H2SiO
- Formula: H2OSi
- Molecular weight: 46.1008
- CAS Registry Number: 22755-01-7
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Gas phase ion energetics 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.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Proton affinity (review) | 201. | kcal/mol | N/A | Hunter and Lias, 1998 | at O; HL |
| Proton affinity (review) | 78.4 | kcal/mol | N/A | Hunter and Lias, 1998 | at Si; HL |
| Quantity | Value | Units | Method | Reference | Comment |
| Gas basicity | 193.2 | kcal/mol | N/A | Hunter and Lias, 1998 | at O; HL |
| Gas basicity | 70.63 | kcal/mol | N/A | Hunter and Lias, 1998 | at Si; HL |
De-protonation reactions
HOSi- + = H2OSi
By formula: HOSi- + H+ = H2OSi
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 363.5 ± 8.1 | kcal/mol | G+TS | Gronert, O'Hair, et al., 1990 | gas phase; Between acetone, nitromethane; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 356.0 ± 8.0 | kcal/mol | IMRB | Gronert, O'Hair, et al., 1990 | gas phase; Between acetone, nitromethane; B |
References
Go To: Top, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Gronert, O'Hair, et al., 1990
Gronert, S.; O'Hair, R.A.J.; Prodnuk, S.; Suzle, D.; Damrauer, R.; DePuy, C.H.,
Gas-Phase Chemistry of the Silaformyl Anion, HSiO-,
J. Am. Chem. Soc., 1990, 112, 3, 997, https://doi.org/10.1021/ja00159a016
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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