Ethylenediamine, protonated
- Formula: C2H9N+
- Molecular weight: 47.0990
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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
(C2H9N+ • 2) +
= (C2H9N+ • 3
)
By formula: (C2H9N+ • 2C2H8N2) + C2H8N2 = (C2H9N+ • 3C2H8N2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 17.5 | kcal/mol | HPMS | Wincel and Herman, 1973 | gas phase; Entropy change is questionable |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 47.6 | cal/mol*K | HPMS | Wincel and Herman, 1973 | gas phase; Entropy change is questionable |
C2H9N+ + = (C2H9N+ •
)
By formula: C2H9N+ + H2O = (C2H9N+ • H2O)
Bond type: Hydrogen bond (positive ion to hydride)
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 7.8 | 293. | ES/HPMS | Blades, Klassen, et al., 1995 | 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.
Wincel and Herman, 1973
Wincel, H.; Herman, J.A.,
Photoionization Study of Clustering Reactions in Diamines: Ethane-1,2-diamine, Propane-1,2-diamine and Propane-1,3-diamine,
J. Chem. Soc. Faraday Trans., 1973, 69, 1797, https://doi.org/10.1039/f19736901797
. [all data]
Blades, Klassen, et al., 1995
Blades, A.T.; Klassen, J.S.; Kebarle, P.,
Free Energies of Hydration in the Gas Phase on the Anions of Some Oxo Acids of C, N, S, P, Cl and I,
J. Am. Chem. Soc., 1995, 117, 42, 10563, https://doi.org/10.1021/ja00147a019
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
T Temperature ΔrG° Free energy of reaction at standard conditions 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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