Sulfur dioxide, protonated
- Formula: HO2S+
- Molecular weight: 65.071
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Reaction 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.
Data compiled by: Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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Individual Reactions
HO2S+ + = (HO2S+ •
)
By formula: HO2S+ + O2S = (HO2S+ • O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 21.3 | kcal/mol | PHPMS | Szulejko and McMahon, 1992 | gas phase |
| ΔrH° | 23.2 | kcal/mol | PHPMS | McMahon and Kebarle, 1986 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 25.7 | cal/mol*K | PHPMS | Szulejko and McMahon, 1992 | gas phase |
| ΔrS° | 27.4 | cal/mol*K | PHPMS | McMahon and Kebarle, 1986 | gas phase |
HO2S+ + = (HO2S+ •
)
By formula: HO2S+ + CH3F = (HO2S+ • CH3F)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 25.3 | kcal/mol | PHPMS | McMahon and Kebarle, 1986 | gas phase; switching reaction(SO2H+)SO2 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 28.4 | cal/mol*K | PHPMS | McMahon and Kebarle, 1986 | gas phase; switching reaction(SO2H+)SO2 |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Szulejko and McMahon, 1992
Szulejko, J.; McMahon, T.B.,
personal communication, 1992. [all data]
McMahon and Kebarle, 1986
McMahon, T.B.; Kebarle, P.,
Strong hydrogen bonding in gas-phase ions: A high pressure mass spectrometric study of formation and energetics of methyl fluoride proton bound dimer,
J. Am. Chem. Soc., 1986, 108, 6502. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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