Silicon ion (1+)
- Formula: Si+
- Molecular weight: 28.0850
- IUPAC Standard InChI: InChI=1S/Si/q+1
- IUPAC Standard InChIKey: FSLGCYNKXXIWGJ-UHFFFAOYSA-N
- CAS Registry Number: 14067-07-3
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Silicon cation
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Gas phase thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°gas,1 bar | 39.063 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in March, 1983 |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Robert C. Dunbar
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
( • 2
) +
= (
• 3
)
By formula: (Si+ • 2CH3) + CH3 = (Si+ • 3CH3)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 122.7 ± 6.0 | kcal/mol | CIDT,BIRD | Lin, Dunbar, et al., 1996 |
( • 3
) +
= (
• 4
)
By formula: (Si+ • 3CH3) + CH3 = (Si+ • 4CH3)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 15.9 ± 1.4 | kcal/mol | CIDT,BIRD | Lin, Dunbar, et al., 1996 |
( •
) +
= (
• 2
)
By formula: (Si+ • CH3) + CH3 = (Si+ • 2CH3)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 29. ± 12. | kcal/mol | CIDT,BIRD | Lin, Dunbar, et al., 1996 |
+
= (
•
)
By formula: Si+ + CH3 = (Si+ • CH3)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 98.7 ± 1.4 | kcal/mol | CIDT,BIRD | Lin, Dunbar, et al., 1996 |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Lin, Dunbar, et al., 1996
Lin, C.-Y.; Dunbar, R.C.; Haynes, C.L.; Armentrout, P.B.; Tonner, D.S.; McMahon, T.J.,
The Dissociation Thermochemistry of Tetramethylsilane Ion. Comparative Determination by Thermal Dissociation and Threshold Collisional Dissociation,
J. Phys. Chem., 1996, 100, 50, 19659, https://doi.org/10.1021/jp962523s
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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