HC₉N

Cyanooctatetrayne
Flags: Detected, RATE12
Empirical: C₉HN
Mass: 123 amu
Dipole moment: 4.840 D
Added to system: 2003-04-28 18:00:51

4 HC₉N formation reactions

	Reaction	α	β	γ	T_l - T_u (K)
1	N + C₉H^- → HC₉N + e^-	5.00e-12	0.00	0.00	10 - 300
2	H₂C₉N⁺ + e^- → HC₉N + H	1.00e-6	-0.30	0.00	10 - 300
3	H₃C₉N⁺ + e^- → HC₉N + H₂	1.00e-6	-0.30	0.00	10 - 300
4	CN + C₈H₂ → HC₉N + H	2.72e-10	-0.52	19.00	10 - 300

	Reaction	α	β	γ	T_l - T_u (K)
1	H⁺ + HC₉N → HC₉N⁺ + H	1.00e-8	-0.50	0.00	10 - 300
2	HC₉N + CRPHOT → C₈H + CN	1.30e-17	0.00	875.00	10 - 41000
3	C⁺ + HC₉N → C₉H⁺ + CN	6.00e-9	-0.50	0.00	10 - 41000
4	H₃⁺ + HC₉N → H₂C₉N⁺ + H₂	1.00e-8	-0.50	0.00	10 - 41000
5	HCO⁺ + HC₉N → H₂C₉N⁺ + CO	4.00e-9	-0.50	0.00	10 - 41000
6	He⁺ + HC₉N → C₈H⁺ + CN + He	7.00e-9	-0.50	0.00	10 - 41000
7	HC₉N + PHOTON → C₈H + CN	1.00e-9	0.00	1.70	10 - 41000
8	HC₉N + PHOTON → HC₉N⁺ + e^-	2.00e-10	0.00	2.50	10 - 41000

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

HC9N