE12
Empirical: C₂
Mass: 24 amu
Heat of formation: 817.0 kJ mol^-1
Added to system: 2003-04-28 18:00:51

Reactions: Formation | Destruction

165 C₂ formation reactions

	Reaction	α	β	γ	T_l - T_u (K)
1	C^- + C → C₂ + e^-	5.00e-10	0.00	0.00	10 - 41000
2	C₂⁺ + HCO → HCO⁺ + C₂	3.80e-10	-0.50	0.00	10 - 41000
3	C₂⁺ + NO → NO⁺ + C₂	3.40e-10	0.00	0.00	10 - 41000
4	C₂⁺ + S → S⁺ + C₂	5.80e-10	0.00	0.00	10 - 41000
5	C + C₂⁺ → C₂ + C⁺	1.10e-10	0.00	0.00	10 - 41000
6	CH₂ + C₂⁺ → C₂ + CH₂⁺	4.50e-10	0.00	0.00	10 - 41000
7	CH + C₂⁺ → C₂ + CH⁺	3.20e-10	-0.50	0.00	10 - 41000
8	NH₂ + C₂⁺ → C₂ + NH₂⁺	4.60e-10	-0.50	0.00	10 - 41000
9	OH + C₂⁺ → C₂ + OH⁺	6.50e-10	-0.50	0.00	10 - 41000
10	C₂^- + CRPHOT → C₂ + e^-	1.30e-17	0.00	250.00	10 - 41000
11	C₂H + CRPHOT → C₂ + H	1.30e-17	0.00	2500.00	10 - 41000
12	C₂N + CRPHOT → C₂ + N	1.30e-17	0.00	500.00	10 - 41000
13	C₂O + CRPHOT → C₂ + O	1.30e-17	0.00	375.00	10 - 41000
14	C₂S + CRPHOT → S + C₂	1.30e-17	0.00	750.00	10 - 41000
15	C₃ + CRPHOT → C₂ + C	1.30e-17	0.00	559.50	10 - 41000
16	C₃N + CRPHOT → CN + C₂	1.30e-17	0.00	875.00	10 - 41000
17	C₃O + CRPHOT → CO + C₂	1.30e-17	0.00	3304.50	10 - 41000
18	C₃S + CRPHOT → CS + C₂	1.30e-17	0.00	750.00	10 - 41000
19	C₄ + CRPHOT → C₂ + C₂	1.30e-17	0.00	500.00	10 - 41000
20	C₄ + CRPHOT → C₂ + C₂	1.30e-17	0.00	500.00	10 - 41000
21	C₄H + CRPHOT → C₂H + C₂	1.30e-17	0.00	2500.00	10 - 41000
22	C₅ + CRPHOT → C₃ + C₂	1.30e-17	0.00	500.00	10 - 41000
23	C₅H + CRPHOT → C₃H + C₂	1.30e-17	0.00	2500.00	10 - 41000
24	CCP + CRPHOT → C₂ + P	1.30e-17	0.00	375.00	10 - 41000
25	SiC₄ + CRPHOT → SiC₂ + C₂	1.30e-17	0.00	750.00	10 - 41000
26	C₁₀⁺ + e^- → C₈ + C₂	1.00e-6	-0.30	0.00	10 - 300
27	C₁₁⁺ + e^- → C₉ + C₂	6.76e-7	-0.30	0.00	10 - 41000
28	C₂H⁺ + e^- → C₂ + H	1.16e-7	-0.76	0.00	10 - 300
29	C₂H₂⁺ + e^- → C₂ + H + H	9.00e-8	-0.50	0.00	10 - 300
30	C₂H₃⁺ + e^- → C₂ + H + H₂	1.50e-8	-0.84	0.00	50 - 1000
31	C₂H₃⁺ + e^- → C₂ + H + H₂	2.87e-8	-1.38	0.00	1000 - 30000
32	C₂N⁺ + e^- → C₂ + N	1.50e-7	-0.50	0.00	10 - 300
33	C₂S⁺ + e^- → S + C₂	1.50e-7	-0.50	0.00	10 - 300
34	C₃⁺ + e^- → C₂ + C	3.00e-7	-0.50	0.00	10 - 300
35	C₃H₂⁺ + e^- → C₂ + CH₂	3.00e-8	-0.50	0.00	10 - 300
