C₄H

Butadiynyl radical
Flags: Detected, RATE12
Empirical: C₄H
Mass: 49 amu
Dipole moment: 0.900 D
Added to system: 2003-04-28 18:00:51

Reactions: Formation | Destruction

61 C₄H formation reactions

	Reaction	α	β	γ	T_l - T_u (K)
1	C + C₃H^- → C₄H + e^-	1.00e-9	0.00	0.00	10 - 300
2	H + C₄^- → C₄H + e^-	6.20e-10	0.00	0.00	10 - 300
3	C₄H^- + CRPHOT → C₄H + e^-	1.30e-17	0.00	250.00	10 - 41000
4	C₄H₃ + CRPHOT → C₄H + H + H	1.30e-17	0.00	5000.00	10 - 41000
5	C₆H₂ + CRPHOT → C₄H + C₂H	1.30e-17	0.00	875.00	10 - 41000
6	CH₃C₄H + CRPHOT → C₄H + CH₃	1.30e-17	0.00	750.00	10 - 41000
7	HC₄H + CRPHOT → C₄H + H	1.30e-17	0.00	865.00	10 - 41000
8	HC₅N + CRPHOT → C₄H + CN	1.30e-17	0.00	875.00	10 - 41000
9	C₄H₂⁺ + e^- → C₄H + H	8.25e-7	-0.79	0.00	10 - 1000
10	C₄H₃⁺ + e^- → C₄H + H₂	3.10e-7	-0.50	0.00	10 - 300
11	C₄H₅⁺ + e^- → C₄H + H₂ + H₂	1.50e-7	-0.50	0.00	10 - 300
12	C₅H⁺ + e^- → C₄H + C	1.00e-6	-0.30	0.00	10 - 300
13	HC₅NH⁺ + e^- → HCN + C₄H	4.40e-7	-0.70	0.00	10 - 1000
14	HC₅NH⁺ + e^- → HNC + C₄H	4.40e-7	-0.70	0.00	10 - 1000
15	N + C₅H^- → CN^- + C₄H	2.50e-12	0.00	0.00	10 - 41000
16	N + C₇H^- → C₃N^- + C₄H	2.50e-12	0.00	0.00	10 - 41000
17	O + C₅H₂⁺ → C₄H + HCO⁺	2.00e-10	0.00	0.00	10 - 41000
18	C₄H^- + C⁺ → C + C₄H	7.51e-8	-0.50	0.00	10 - 41000
19	C₄H^- + C₂H₂⁺ → C₄H + C₂H₂	7.51e-8	-0.50	0.00	10 - 41000
20	C₄H^- + C₂H₃⁺ → C₄H + C₂H₃	7.51e-8	-0.50	0.00	10 - 41000
21	C₄H^- + C₄H₂⁺ → C₄H + HC₄H	7.51e-8	-0.50	0.00	10 - 41000
22	C₄H^- + C₄H₃⁺ → C₄H + C₄H₃	7.51e-8	-0.50	0.00	10 - 41000
23	C₄H^- + C₄S⁺ → C₄H + C₄S	7.51e-8	-0.50	0.00	10 - 41000
24	C₄H^- + CH₂CCH⁺ → C₄H + CH₂CCH	7.51e-8	-0.50	0.00	10 - 41000
25	C₄H^- + CH₃⁺ → C₄H + CH₃	7.51e-8	-0.50	0.00	10 - 41000
26	C₄H^- + CNC⁺ → C₄H + C₂N	7.51e-8	-0.50	0.00	10 - 41000
27	C₄H^- + Fe⁺ → C₄H + Fe	7.51e-8	-0.50	0.00	10 - 41000
28	C₄H^- + H⁺ → C₄H + H	7.51e-8	-0.50	0.00	10 - 41000
29	C₄H^- + H₂CO⁺ → C₄H + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
