18-Crown-6 ether, protonated
- Formula: C12H25O6+
- Molecular weight: 265.3228
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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
C12H25O6+ + = (C12H25O6+ •
)
By formula: C12H25O6+ + H2O = (C12H25O6+ • H2O)
Bond type: Hydrogen bonds with polydentate bonding in positive ions
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 110. | kJ/mol | PHPMS | Sharma and Kebarle, 1984 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 145. | J/mol*K | PHPMS | Sharma and Kebarle, 1984 | gas phase |
C12H25O6+ + = (C12H25O6+ •
)
By formula: C12H25O6+ + CH4O = (C12H25O6+ • CH4O)
Bond type: Hydrogen bonds with polydentate bonding in positive ions
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 83.7 | kJ/mol | PHPMS | Sharma and Kebarle, 1984 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 123. | J/mol*K | PHPMS | Sharma and Kebarle, 1984 | 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.
Sharma and Kebarle, 1984
Sharma, R.B.; Kebarle, P.,
Stabilites and Hydrogen Bonding in Complexes of H3O+ and CH3OH2+ with Crown Ethers, from Measurements of Gas - Phase Ion - Molecule Equilibria,
J. Am. Chem. Soc., 1984, 106, 14, 3913, https://doi.org/10.1021/ja00326a005
. [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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