36	C₃N⁺ + e^- → CN + C₂	3.00e-7	-0.50	0.00	10 - 300
37	C₃O⁺ + e^- → CO + C₂	3.00e-7	-0.50	0.00	10 - 300
38	C₃S⁺ + e^- → CS + C₂	1.00e-7	-0.50	0.00	10 - 300
39	C₄⁺ + e^- → C₂ + C₂	1.20e-7	-0.50	0.00	10 - 300
40	C₄⁺ + e^- → C₂ + C₂	1.20e-7	-0.50	0.00	10 - 300
41	C₄N⁺ + e^- → C₂N + C₂	1.50e-7	-0.50	0.00	10 - 300
42	C₄P⁺ + e^- → CCP + C₂	1.50e-7	-0.50	0.00	10 - 300
43	C₄S⁺ + e^- → C₂S + C₂	1.00e-7	-0.50	0.00	10 - 300
44	C₅⁺ + e^- → C₃ + C₂	3.00e-7	-0.50	0.00	10 - 300
45	C₅N⁺ + e^- → C₃N + C₂	3.00e-7	-0.50	0.00	10 - 300
46	C₆⁺ + e^- → C₄ + C₂	1.00e-6	-0.30	0.00	10 - 300
47	C₇⁺ + e^- → C₅ + C₂	1.00e-6	-0.30	0.00	10 - 300
48	C₇N⁺ + e^- → C₅N + C₂	3.00e-7	-0.50	0.00	10 - 300
49	C₈⁺ + e^- → C₆ + C₂	1.00e-6	-0.30	0.00	10 - 300
50	C₉⁺ + e^- → C₇ + C₂	1.00e-6	-0.30	0.00	10 - 300
51	C₉N⁺ + e^- → C₇N + C₂	3.00e-7	-0.50	0.00	10 - 300
52	CCP⁺ + e^- → P + C₂	1.50e-7	-0.50	0.00	10 - 300
53	CH₂CO⁺ + e^- → C₂ + H₂O	2.00e-7	-0.50	0.00	10 - 300
54	CNC⁺ + e^- → C₂ + N	2.00e-8	-0.60	0.00	10 - 300
55	HC₃N⁺ + e^- → HCN + C₂	3.60e-7	-0.60	0.00	10 - 300
56	SiC₂⁺ + e^- → Si + C₂	1.50e-7	-0.50	0.00	10 - 300
57	SiC₃⁺ + e^- → SiC + C₂	1.50e-7	-0.50	0.00	10 - 300
58	SiC₄⁺ + e^- → SiC₂ + C₂	1.50e-7	-0.50	0.00	10 - 300
59	C⁺ + C₁₀H → C₉H⁺ + C₂	2.30e-10	-0.50	0.00	10 - 41000
60	C⁺ + CCP → CP⁺ + C₂	5.00e-10	-0.50	0.00	10 - 41000
61	C⁺ + SiC → Si⁺ + C₂	2.50e-9	-0.50	0.00	10 - 41000
62	C₂H⁺ + H₂CO → H₃CO⁺ + C₂	1.10e-9	-0.50	0.00	10 - 41000
63	C₂H⁺ + HC₃N → HC₃NH⁺ + C₂	1.41e-9	-0.50	0.00	10 - 41000
64	C₂H⁺ + HCN → HCNH⁺ + C₂	1.40e-9	-0.50	0.00	10 - 41000
65	C₂H⁺ + HNC → HCNH⁺ + C₂	1.40e-9	-0.50	0.00	10 - 41000
66	C₂H + CO⁺ → HCO⁺ + C₂	3.90e-10	0.00	0.00	10 - 41000
67	CH₂ + C₂H⁺ → C₂ + CH₃⁺	4.40e-10	0.00	0.00	10 - 41000
68	CH + C₂H⁺ → C₂ + CH₂⁺	3.20e-10	-0.50	0.00	10 - 41000
69	He⁺ + C₁₀ → C₈⁺ + C₂ + He	1.82e-10	0.00	0.00	10 - 41000
70	He⁺ + C₁₀H → C₅H⁺ + C₃ + C₂ + He	3.75e-10	-0.50	0.00	10 - 41000
71	He⁺ + C₁₀H → C₇H⁺ + C₂ + C + He	4.80e-10	-0.50	0.00	10 - 41000
72	He⁺ + C₂S → S⁺ + C₂ + He	2.50e-10	-0.50	0.00	10 - 41000
73	He⁺ + C₃ → C₂ + C⁺ + He	2.00e-9	0.00	0.00	10 - 41000
74	He⁺ + C₃S → CS⁺ + C₂ + He	5.00e-10	-0.50	0.00	10 - 41000