30	C₄H^- + H₂S⁺ → C₄H + H₂S	7.51e-8	-0.50	0.00	10 - 41000
31	C₄H^- + H₃⁺ → C₄H + H₂ + H	7.51e-8	-0.50	0.00	10 - 41000
32	C₄H^- + H₃O⁺ → C₄H + H + H₂O	7.51e-8	-0.50	0.00	10 - 41000
33	C₄H^- + HC₂S⁺ → C₄H + C₂S + H	7.51e-8	-0.50	0.00	10 - 41000
34	C₄H^- + HCNH⁺ → C₄H + HCN + H	3.76e-8	-0.50	0.00	10 - 41000
35	C₄H^- + HCNH⁺ → C₄H + HNC + H	3.76e-8	-0.50	0.00	10 - 41000
36	C₄H^- + HCO⁺ → C₄H + H + CO	3.76e-8	-0.50	0.00	10 - 41000
37	C₄H^- + HCO⁺ → C₄H + HCO	3.76e-8	-0.50	0.00	10 - 41000
38	C₄H^- + He⁺ → C₄H + He	7.51e-8	-0.50	0.00	10 - 41000
39	C₄H^- + Mg⁺ → C₄H + Mg	7.51e-8	-0.50	0.00	10 - 41000
40	C₄H^- + N⁺ → C₄H + N	7.51e-8	-0.50	0.00	10 - 41000
41	C₄H^- + N₂H⁺ → C₄H + N₂ + H	7.51e-8	-0.50	0.00	10 - 41000
42	C₄H^- + NH₃⁺ → C₄H + NH₃	7.51e-8	-0.50	0.00	10 - 41000
43	C₄H^- + NH₄⁺ → C₄H + NH₃ + H	7.51e-8	-0.50	0.00	10 - 41000
44	C₄H^- + NO⁺ → C₄H + NO	7.51e-8	-0.50	0.00	10 - 41000
45	C₄H^- + Na⁺ → C₄H + Na	7.51e-8	-0.50	0.00	10 - 41000
46	C₄H^- + O⁺ → C₄H + O	7.51e-8	-0.50	0.00	10 - 41000
47	C₄H^- + S⁺ → C₄H + S	7.51e-8	-0.50	0.00	10 - 41000
48	C₄H^- + SO⁺ → C₄H + SO	7.51e-8	-0.50	0.00	10 - 41000
49	C₄H^- + Si⁺ → C₄H + Si	7.51e-8	-0.50	0.00	10 - 41000
50	C₄H^- + SiO⁺ → C₄H + SiO	7.51e-8	-0.50	0.00	10 - 41000
51	C₄H^- + SiOH⁺ → C₄H + SiO + H	7.51e-8	-0.50	0.00	10 - 41000
52	C₄H^- + SiS⁺ → C₄H + SiS	7.51e-8	-0.50	0.00	10 - 41000
53	C₂ + C₂H₂ → C₄H + H	2.88e-10	-1.14	77.00	24 - 300
54	C + C₃H₂ → C₄H + H	1.00e-10	0.00	0.00	10 - 300
55	C + H₂CCC → C₄H + H	1.00e-10	0.00	0.00	10 - 300
56	O + C₅H → C₄H + CO	1.70e-11	0.00	0.00	10 - 300
57	C₄H^- + PHOTON → C₄H + e^-	1.97e-9	0.00	2.00	10 - 41000
58	C₄H₃ + PHOTON → C₄H + H₂	1.00e-9	0.00	1.70	10 - 41000
59	CH₃C₄H + PHOTON → C₄H + CH₃	2.00e-11	0.00	1.70	10 - 41000
60	HC₄H + PHOTON → C₄H + H	1.90e-9	0.00	1.60	10 - 41000
61	HC₅N + PHOTON → C₄H + CN	5.00e-10	0.00	1.80	10 - 41000

