OCS

Carbonyl sulphide
Flags: Detected, RATE12
Empirical: COS
Mass: 60 amu
Dipole moment: 0.710 D
Heat of formation: -142.0 kJ mol^-1
Added to system: 2003-04-28 18:00:51

Reactions: Formation | Destruction

9 OCS formation reactions

	Reaction	α	β	T_l - T_u (K)
1	CO + S^- → OCS + e^-	3.00e-10	0.00	10 - 41000
2	H₂S + OCS⁺ → H₂S⁺ + OCS	1.40e-9	-0.50	10 - 41000
3	OCS⁺ + NH₃ → NH₃⁺ + OCS	2.30e-9	-0.50	10 - 41000
4	HOCS⁺ + e^- → OCS + H	2.00e-7	-0.50	10 - 300
5	H₂O + HOCS⁺ → H₃O⁺ + OCS	3.40e-9	-0.50	10 - 41000
6	CH + SO → OCS + H	1.10e-10	0.00	10 - 300
7	O + HCS → OCS + H	5.00e-11	0.00	10 - 300
8	OH + CS → OCS + H	1.70e-10	0.00	10 - 300
9	S + HCO → H + OCS	8.00e-11	0.00	10 - 300

	Reaction	α	γ	T_l - T_u (K)
1	C⁺ + OCS → OCS⁺ + C	4.00e-10	0.00	10 - 41000
2	CH₄⁺ + OCS → OCS⁺ + CH₄	4.20e-10	0.00	10 - 41000
3	CO₂⁺ + OCS → OCS⁺ + CO₂	9.60e-10	0.00	10 - 41000
4	H⁺ + OCS → OCS⁺ + H	2.10e-9	0.00	10 - 300
5	H₂O⁺ + OCS → OCS⁺ + H₂O	2.50e-9	0.00	10 - 41000
6	N⁺ + OCS → OCS⁺ + N	1.02e-9	0.00	10 - 41000
7	N₂⁺ + OCS → OCS⁺ + N₂	2.60e-10	0.00	10 - 41000
8	O⁺ + OCS → OCS⁺ + O	6.50e-10	0.00	10 - 41000
9	OCS + CRPHOT → OCS⁺ + e^-	1.30e-17	722.00	10 - 41000
10	OCS + CRPHOT → S + CO	1.30e-17	2680.00	10 - 41000
11	C⁺ + OCS → CS⁺ + CO	1.60e-9	0.00	10 - 41000
12	C₃H⁺ + OCS → C₃O + CS⁺ + H	4.27e-10	0.00	10 - 41000
13	C₃H⁺ + OCS → HC₃O⁺ + CS	1.22e-10	0.00	10 - 41000
14	C₃H⁺ + OCS → HC₃S⁺ + CO	6.10e-11	0.00	10 - 41000
15	CH⁺ + OCS → HCS⁺ + CO	1.05e-9	0.00	10 - 41000
16	CH⁺ + OCS → HOCS⁺ + C	8.55e-10	0.00	10 - 41000
17	CH₂⁺ + OCS → H₂CS⁺ + CO	7.20e-10	0.00	10 - 41000
18	CH₂⁺ + OCS → HCS⁺ + HCO	1.08e-9	0.00	10 - 41000
19	CH₃⁺ + OCS → H₃CS⁺ + CO	1.30e-9	0.00	10 - 41000
20	CH₄⁺ + OCS → HOCS⁺ + CH₃	9.80e-10	0.00	10 - 41000
21	H⁺ + OCS → HS⁺ + CO	2.10e-9	0.00	10 - 41000
22	H₃⁺ + OCS → HOCS⁺ + H₂	1.90e-9	0.00	10 - 41000
23	HCO⁺ + OCS → HOCS⁺ + CO	1.10e-9	0.00	10 - 41000
24	He⁺ + OCS → CS⁺ + O + He	7.60e-10	0.00	10 - 41000
25	He⁺ + OCS → CS + O⁺ + He	7.60e-10	0.00	10 - 41000
26	He⁺ + OCS → S⁺ + CO + He	7.60e-10	0.00	10 - 41000
27	He⁺ + OCS → S + CO⁺ + He	7.60e-10	0.00	10 - 41000
28	N⁺ + OCS → CS⁺ + NO	7.00e-11	0.00	10 - 41000
29	N⁺ + OCS → S⁺ + CO + N	3.08e-10	0.00	10 - 41000
30	N₂⁺ + OCS → S⁺ + N₂ + CO	1.04e-9	0.00	10 - 41000
31	O⁺ + OCS → CO₂ + S⁺	2.00e-11	0.00	10 - 41000
32	P⁺ + OCS → PO⁺ + CS	4.18e-10	0.00	10 - 41000
33	S⁺ + OCS → S₂⁺ + CO	9.10e-10	0.00	10 - 41000
34	SO⁺ + OCS → S₂⁺ + CO₂	2.69e-10	0.00	10 - 41000
35	Si⁺ + OCS → SiS⁺ + CO	9.00e-10	0.00	10 - 41000
36	C₂ + OCS → CO + C₂S	1.00e-10	0.00	10 - 300
37	C₂H + OCS → CO + C₂S + H	1.00e-10	0.00	10 - 300
38	C + OCS → CO + CS	1.00e-10	0.00	10 - 300
39	CH + OCS → CO + CS + H	4.00e-10	0.00	10 - 300
40	H + OCS → HS + CO	1.23e-11	1949.00	261 - 525
41	O + OCS → CO₂ + S	8.30e-11	5530.00	1200 - 1900
42	O + OCS → SO + CO	1.60e-11	2150.00	200 - 2500
43	OCS + PHOTON → OCS⁺ + e^-	6.90e-10	3.40	10 - 41000
44	OCS + PHOTON → S + CO	3.70e-9	2.10	10 - 41000

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