75	He⁺ + C₄ → C₂⁺ + C₂ + He	6.70e-10	0.00	0.00	10 - 41000
76	He⁺ + C₄H → C₂H⁺ + C₂ + He	1.00e-9	-0.50	0.00	10 - 41000
77	He⁺ + C₄P → CCP⁺ + C₂ + He	5.00e-10	-0.50	0.00	10 - 41000
78	He⁺ + C₅ → C₃⁺ + C₂ + He	1.00e-9	0.00	0.00	10 - 41000
79	He⁺ + C₅H → C₃H⁺ + C₂ + He	1.50e-9	-0.50	0.00	10 - 41000
80	He⁺ + C₆ → C₄⁺ + C₂ + He	1.40e-9	0.00	0.00	10 - 41000
81	He⁺ + C₆H → C₄H⁺ + C₂ + He	1.40e-9	-0.50	0.00	10 - 41000
82	He⁺ + C₇ → C₅⁺ + C₂ + He	1.40e-9	0.00	0.00	10 - 41000
83	He⁺ + C₇H → C₅H⁺ + C₂ + He	2.00e-9	-0.50	0.00	10 - 41000
84	He⁺ + C₈ → C₆⁺ + C₂ + He	1.50e-9	0.00	0.00	10 - 41000
85	He⁺ + C₈H → C₆H⁺ + C₂ + He	1.50e-9	-0.50	0.00	10 - 41000
86	He⁺ + C₉ → C₇⁺ + C₂ + He	1.50e-9	0.00	0.00	10 - 41000
87	He⁺ + C₉H → C₇H⁺ + C₂ + He	2.50e-9	-0.50	0.00	10 - 41000
88	He⁺ + CCP → P⁺ + C₂ + He	5.00e-10	-0.50	0.00	10 - 41000
89	He⁺ + SiC₂ → Si⁺ + C₂ + He	2.00e-9	-0.50	0.00	10 - 41000
90	N + C₃^- → CN^- + C₂	5.00e-11	0.00	0.00	10 - 41000
91	N + C₃H₂⁺ → HCNH⁺ + C₂	6.60e-12	0.00	0.00	10 - 41000
92	N + C₅^- → C₃N^- + C₂	2.30e-11	0.00	0.00	10 - 41000
93	N + C₇^- → C₅N^- + C₂	1.65e-11	0.00	0.00	10 - 41000
94	NH₂ + C₂H⁺ → C₂ + NH₃⁺	4.60e-10	-0.50	0.00	10 - 41000
95	NH₃ + C₂H⁺ → C₂ + NH₄⁺	5.50e-10	-0.50	0.00	10 - 41000
96	C₂^- + C⁺ → C + C₂	7.51e-8	-0.50	0.00	10 - 41000
97	C₂^- + C₂H₂⁺ → C₂ + C₂H₂	7.51e-8	-0.50	0.00	10 - 41000
98	C₂^- + C₂H₃⁺ → C₂ + C₂H₃	7.51e-8	-0.50	0.00	10 - 41000
99	C₂^- + C₄H₂⁺ → C₂ + HC₄H	7.51e-8	-0.50	0.00	10 - 41000
100	C₂^- + C₄H₃⁺ → C₂ + C₄H₃	7.51e-8	-0.50	0.00	10 - 41000
101	C₂^- + C₄S⁺ → C₂ + C₄S	7.51e-8	-0.50	0.00	10 - 41000
102	C₂^- + CH₂CCH⁺ → C₂ + CH₂CCH	7.51e-8	-0.50	0.00	10 - 41000
103	C₂^- + CH₃⁺ → C₂ + CH₃	7.51e-8	-0.50	0.00	10 - 41000
104	C₂^- + CNC⁺ → C₂ + C₂N	7.51e-8	-0.50	0.00	10 - 41000
105	C₂^- + Fe⁺ → C₂ + Fe	7.51e-8	-0.50	0.00	10 - 41000
106	C₂^- + H⁺ → C₂ + H	7.51e-8	-0.50	0.00	10 - 41000
107	C₂^- + H₂CO⁺ → C₂ + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
108	C₂^- + H₂S⁺ → C₂ + H₂S	7.51e-8	-0.50	0.00	10 - 41000
109	C₂^- + H₃⁺ → C₂ + H₂ + H	7.51e-8	-0.50	0.00	10 - 41000
110	C₂^- + H₃O⁺ → C₂ + H + H₂O	7.51e-8	-0.50	0.00	10 - 41000
111	C₂^- + HC₂S⁺ → C₂ + C₂S + H	7.51e-8	-0.50	0.00	10 - 41000