	Reaction	α	β	γ	T_l - T_u (K)
1	H⁺ + C₄H → C₄H⁺ + H	2.00e-9	-0.50	0.00	10 - 41000
2	C₄H + CRPHOT → C₂H + C₂	1.30e-17	0.00	2500.00	10 - 41000
3	C₄H + CRPHOT → C₄ + H	1.30e-17	0.00	2500.00	10 - 41000
4	C⁺ + C₄H → C₅⁺ + H	1.00e-9	-0.50	0.00	10 - 41000
5	C₂H₂⁺ + C₄H → C₆H⁺ + H₂	1.00e-9	-0.50	0.00	10 - 41000
6	C₂H₂⁺ + C₄H → C₆H₂⁺ + H	1.00e-9	-0.50	0.00	10 - 41000
7	C₂H₃⁺ + C₄H → C₄H₂⁺ + C₂H₂	4.00e-10	-0.50	0.00	10 - 41000
8	C₂H₃⁺ + C₄H → C₆H₂⁺ + H₂	4.00e-10	-0.50	0.00	10 - 41000
9	C₂H₃⁺ + C₄H → C₆H₃⁺ + H	4.00e-10	-0.50	0.00	10 - 41000
10	C₂H₄⁺ + C₄H → C₅H₂⁺ + CH₃	7.50e-10	-0.50	0.00	10 - 41000
11	C₂H₄⁺ + C₄H → C₆H₄⁺ + H	2.50e-10	-0.50	0.00	10 - 41000
12	C₃H₂⁺ + C₄H → C₇H⁺ + H₂	5.00e-10	-0.50	0.00	10 - 41000
13	C₃H₂⁺ + C₄H → C₇H₂⁺ + H	5.00e-10	-0.50	0.00	10 - 41000
14	C₃H₃⁺ + C₄H → C₇H₂⁺ + H₂	7.50e-10	-0.50	0.00	10 - 41000
15	C₃H₃⁺ + C₄H → C₇H₃⁺ + H	7.50e-10	-0.50	0.00	10 - 41000
16	C₄H⁺ + C₄H → C₄H₂⁺ + C₄	6.00e-10	-0.50	0.00	10 - 300
17	C₄H⁺ + C₄H → C₈H⁺ + H	6.00e-10	-0.50	0.00	10 - 41000
18	C₄H + C₄H₂⁺ → C₈H₂⁺ + H	1.30e-9	-0.50	0.00	10 - 41000
19	C₄H + C₄H₃⁺ → C₈H₃⁺ + H	1.00e-9	-0.50	0.00	10 - 41000
20	C₄H + C₅H₂⁺ → C₉H₂⁺ + H	1.20e-9	-0.50	0.00	10 - 41000
21	CH₂CCH⁺ + C₄H → C₇H₂⁺ + H₂	7.50e-10	-0.50	0.00	10 - 41000
22	CH₂CCH⁺ + C₄H → C₇H₃⁺ + H	7.50e-10	-0.50	0.00	10 - 41000
23	CH₃⁺ + C₄H → C₅H₂⁺ + H₂	2.00e-9	-0.50	0.00	10 - 41000
24	H⁺ + C₄H → C₄⁺ + H₂	2.00e-9	-0.50	0.00	10 - 41000
25	H₃⁺ + C₄H → C₄H₂⁺ + H₂	2.00e-9	-0.50	0.00	10 - 41000
26	H₃O⁺ + C₄H → C₄H₂⁺ + H₂O	1.10e-9	-0.50	0.00	10 - 41000
27	HCO⁺ + C₄H → C₄H₂⁺ + CO	1.40e-9	-0.50	0.00	10 - 41000
28	He⁺ + C₄H → C₂H⁺ + C₂ + He	1.00e-9	-0.50	0.00	10 - 41000
29	He⁺ + C₄H → C₄⁺ + He + H	1.00e-9	-0.50	0.00	10 - 41000
30	S⁺ + C₄H → C₄S⁺ + H	1.00e-9	-0.50	0.00	10 - 41000
31	Si⁺ + C₄H → SiC₄⁺ + H	1.00e-9	-0.50	0.00	10 - 41000
32	C₂H₂ + C₄H → C₆H₂ + H	1.81e-10	-1.06	65.90	39 - 300
33	C₂H₄ + C₄H → C₆H₂ + H₂ + H	1.96e-10	-0.40	-9.40	39 - 300
34	C₄H + HNC → HC₅N + H	2.50e-10	-0.20	0.00	10 - 300
35	C₄H + NCCN → HC₅N + CN	2.00e-13	0.00	0.00	10 - 300
36	C + C₄H → C₅ + H	1.00e-10	0.00	0.00	10 - 300
37	CH₂CCH₂ + C₄H → C₆H₂ + CH₃	1.84e-10	-1.18	91.10	39 - 300
38	CH₂CCH₂ + C₄H → CH₃C₆H + H	1.84e-10	-1.18	91.10	39 - 300
39	CH₃CCH + C₄H → C₆H₂ + CH₃	1.59e-10	-1.18	91.10	39 - 300
40	CH₃CCH + C₄H → CH₃C₆H + H	1.59e-10	-1.18	91.10	39 - 300
41	CH₃CH₃ + C₄H → HC₄H + C₂H₅	2.87e-11	-1.23	24.80	39 - 300
42	CH₃CHCH₂ + C₄H → C₆H₂ + CH₃ + H₂	2.42e-10	-0.84	48.90	39 - 300
43	CH₃CHCH₂ + C₄H → CH₃C₆H + H₂ + H	8.07e-10	-0.84	48.90	39 - 300
44	CH₄ + C₄H → HC₄H + CH₃	2.02e-11	0.00	700.00	10 - 999
45	CH₄ + C₄H → HC₄H + CH₃	3.69e-13	2.83	103.20	1000 - 3000
46	N + C₄H → C₄N + H	1.70e-11	0.00	0.00	10 - 300
47	O + C₄H → C₃H + CO	1.70e-11	0.00	0.00	10 - 300
48	C₄H + PHOTON → C₂H + C₂	1.85e-9	0.00	2.00	10 - 41000
49	C₄H + PHOTON → C₄ + H	1.85e-9	0.00	2.00	10 - 41000
50	C₄H + e^- → C₄H^- + PHOTON	1.10e-8	-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.

C4H

C₄H