SiH₂⁺

Silylene ion
Flags: RATE12
Empirical: H₂Si⁺
Mass: 30 amu
Heat of formation: 1155.2 kJ mol^-1
Added to system: 2003-05-06 06:43:21

12 SiH₂⁺ formation reactions

	Reaction	α	γ	T_l - T_u (K)
1	C⁺ + SiH₂ → SiH₂⁺ + C	1.00e-9	0.00	10 - 300
2	H⁺ + SiH₂ → SiH₂⁺ + H	1.50e-9	0.00	10 - 300
3	C₂H₂⁺ + SiH₄ → SiH₂⁺ + C₂H₄	1.65e-10	0.00	10 - 41000
4	C₂H₄⁺ + SiH₄ → SiH₂⁺ + CH₃CH₃	1.96e-10	0.00	10 - 41000
5	H⁺ + SiH₃ → SiH₂⁺ + H₂	1.50e-9	0.00	10 - 41000
6	H₃⁺ + SiH → SiH₂⁺ + H₂	2.00e-9	0.00	10 - 41000
7	H₃O⁺ + SiH → SiH₂⁺ + H₂O	9.70e-10	0.00	10 - 41000
8	HCO⁺ + SiH → SiH₂⁺ + CO	8.70e-10	0.00	10 - 41000
9	He⁺ + SiH₃ → SiH₂⁺ + He + H	1.00e-9	0.00	10 - 41000
10	OH⁺ + SiH → SiH₂⁺ + O	1.00e-9	0.00	10 - 41000
11	SiH₂ + PHOTON → SiH₂⁺ + e^-	1.00e-9	2.30	10 - 41000
12	H₂ + Si⁺ → SiH₂⁺ + PHOTON	3.00e-18	0.00	10 - 300

	Reaction	α	β	T_l - T_u (K)
1	SiH₂⁺ + e^- → Si + H₂	1.50e-7	-0.50	10 - 300
2	SiH₂⁺ + e^- → Si + H + H	2.00e-7	-0.50	10 - 300
3	SiH₂⁺ + e^- → SiH + H	1.50e-7	-0.50	10 - 300
4	C + SiH₂⁺ → HCSi⁺ + H	1.10e-9	0.00	10 - 41000
5	N + SiH₂⁺ → HNSi⁺ + H	1.00e-10	0.00	10 - 41000
6	O + SiH₂⁺ → SiOH⁺ + H	6.30e-10	0.00	10 - 41000
7	SiH₂⁺ + O₂ → SiOH⁺ + OH	2.40e-11	0.00	10 - 41000
8	SiH₂⁺ + S → HSiS⁺ + H	1.10e-9	0.00	10 - 41000

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

SiH2+