SiH

Silicon hydride
Flags: Detected, RATE12
Empirical: HSi
Mass: 29 amu
Dipole moment: 0.120 D
Heat of formation: 374.9 kJ mol^-1
Added to system: 2003-04-28 18:00:49

Reactions: Formation | Destruction

9 SiH formation reactions

	Reaction	α	β	γ	T_l - T_u (K)
1	SiH₂ + CRPHOT → SiH + H	1.30e-17	0.00	750.00	10 - 41000
2	H₂SiO⁺ + e^- → SiH + OH	1.50e-7	-0.50	0.00	10 - 300
3	SiH₂⁺ + e^- → SiH + H	1.50e-7	-0.50	0.00	10 - 300
4	SiH₃⁺ + e^- → SiH + H₂	1.50e-7	-0.50	0.00	10 - 300
5	O + SiCH₂⁺ → SiH + HCO⁺	3.00e-10	0.00	0.00	10 - 41000
6	Si⁺ + HC₄H → C₄H⁺ + SiH	1.60e-9	0.00	0.00	10 - 41000
7	SiH₂ + PHOTON → SiH + H	5.00e-11	0.00	1.70	10 - 41000
8	SiH₃ + PHOTON → SiH + H₂	3.00e-11	0.00	1.70	10 - 41000
9	SiH₄ + PHOTON → SiH + H + H₂	1.60e-10	0.00	2.20	10 - 41000

	Reaction	α	β	γ	T_l - T_u (K)
1	H⁺ + SiH → SiH⁺ + H	1.70e-9	0.00	0.00	10 - 300
2	SiH + S⁺ → S + SiH⁺	4.20e-10	0.00	0.00	10 - 41000
3	SiH + CRPHOT → Si + H	1.30e-17	0.00	250.00	10 - 41000
4	C⁺ + SiH → SiC⁺ + H	1.10e-9	0.00	0.00	10 - 41000
5	CH₃⁺ + SiH → SiCH₂⁺ + H₂	1.00e-9	0.00	0.00	10 - 41000
6	H⁺ + SiH → Si⁺ + H₂	1.70e-9	0.00	0.00	10 - 41000
7	H₃⁺ + SiH → SiH₂⁺ + H₂	2.00e-9	0.00	0.00	10 - 41000
8	H₃O⁺ + SiH → SiH₂⁺ + H₂O	9.70e-10	0.00	0.00	10 - 41000
9	HCO⁺ + SiH → SiH₂⁺ + CO	8.70e-10	0.00	0.00	10 - 41000
10	He⁺ + SiH → Si⁺ + He + H	1.80e-9	0.00	0.00	10 - 41000
11	OH⁺ + SiH → SiH₂⁺ + O	1.00e-9	0.00	0.00	10 - 41000
12	SiH + S⁺ → SiS⁺ + H	4.20e-10	0.00	0.00	10 - 41000
13	C + SiH → SiC + H	6.59e-11	0.00	0.00	10 - 300
14	N + SiH → SiN + H	1.66e-10	-0.09	0.00	10 - 300
15	O + SiH → SiO + H	1.00e-10	0.00	0.00	10 - 300
16	SiH + PHOTON → Si + H	2.80e-9	0.00	1.60	10 - 41000

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