112	C₂^- + HCNH⁺ → C₂ + HCN + H	3.76e-8	-0.50	0.00	10 - 41000
113	C₂^- + HCNH⁺ → C₂ + HNC + H	3.76e-8	-0.50	0.00	10 - 41000
114	C₂^- + HCO⁺ → C₂ + H + CO	3.76e-8	-0.50	0.00	10 - 41000
115	C₂^- + HCO⁺ → C₂ + HCO	3.76e-8	-0.50	0.00	10 - 41000
116	C₂^- + He⁺ → C₂ + He	7.51e-8	-0.50	0.00	10 - 41000
117	C₂^- + Mg⁺ → C₂ + Mg	7.51e-8	-0.50	0.00	10 - 41000
118	C₂^- + N⁺ → C₂ + N	7.51e-8	-0.50	0.00	10 - 41000
119	C₂^- + N₂H⁺ → C₂ + N₂ + H	7.51e-8	-0.50	0.00	10 - 41000
120	C₂^- + NH₃⁺ → C₂ + NH₃	7.51e-8	-0.50	0.00	10 - 41000
121	C₂^- + NH₄⁺ → C₂ + NH₃ + H	7.51e-8	-0.50	0.00	10 - 41000
122	C₂^- + NO⁺ → C₂ + NO	7.51e-8	-0.50	0.00	10 - 41000
123	C₂^- + Na⁺ → C₂ + Na	7.51e-8	-0.50	0.00	10 - 41000
124	C₂^- + O⁺ → C₂ + O	7.51e-8	-0.50	0.00	10 - 41000
125	C₂^- + S⁺ → C₂ + S	7.51e-8	-0.50	0.00	10 - 41000
126	C₂^- + SO⁺ → C₂ + SO	7.51e-8	-0.50	0.00	10 - 41000
127	C₂^- + Si⁺ → C₂ + Si	7.51e-8	-0.50	0.00	10 - 41000
128	C₂^- + SiO⁺ → C₂ + SiO	7.51e-8	-0.50	0.00	10 - 41000
129	C₂^- + SiOH⁺ → C₂ + SiO + H	7.51e-8	-0.50	0.00	10 - 41000
130	C₂^- + SiS⁺ → C₂ + SiS	7.51e-8	-0.50	0.00	10 - 41000
131	C + C₂N → C₂ + CN	1.00e-10	0.00	0.00	10 - 300
132	C + C₂O → C₂ + CO	2.00e-10	0.00	0.00	10 - 300
133	C + C₄ → C₂ + C₃	9.00e-11	0.00	0.00	10 - 300
134	C + C₆ → C₂ + C₅	5.00e-11	0.00	0.00	10 - 300
135	C + C₈ → C₂ + C₇	1.00e-13	0.00	0.00	10 - 300
136	C + CH → C₂ + H	6.59e-11	0.00	0.00	10 - 300
137	C + CN → C₂ + N	4.98e-10	0.00	18116.00	603 - 41000
138	C + CO → C₂ + O	2.94e-11	0.50	58025.00	1934 - 41000
139	C + CS → S + C₂	1.44e-11	0.50	20435.00	681 - 41000
140	CN + CN → N₂ + C₂	2.66e-9	0.00	21638.00	3800 - 7000
141	N + C₃ → CN + C₂	1.00e-13	0.00	0.00	10 - 300
142	O + C₃ → CO + C₂	5.00e-12	0.00	900.00	10 - 300
143	C₁₀ + PHOTON → C₇ + C₂ + C	3.46e-12	0.00	5.10	10 - 41000
144	C₁₀ + PHOTON → C₈ + C₂	1.96e-10	0.00	3.00	10 - 41000
145	C₁₀H + PHOTON → C₈ + C₂ + H	1.42e-12	0.00	5.00	10 - 41000
146	C₁₁ + PHOTON → C₉ + C₂	2.86e-10	0.00	2.80	10 - 41000
147	C₂^- + PHOTON → C₂ + e^-	2.96e-9	0.00	2.00	10 - 41000
148	C₂H + PHOTON → C₂ + H	5.20e-10	0.00	2.30	10 - 41000
149	C₂N + PHOTON → C₂ + N	5.00e-10	0.00	1.70	10 - 41000
