Dimethyl sulfoxide, protonated
- Formula: C2H7OS+
- Molecular weight: 79.141
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Ion clustering 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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Clustering reactions
C2H7OS+ + = (C2H7OS+ •
)
By formula: C2H7OS+ + C2H6OS = (C2H7OS+ • C2H6OS)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 30.8 | kcal/mol | PHPMS | Lau, Saluja, et al., 1980 | gas phase; switching reaction((CH3)2SOH+)(CH3)2CO |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 22.9 | cal/mol*K | PHPMS | Lau, Saluja, et al., 1980 | gas phase; switching reaction((CH3)2SOH+)(CH3)2CO |
(C2H7OS+ • ) +
= (C2H7OS+ • 2
)
By formula: (C2H7OS+ • C2H6OS) + C2H6OS = (C2H7OS+ • 2C2H6OS)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 21.3 | kcal/mol | PHPMS | Lau, Saluja, et al., 1980 | gas phase; Entropy change is questionable |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 10.9 | cal/mol*K | PHPMS | Lau, Saluja, et al., 1980 | gas phase; Entropy change is questionable |
C2H7OS+ + = (C2H7OS+ •
)
By formula: C2H7OS+ + C3H6O = (C2H7OS+ • C3H6O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 24.1 | kcal/mol | PHPMS | Lau, Saluja, et al., 1980 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 24.5 | cal/mol*K | PHPMS | Lau, Saluja, et al., 1980 | gas phase |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lau, Saluja, et al., 1980
Lau, Y.K.; Saluja, P.P.S.; Kebarle, P.,
The Proton in Dimethyl Sulfoxide and Acetone. Results from Gas - Phase Ion Equilibria Involving (Me2SO)nH+ and (Me2CO)nH+,
J. Am. Chem. Soc., 1980, 102, 25, 7429, https://doi.org/10.1021/ja00545a004
. [all data]
Notes
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- 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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