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.. common
H2
H
CO
OH
HCO+
C
H3+
C+
H2O
e-

.. in RATE12
C
C+
C-
C10
C10+
C10-
C10H
C10H+
C10H-
C10H2
C10H2+
C10H3+
C11
C11+
C2
C2+
C2-
C2H
C2H+
C2H-
C2H2
C2H2+
C2H3
C2H3+
C2H4
C2H4+
C2H5
C2H5+
C2H5CN
C2H5CNH+
C2H5OH
C2H5OH+
C2H5OH2+
C2H7+
C2N
C2N+
C2N2+
C2NH+
C2O
C2O+
C2S
C2S+
C3
C3+
C3-
C3H
C3H+
C3H-
C3H2
C3H2+
C3H2O+
C3H3+
C3H4+
C3H5+
C3H6+
C3H7+
C3N
C3N+
C3N-
C3O
C3O+
C3P
C3S
C3S+
C4
C4+
C4-
C4H
C4H+
C4H-
C4H2+
C4H3
C4H3+
C4H4+
C4H5+
C4H7+
C4N
C4N+
C4P
C4P+
C4S
C4S+
C5
C5+
C5-
C5H
C5H+
C5H-
C5H2
C5H2+
C5H3+
C5H5+
C5N
C5N+
C5N-
C6
C6+
C6-
C6H
C6H+
C6H-
C6H2
C6H2+
C6H3+
C6H4+
C6H5+
C6H6
C6H6+
C6H7+
C7
C7+
C7-
C7H
C7H+
C7H-
C7H2
C7H2+
C7H3+
C7H4+
C7H5+
C7N
C7N+
C8
C8+
C8-
C8H
C8H+
C8H-
C8H2
C8H2+
C8H3+
C8H4+
C8H5+
C9
C9+
C9-
C9H
C9H+
C9H-
C9H2
C9H2+
C9H3+
C9H4+
C9H5+
C9N
C9N+
CCP
CCP+
CCl
CCl+
CF+
CH
CH+
CH-
CH2
CH2+
CH2CCH
CH2CCH+
CH2CCH2
CH2CHCCH
CH2CHCHCH2
CH2CHCN
CH2CHCN+
CH2CHCNH+
CH2CN
CH2CN+
CH2CO
CH2CO+
CH2NH
CH2NH2+
CH2PH
CH3
CH3+
CH3C3N
CH3C3N+
CH3C3NH+
CH3C4H
CH3C4H+
CH3C5N
CH3C5NH+
CH3C6H
CH3C7N
CH3C7NH+
CH3CCH
CH3CH3
CH3CH3+
CH3CHCH2
CH3CHO
CH3CHO+
CH3CHOH+
CH3CN
CH3CN+
CH3CNH+
CH3CO+
CH3COCH3
CH3COCH3+
CH3COCH4+
CH3CS+
CH3OCH3
CH3OCH3+
CH3OCH4+
CH3OH
CH3OH+
CH3OH2+
CH4
CH4+
CH4N+
CH5+
CN
CN+
CN-
CNC+
CNO
CO
CO+
CO2
CO2+
COOCH4+
CP
CP+
CRP
CRPHOT
CS
CS+
Cl
Cl+
ClO
ClO+
F
F+
Fe
Fe+
H
H+
H-
H2
H2+
H2C4N+
H2C7N+
H2C9N+
H2CCC
H2CCl+
H2CN
H2CNO+
H2CO
H2CO+
H2CS
H2CS+
H2Cl+
H2F+
H2NC+
H2NCO+
H2NO+
H2O
H2O+
H2O2
H2OCN+
H2PO+
H2S
H2S+
H2S2
H2S2+
H2SiO
H2SiO+
H3+
H3C3O+
H3C5N+
H3C7N+
H3C9N+
H3CO+
H3CS+
H3O+
H3S+
H3S2+
H3SiO+
H5C2O2+
HC2O+
HC2P
HC2P+
HC2S+
HC3N
HC3N+
HC3NH+
HC3O+
HC3S+
HC4H
HC4N+
HC4S+
HC5N
HC5N+
HC5NH+
HC7N
HC7N+
HC9N
HC9N+
HCN
HCN+
HCNH+
HCNO
HCNO+
HCNOH+
HCO
HCO+
HCO2+
HCOOCH3
HCOOH
HCOOH+
HCOOH2+
HCP
HCP+
HCS
HCS+
HCSi
HCSi+
HCl
HCl+
HF
HF+
HN2O+
HNC
HNC3
HNCO
HNCO+
HNCOH+
HNO
HNO+
HNS+
HNSi
HNSi+
HOC+
HOCN
HOCN+
HOCS+
HONC
HONC+
HPN+
HPO
HPO+
HS
HS+
HS2
HS2+
HSO+
HSO2+
HSiO2+
HSiS+
He
He+
HeH+
Mg
Mg+
N
N+
N2
N2+
N2H+
N2O
N2O+
NCCN
NCCNCH3+
NCCNH+
NH
NH+
NH2
NH2+
NH2CN
NH2CNH+
NH3
NH3+
NH4+
NO
NO+
NO2
NO2+
NS
NS+
Na
Na+
O
O+
O-
O2
O2+
O2-
O2H
O2H+
OCN
OCN+
OCS
OCS+
OH
OH+
OH-
P
P+
PC2H2+
PC2H3+
PC2H4+
PC3H+
PC4H+
PCH2+
PCH3+
PCH4+
PH
PH+