150	C₂O + PHOTON → C₂ + O	5.00e-10	0.00	1.70	10 - 41000
151	C₂S + PHOTON → S + C₂	1.00e-10	0.00	2.00	10 - 41000
152	C₃ + PHOTON → C₂ + C	5.00e-9	0.00	2.10	10 - 41000
153	C₃N + PHOTON → CN + C₂	5.00e-10	0.00	1.80	10 - 41000
154	C₃O + PHOTON → CO + C₂	7.00e-9	0.00	1.60	10 - 41000
155	C₃P + PHOTON → C₂ + CP	5.00e-10	0.00	1.80	10 - 41000
156	C₃S + PHOTON → CS + C₂	1.00e-10	0.00	2.00	10 - 41000
157	C₄ + PHOTON → C₂ + C₂	4.25e-9	0.00	1.90	10 - 41000
158	C₄ + PHOTON → C₂ + C₂	4.25e-9	0.00	1.90	10 - 41000
159	C₄H + PHOTON → C₂H + C₂	1.85e-9	0.00	2.00	10 - 41000
160	C₅ + PHOTON → C₃ + C₂	1.00e-11	0.00	1.70	10 - 41000
161	C₅H + PHOTON → C₃H + C₂	4.33e-10	0.00	1.40	10 - 41000
162	CCP + PHOTON → C₂ + P	1.00e-10	0.00	1.70	10 - 41000
163	SiC₂ + PHOTON → C₂ + Si	2.60e-10	0.00	2.30	10 - 41000
164	SiC₃ + PHOTON → C₂ + SiC	2.00e-10	0.00	2.30	10 - 41000
165	C + C → C₂ + PHOTON	4.36e-18	0.35	161.30	10 - 41000

	Reaction	α	β	γ	T_l - T_u (K)
1	C₂^- + C₂ → C₄ + e^-	1.00e-9	0.00	0.00	10 - 300
2	C₄^- + C₂ → C₆ + e^-	1.00e-9	0.00	0.00	10 - 300
3	C₅^- + C₂ → C₇ + e^-	1.00e-9	0.00	0.00	10 - 300
4	C₆^- + C₂ → C₈ + e^-	1.00e-9	0.00	0.00	10 - 300
5	C₇^- + C₂ → C₉ + e^-	1.00e-9	0.00	0.00	10 - 300
6	C₈^- + C₂ → C₁₀ + e^-	1.00e-9	0.00	0.00	10 - 300
7	H^- + C₂ → C₂H + e^-	1.00e-9	0.00	0.00	10 - 41000
8	C₂ + CN⁺ → CN + C₂⁺	8.50e-10	0.00	0.00	10 - 41000
9	C₂ + CO⁺ → CO + C₂⁺	8.40e-10	0.00	0.00	10 - 41000
10	C₂ + N₂⁺ → N₂ + C₂⁺	8.40e-10	0.00	0.00	10 - 41000
11	C₂ + O₂⁺ → O₂ + C₂⁺	4.10e-10	0.00	0.00	10 - 41000
12	H⁺ + C₂ → C₂⁺ + H	3.10e-9	0.00	0.00	10 - 41000
13	H₂⁺ + C₂ → C₂⁺ + H₂	1.10e-9	0.00	0.00	10 - 41000
14	H₂O⁺ + C₂ → C₂⁺ + H₂O	4.70e-10	0.00	0.00	10 - 41000
15	He⁺ + C₂ → C₂⁺ + He	5.00e-10	0.00	0.00	10 - 41000
16	N⁺ + C₂ → C₂⁺ + N	1.00e-9	0.00	0.00	10 - 41000
17	O⁺ + C₂ → C₂⁺ + O	4.80e-10	0.00	0.00	10 - 41000
18	OH⁺ + C₂ → C₂⁺ + OH	4.80e-10	0.00	0.00	10 - 41000
19	C₂ + CRPHOT → C + C	1.30e-17	0.00	119.50	10 - 41000
20	C₂⁺ + C₂ → C₃⁺ + C	8.70e-10	0.00	0.00	10 - 41000
21	C₂ + H₂CO⁺ → HCO + C₂H⁺	8.20e-10	0.00	0.00	10 - 41000
22	C₂ + HCN⁺ → CN + C₂H⁺	8.40e-10	0.00	0.00	10 - 41000
23	C₂ + HCO⁺ → CO + C₂H⁺	8.30e-10	0.00	0.00	10 - 41000
24	C₂ + HNO⁺ → NO + C₂H⁺	8.20e-10	0.00	0.00	10 - 41000
