SiH₂

Silylene
Flags: RATE12
Empirical: H₂Si
Mass: 30 amu
Dipole moment: 0.180 D
Heat of formation: 289.0 kJ mol^-1
Added to system: 2003-05-06 06:43:21

6 SiH₂ formation reactions

	Reaction	α	β	γ	T_l - T_u (K)
1	SiH₃ + CRPHOT → SiH₂ + H	1.30e-17	0.00	750.00	10 - 41000
2	SiH₄ + CRPHOT → SiH₂ + H₂	1.30e-17	0.00	750.00	10 - 41000
3	SiH₃⁺ + e^- → SiH₂ + H	1.50e-7	-0.50	0.00	10 - 300
4	SiH₄⁺ + e^- → SiH₂ + H₂	1.50e-7	-0.50	0.00	10 - 300
5	SiH₃ + PHOTON → SiH₂ + H	3.00e-11	0.00	1.70	10 - 41000
6	SiH₄ + PHOTON → SiH₂ + H₂	4.80e-10	0.00	2.20	10 - 41000

	Reaction	α	β	γ	T_l - T_u (K)
1	C⁺ + SiH₂ → SiH₂⁺ + C	1.00e-9	0.00	0.00	10 - 300
2	H⁺ + SiH₂ → SiH₂⁺ + H	1.50e-9	0.00	0.00	10 - 300
3	SiH₂ + CRPHOT → SiH + H	1.30e-17	0.00	750.00	10 - 41000
4	C⁺ + SiH₂ → HCSi⁺ + H	1.00e-9	0.00	0.00	10 - 41000
5	C⁺ + SiH₂ → SiC⁺ + H₂	1.00e-9	0.00	0.00	10 - 41000
6	H⁺ + SiH₂ → SiH⁺ + H₂	1.50e-9	0.00	0.00	10 - 41000
7	H₃⁺ + SiH₂ → SiH₃⁺ + H₂	2.00e-9	0.00	0.00	10 - 41000
8	H₃O⁺ + SiH₂ → SiH₃⁺ + H₂O	2.00e-9	0.00	0.00	10 - 41000
9	HCO⁺ + SiH₂ → SiH₃⁺ + CO	2.00e-9	0.00	0.00	10 - 41000
10	He⁺ + SiH₂ → Si⁺ + He + H₂	1.00e-9	0.00	0.00	10 - 41000
11	He⁺ + SiH₂ → SiH⁺ + He + H	1.00e-9	0.00	0.00	10 - 41000
12	C + SiH₂ → HCSi + H	1.00e-10	0.00	0.00	10 - 300
13	N + SiH₂ → HNSi + H	8.00e-11	0.17	0.00	10 - 300
14	O + SiH₂ → SiO + H₂	8.00e-11	0.00	0.00	10 - 300
15	O + SiH₂ → SiO + H + H	1.20e-10	0.00	0.00	10 - 300
16	SiH₂ + PHOTON → SiH₂⁺ + e^-	1.00e-9	0.00	2.30	10 - 41000
17	SiH₂ + PHOTON → SiH + H	5.00e-11	0.00	1.70	10 - 41000

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

SiH2