PH2
PH2+
PH3+
PHOTON
PN
PN+
PNH2+
PNH3+
PO
PO+
S
S+
S-
S2
S2+
SO
SO+
SO2
SO2+
Si
Si+
SiC
SiC+
SiC2
SiC2+
SiC2H
SiC2H+
SiC2H2
SiC2H2+
SiC2H3+
SiC3
SiC3+
SiC3H
SiC3H+
SiC3H2+
SiC4
SiC4+
SiC4H+
SiCH2
SiCH2+
SiCH3
SiCH3+
SiCH4+
SiF+
SiH
SiH+
SiH2
SiH2+
SiH3
SiH3+
SiH4
SiH4+
SiH5+
SiN
SiN+
SiNC
SiNC+
SiNCH+
SiNH2+
SiO
SiO+
SiO2
SiOH+
SiS
SiS+
e-

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

ReactionαβγTl - Tu (K)
1C- + C → C2 + e-5.00e-10 0.00 0.0010 - 41000
2C2+ + HCO → HCO+ + C23.80e-10-0.50 0.0010 - 41000
3C2+ + NO → NO+ + C23.40e-10 0.00 0.0010 - 41000
4C2+ + S → S+ + C25.80e-10 0.00 0.0010 - 41000
5C + C2+ → C2 + C+1.10e-10 0.00 0.0010 - 41000
6CH2 + C2+ → C2 + CH2+4.50e-10 0.00 0.0010 - 41000
7CH + C2+ → C2 + CH+3.20e-10-0.50 0.0010 - 41000
8NH2 + C2+ → C2 + NH2+4.60e-10-0.50 0.0010 - 41000
9OH + C2+ → C2 + OH+6.50e-10-0.50 0.0010 - 41000
10C2- + CRPHOT → C2 + e-1.30e-17 0.00250.0010 - 41000
11C2H + CRPHOT → C2 + H1.30e-17 0.002500.0010 - 41000
12C2N + CRPHOT → C2 + N1.30e-17 0.00500.0010 - 41000
13C2O + CRPHOT → C2 + O1.30e-17 0.00375.0010 - 41000
14C2S + CRPHOT → S + C21.30e-17 0.00750.0010 - 41000
15C3 + CRPHOT → C2 + C1.30e-17 0.00559.5010 - 41000
16C3N + CRPHOT → CN + C21.30e-17 0.00875.0010 - 41000
17C3O + CRPHOT → CO + C21.30e-17 0.003304.5010 - 41000
18C3S + CRPHOT → CS + C21.30e-17 0.00750.0010 - 41000
19C4 + CRPHOT → C2 + C21.30e-17 0.00500.0010 - 41000
20C4 + CRPHOT → C2 + C21.30e-17 0.00500.0010 - 41000
21C4H + CRPHOT → C2H + C21.30e-17 0.002500.0010 - 41000
22C5 + CRPHOT → C3 + C21.30e-17 0.00500.0010 - 41000
23C5H + CRPHOT → C3H + C21.30e-17 0.002500.0010 - 41000
24CCP + CRPHOT → C2 + P1.30e-17 0.00375.0010 - 41000
25SiC4 + CRPHOT → SiC2 + C21.30e-17 0.00750.0010 - 41000
26C10+ + e- → C8 + C21.00e-6-0.30 0.0010 - 300
27C11+ + e- → C9 + C26.76e-7-0.30 0.0010 - 41000
28C2H+ + e- → C2 + H1.16e-7-0.76 0.0010 - 300
29C2H2+ + e- → C2 + H + H9.00e-8-0.50 0.0010 - 300
30C2H3+ + e- → C2 + H + H21.50e-8-0.84 0.0050 - 1000
31C2H3+ + e- → C2 + H + H22.87e-8-1.38 0.001000 - 30000
32C2N+ + e- → C2 + N1.50e-7-0.50 0.0010 - 300
33C2S+ + e- → S + C21.50e-7-0.50 0.0010 - 300
34C3+ + e- → C2 + C3.00e-7-0.50 0.0010 - 300
35C3H2+ + e- → C2 + CH23.00e-8-0.50 0.0010 - 300
36C3N+ + e- → CN + C23.00e-7-0.50 0.0010 - 300