25	C₂ + HN₂⁺ → N₂ + C₂H⁺	8.30e-10	0.00	0.00	10 - 41000
26	C₂ + O₂⁺ → CO⁺ + CO	4.10e-10	0.00	0.00	10 - 41000
27	C₂ + O₂H⁺ → O₂ + C₂H⁺	8.10e-10	0.00	0.00	10 - 41000
28	C₂ + S⁺ → CS⁺ + C	8.10e-10	0.00	0.00	10 - 41000
29	C₂ + SiO⁺ → SiC⁺ + CO	7.60e-10	0.00	0.00	10 - 41000
30	CH⁺ + C₂ → C₃⁺ + H	1.00e-9	0.00	0.00	10 - 41000
31	CH₃⁺ + C₂ → C₃H⁺ + H₂	9.90e-10	0.00	0.00	10 - 41000
32	CH₅⁺ + C₂ → C₂H⁺ + CH₄	9.50e-10	0.00	0.00	10 - 41000
33	H₂⁺ + C₂ → C₂H⁺ + H	1.10e-9	0.00	0.00	10 - 41000
34	H₂O⁺ + C₂ → C₂H⁺ + OH	4.70e-10	0.00	0.00	10 - 41000
35	H₃⁺ + C₂ → C₂H⁺ + H₂	1.80e-9	0.00	0.00	10 - 41000
36	H₃O⁺ + C₂ → C₂H⁺ + H₂O	9.20e-10	0.00	0.00	10 - 41000
37	He⁺ + C₂ → C⁺ + C + He	1.60e-9	0.00	0.00	10 - 41000
38	NH⁺ + C₂ → C₂H⁺ + N	4.90e-10	0.00	0.00	10 - 41000
39	NH⁺ + C₂ → C₂N⁺ + H	4.90e-10	0.00	0.00	10 - 41000
40	NH⁺ + C₂ → HCN⁺ + C	4.90e-10	0.00	0.00	10 - 41000
41	NH₂⁺ + C₂ → C₂H⁺ + NH	9.70e-10	0.00	0.00	10 - 41000
42	NH₃⁺ + C₂ → C₂H₂⁺ + NH	1.00e-11	0.00	0.00	10 - 41000
43	O⁺ + C₂ → CO⁺ + C	4.80e-10	0.00	0.00	10 - 41000
44	OH⁺ + C₂ → C₂H⁺ + O	4.80e-10	0.00	0.00	10 - 41000
45	C₂ + C₂H₂ → C₄H + H	2.88e-10	-1.14	77.00	24 - 300
46	C₂ + C₂H₄ → C₄H₃ + H	2.53e-10	-0.93	58.00	24 - 300
47	C₂ + CH₃CH₃ → CH₂CHCCH + H + H	1.30e-10	-0.94	44.00	24 - 300
48	C₂ + CH₃CHCH₂ → CH₃C₄H + H + H	4.10e-10	0.00	0.00	77 - 296
49	C₂ + CH₄ → CH₂CCH + H	8.96e-12	-0.42	13.00	24 - 300
50	C₂ + HC₄H → C₆H + H	4.10e-10	0.00	0.00	10 - 1000
51	C₂ + HCN → C₃N + H	1.11e-10	-0.82	9.70	10 - 300
52	C₂ + O₂ → CO + CO	1.50e-11	0.00	4300.00	298 - 1300
53	C₂ + OCS → CO + C₂S	1.00e-10	0.00	0.00	10 - 300
54	C₂ + S → CS + C	1.00e-10	0.00	0.00	10 - 300
55	H + C₂ → CH + C	4.67e-10	0.50	30450.00	1015 - 41000
56	N + C₂ → CN + C	5.00e-11	0.00	0.00	10 - 300
57	O + C₂ → CO + C	2.00e-10	-0.12	0.00	10 - 8000
58	C₂ + PHOTON → C₂⁺ + e^-	4.10e-10	0.00	3.80	10 - 41000
59	C₂ + PHOTON → C + C	2.40e-10	0.00	2.60	10 - 41000
60	C + C₂ → C₃ + PHOTON	3.00e-16	-1.00	0.00	10 - 300
61	C₂ + e^- → C₂^- + PHOTON	2.00e-15	-0.50	0.00	10 - 300

Variation of log fractional abundance (relative to H₂) with log time (years) in a dark cloud model. Ref. RATE12 paper.

C2

C₂