Ethylamine, protonated
- Formula: C2H8N+
- Molecular weight: 46.0911
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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
(C2H8N+ • 2) +
= (C2H8N+ • 3
)
By formula: (C2H8N+ • 2C2H7N) + C2H7N = (C2H8N+ • 3C2H7N)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 17.3 | kcal/mol | HPMS | Zielinska and Wincel, 1974 | gas phase; Entropy change is questionable |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 42.6 | cal/mol*K | HPMS | Zielinska and Wincel, 1974 | gas phase; Entropy change is questionable |
(C2H8N+ • ) +
= (C2H8N+ • 2
)
By formula: (C2H8N+ • C2H7N) + C2H7N = (C2H8N+ • 2C2H7N)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 19.5 | kcal/mol | HPMS | Zielinska and Wincel, 1974 | gas phase; Entropy change is questionable |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 41.6 | cal/mol*K | HPMS | Zielinska and Wincel, 1974 | gas phase; Entropy change is questionable |
(C2H8N+ • 2) +
= (C2H8N+ • 3
)
By formula: (C2H8N+ • 2H2O) + H2O = (C2H8N+ • 3H2O)
Bond type: Hydrogen bond (positive ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 13.2 | kcal/mol | PHPMS | Lau and Kebarle, 1981 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 30.8 | cal/mol*K | PHPMS | Lau and Kebarle, 1981 | gas phase |
(C2H8N+ • ) +
= (C2H8N+ • 2
)
By formula: (C2H8N+ • H2O) + H2O = (C2H8N+ • 2H2O)
Bond type: Hydrogen bond (positive ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 14.7 | kcal/mol | PHPMS | Lau and Kebarle, 1981 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 29.7 | cal/mol*K | PHPMS | Lau and Kebarle, 1981 | gas phase |
C2H8N+ + = (C2H8N+ •
)
By formula: C2H8N+ + H2O = (C2H8N+ • H2O)
Bond type: Hydrogen bond (positive ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 17.5 | kcal/mol | PHPMS | Lau and Kebarle, 1981 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 25.9 | cal/mol*K | PHPMS | Lau and Kebarle, 1981 | gas phase |
C2H8N+ + = (C2H8N+ •
)
By formula: C2H8N+ + CO2 = (C2H8N+ • CO2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 11.2 | kcal/mol | PHPMS | Meot-Ner (Mautner), 1978 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 20.8 | cal/mol*K | PHPMS | Meot-Ner (Mautner), 1978 | gas phase |
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.
Zielinska and Wincel, 1974
Zielinska, T.J.; Wincel, H.,
Gas - Phase Solvation of Protonated Aliphatic Amines: Methyl, Ethyl, n - Propyl, and Iso - Propylamine,
Chem. Phys. Lett., 1974, 25, 354. [all data]
Lau and Kebarle, 1981
Lau, Y.K.; Kebarle, P.,
Hydrogen Bonding Solvent Effect on the Basicity of Primary Amines CH3NH2, C2H5NH2, AND CF3CH2NH2,
Can. J. Chem., 1981, 59, 1, 151, https://doi.org/10.1139/v81-024
. [all data]
Meot-Ner (Mautner), 1978
Meot-Ner (Mautner), M.,
Ion - Molecule Condensation Reactions: A Mechanism for Chemical Synthesis in Ionized Reducing Planetary Atmospheres,
Origins Life, 1978, 9, 2, 115, https://doi.org/10.1007/BF00931409
. [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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