37C3O+ + e- → CO + C23.00e-7-0.50 0.0010 - 300
38C3S+ + e- → CS + C21.00e-7-0.50 0.0010 - 300
39C4+ + e- → C2 + C21.20e-7-0.50 0.0010 - 300
40C4+ + e- → C2 + C21.20e-7-0.50 0.0010 - 300
41C4N+ + e- → C2N + C21.50e-7-0.50 0.0010 - 300
42C4P+ + e- → CCP + C21.50e-7-0.50 0.0010 - 300
43C4S+ + e- → C2S + C21.00e-7-0.50 0.0010 - 300
44C5+ + e- → C3 + C23.00e-7-0.50 0.0010 - 300
45C5N+ + e- → C3N + C23.00e-7-0.50 0.0010 - 300
46C6+ + e- → C4 + C21.00e-6-0.30 0.0010 - 300
47C7+ + e- → C5 + C21.00e-6-0.30 0.0010 - 300
48C7N+ + e- → C5N + C23.00e-7-0.50 0.0010 - 300
49C8+ + e- → C6 + C21.00e-6-0.30 0.0010 - 300
50C9+ + e- → C7 + C21.00e-6-0.30 0.0010 - 300
51C9N+ + e- → C7N + C23.00e-7-0.50 0.0010 - 300
52CCP+ + e- → P + C21.50e-7-0.50 0.0010 - 300
53CH2CO+ + e- → C2 + H2O2.00e-7-0.50 0.0010 - 300
54CNC+ + e- → C2 + N2.00e-8-0.60 0.0010 - 300
55HC3N+ + e- → HCN + C23.60e-7-0.60 0.0010 - 300
56SiC2+ + e- → Si + C21.50e-7-0.50 0.0010 - 300
57SiC3+ + e- → SiC + C21.50e-7-0.50 0.0010 - 300
58SiC4+ + e- → SiC2 + C21.50e-7-0.50 0.0010 - 300
59C+ + C10H → C9H+ + C22.30e-10-0.50 0.0010 - 41000
60C+ + CCP → CP+ + C25.00e-10-0.50 0.0010 - 41000
61C+ + SiC → Si+ + C22.50e-9-0.50 0.0010 - 41000
62C2H+ + H2CO → H3CO+ + C21.10e-9-0.50 0.0010 - 41000
63C2H+ + HC3N → HC3NH+ + C21.41e-9-0.50 0.0010 - 41000
64C2H+ + HCN → HCNH+ + C21.40e-9-0.50 0.0010 - 41000
65C2H+ + HNC → HCNH+ + C21.40e-9-0.50 0.0010 - 41000
66C2H + CO+ → HCO+ + C23.90e-10 0.00 0.0010 - 41000
67CH2 + C2H+ → C2 + CH3+4.40e-10 0.00 0.0010 - 41000
68CH + C2H+ → C2 + CH2+3.20e-10-0.50 0.0010 - 41000
69He+ + C10 → C8+ + C2 + He1.82e-10 0.00 0.0010 - 41000
70He+ + C10H → C5H+ + C3 + C2 + He3.75e-10-0.50 0.0010 - 41000
71He+ + C10H → C7H+ + C2 + C + He4.80e-10-0.50 0.0010 - 41000
72He+ + C2S → S+ + C2 + He2.50e-10-0.50 0.0010 - 41000
73He+ + C3 → C2 + C+ + He2.00e-9 0.00 0.0010 - 41000
74He+ + C3S → CS+ + C2 + He5.00e-10-0.50 0.0010 - 41000
75He+ + C4 → C2+ + C2 + He6.70e-10 0.00 0.0010 - 41000
76He+ + C4H → C2H+ + C2 + He1.00e-9-0.50 0.0010 - 41000
77He+ + C4P → CCP+ + C2 + He5.00e-10-0.50 0.0010 - 41000
78He+ + C5 → C3+ + C2 + He1.00e-9 0.00 0.0010 - 41000
79He+ + C5H → C3H+ + C2 + He1.50e-9-0.50 0.0010 - 41000
80He+ + C6 → C4+ + C2 + He1.40e-9 0.00 0.0010 - 41000
