H3SiOH
- Formula: H4OSi
- Molecular weight: 48.1167
- CAS Registry Number: 14475-38-8
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Gas phase ion energetics data
Go To: Top, Vibrational and/or electronic energy levels, References, Notes
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) | 746.4 | kJ/mol | N/A | Hunter and Lias, 1998 | at O; HL |
| Quantity | Value | Units | Method | Reference | Comment |
| Gas basicity | 713.9 | kJ/mol | N/A | Hunter and Lias, 1998 | at O; HL |
De-protonation reactions
H3OSi- + = H4OSi
By formula: H3OSi- + H+ = H4OSi
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1500. ± 18. | kJ/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; Between CF3CH2OH, MeNO2; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1473. ± 18. | kJ/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; Between CF3CH2OH, MeNO2; B |
Vibrational and/or electronic energy levels
Go To: Top, Gas phase ion energetics 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: Marilyn E. Jacox
State: X
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| Si-O stretch | 859 | Ar | IR | Withnall and Andrews, 1985 | |||
Additional references: Jacox, 1994, page 311
References
Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, 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]
Damrauer, Simon, et al., 1991
Damrauer, R.; Simon, R.; Krempp, M.,
Effect of Substituents on the Gas-Phase Acidity of Silanols,
J. Am. Chem. Soc., 1991, 113, 12, 4431, https://doi.org/10.1021/ja00012a009
. [all data]
Withnall and Andrews, 1985
Withnall, R.; Andrews, L.,
Matrix reactions of silane and oxygen atoms. Infrared spectroscopic evidence for the silanol, silanone, and silanoic and silicic acid molecules,
J. Phys. Chem., 1985, 89, 15, 3261, https://doi.org/10.1021/j100261a019
. [all data]
Jacox, 1994
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, 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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