81He+ + C6H → C4H+ + C2 + He1.40e-9-0.50 0.0010 - 41000
82He+ + C7 → C5+ + C2 + He1.40e-9 0.00 0.0010 - 41000
83He+ + C7H → C5H+ + C2 + He2.00e-9-0.50 0.0010 - 41000
84He+ + C8 → C6+ + C2 + He1.50e-9 0.00 0.0010 - 41000
85He+ + C8H → C6H+ + C2 + He1.50e-9-0.50 0.0010 - 41000
86He+ + C9 → C7+ + C2 + He1.50e-9 0.00 0.0010 - 41000
87He+ + C9H → C7H+ + C2 + He2.50e-9-0.50 0.0010 - 41000
88He+ + CCP → P+ + C2 + He5.00e-10-0.50 0.0010 - 41000
89He+ + SiC2 → Si+ + C2 + He2.00e-9-0.50 0.0010 - 41000
90N + C3- → CN- + C25.00e-11 0.00 0.0010 - 41000
91N + C3H2+ → HCNH+ + C26.60e-12 0.00 0.0010 - 41000
92N + C5- → C3N- + C22.30e-11 0.00 0.0010 - 41000
93N + C7- → C5N- + C21.65e-11 0.00 0.0010 - 41000
94NH2 + C2H+ → C2 + NH3+4.60e-10-0.50 0.0010 - 41000
95NH3 + C2H+ → C2 + NH4+5.50e-10-0.50 0.0010 - 41000
96C2- + C+ → C + C27.51e-8-0.50 0.0010 - 41000
97C2- + C2H2+ → C2 + C2H27.51e-8-0.50 0.0010 - 41000
98C2- + C2H3+ → C2 + C2H37.51e-8-0.50 0.0010 - 41000
99C2- + C4H2+ → C2 + HC4H7.51e-8-0.50 0.0010 - 41000
100C2- + C4H3+ → C2 + C4H37.51e-8-0.50 0.0010 - 41000
101C2- + C4S+ → C2 + C4S7.51e-8-0.50 0.0010 - 41000
102C2- + CH2CCH+ → C2 + CH2CCH7.51e-8-0.50 0.0010 - 41000
103C2- + CH3+ → C2 + CH37.51e-8-0.50 0.0010 - 41000
104C2- + CNC+ → C2 + C2N7.51e-8-0.50 0.0010 - 41000
105C2- + Fe+ → C2 + Fe7.51e-8-0.50 0.0010 - 41000
106C2- + H+ → C2 + H7.51e-8-0.50 0.0010 - 41000
107C2- + H2CO+ → C2 + H2CO7.51e-8-0.50 0.0010 - 41000
108C2- + H2S+ → C2 + H2S7.51e-8-0.50 0.0010 - 41000
109C2- + H3+ → C2 + H2 + H7.51e-8-0.50 0.0010 - 41000
110C2- + H3O+ → C2 + H + H2O7.51e-8-0.50 0.0010 - 41000
111C2- + HC2S+ → C2 + C2S + H7.51e-8-0.50 0.0010 - 41000
112C2- + HCNH+ → C2 + HCN + H3.76e-8-0.50 0.0010 - 41000
113C2- + HCNH+ → C2 + HNC + H3.76e-8-0.50 0.0010 - 41000
114C2- + HCO+ → C2 + H + CO3.76e-8-0.50 0.0010 - 41000
115C2- + HCO+ → C2 + HCO3.76e-8-0.50 0.0010 - 41000
116C2- + He+ → C2 + He7.51e-8-0.50 0.0010 - 41000
117C2- + Mg+ → C2 + Mg7.51e-8-0.50 0.0010 - 41000
118C2- + N+ → C2 + N7.51e-8-0.50 0.0010 - 41000
119C2- + N2H+ → C2 + N2 + H7.51e-8-0.50 0.0010 - 41000
120C2- + NH3+ → C2 + NH37.51e-8-0.50 0.0010 - 41000
121C2- + NH4+ → C2 + NH3 + H7.51e-8-0.50 0.0010 - 41000
122C2- + NO+ → C2 + NO7.51e-8-0.50 0.0010 - 41000
123C2- + Na+ → C2 + Na7.51e-8-0.50 0.0010 - 41000
124C2- + O+ → C2 + O7.51e-8-0.50 0.0010 - 41000
125C2- + S+ → C2 + S7.51e-8-0.50 0.0010 - 41000
126C2- + SO+ → C2 + SO7.51e-8-0.50 0.0010 - 41000
127C2- + Si+ → C2 + Si7.51e-8-0.50 0.0010 - 41000
128C2- + SiO+ → C2 + SiO7.51e-8-0.50 0.0010 - 41000
129C2- + SiOH+ → C2 + SiO + H7.51e-8-0.50 0.0010 - 41000
130C2- + SiS+ → C2 + SiS7.51e-8-0.50 0.0010 - 41000
131C + C2N → C2 + CN1.00e-10 0.00 0.0010 - 300
132C + C2O → C2 + CO2.00e-10 0.00 0.0010 - 300
133C + C4 → C2 + C39.00e-11 0.00 0.0010 - 300
134C + C6 → C2 + C55.00e-11 0.00 0.0010 - 300
135C + C8 → C2 + C71.00e-13 0.00 0.0010 - 300
136C + CH → C2 + H6.59e-11 0.00 0.0010 - 300
137C + CN → C2 + N4.98e-10 0.0018116.00603 - 41000
138C + CO → C2 + O2.94e-11 0.5058025.001934 - 41000
139C + CS → S + C21.44e-11 0.5020435.00681 - 41000
140CN + CN → N2 + C22.66e-9 0.0021638.003800 - 7000
141N + C3 → CN + C21.00e-13 0.00 0.0010 - 300
142O + C3 → CO + C25.00e-12 0.00900.0010 - 300
143C10 + PHOTON → C7 + C2 + C3.46e-12 0.00 5.1010 - 41000
144C10 + PHOTON → C8 + C21.96e-10 0.00 3.0010 - 41000
145C10H + PHOTON → C8 + C2 + H1.42e-12 0.00 5.0010 - 41000
146C11 + PHOTON → C9 + C22.86e-10 0.00 2.8010 - 41000
147C2- + PHOTON → C2 + e-2.96e-9 0.00 2.0010 - 41000
148C2H + PHOTON → C2 + H5.20e-10 0.00 2.3010 - 41000
149C2N + PHOTON → C2 + N5.00e-10 0.00 1.7010 - 41000
150C2O + PHOTON → C2 + O5.00e-10 0.00 1.7010 - 41000
151C2S + PHOTON → S + C21.00e-10 0.00 2.0010 - 41000
152C3 + PHOTON → C2 + C5.00e-9 0.00 2.1010 - 41000
153C3N + PHOTON → CN + C25.00e-10 0.00 1.8010 - 41000
154C3O + PHOTON → CO + C27.00e-9 0.00 1.6010 - 41000
155C3P + PHOTON → C2 + CP5.00e-10 0.00 1.8010 - 41000
156C3S + PHOTON → CS + C21.00e-10 0.00 2.0010 - 41000
157C4 + PHOTON → C2 + C24.25e-9 0.00 1.9010 - 41000
158C4 + PHOTON → C2 + C24.25e-9 0.00 1.9010 - 41000
159C4H + PHOTON → C2H + C21.85e-9 0.00 2.0010 - 41000
160C5 + PHOTON → C3 + C21.00e-11 0.00 1.7010 - 41000
161C5H + PHOTON → C3H + C24.33e-10 0.00 1.4010 - 41000
162CCP + PHOTON → C2 + P1.00e-10 0.00 1.7010 - 41000
163SiC2 + PHOTON → C2 + Si2.60e-10 0.00 2.3010 - 41000
164SiC3 + PHOTON → C2 + SiC2.00e-10 0.00 2.3010 - 41000
165C + C → C2 + PHOTON4.36e-18 0.35161.3010 - 41000

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