Ethylamine
- Formula: C2H7N
- Molecular weight: 45.0837
- IUPAC Standard InChI: InChI=1S/C2H7N/c1-2-3/h2-3H2,1H3
- IUPAC Standard InChIKey: QUSNBJAOOMFDIB-UHFFFAOYSA-N
- CAS Registry Number: 75-04-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Isotopologues:
- Other names: Ethanamine; Aminoethane; Monoethylamine; 1-Aminoethane; C2H5NH2; Aethylamine; Etilamina; Etyloamina; UN 1036
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -57.7 | kJ/mol | N/A | Lemoult, 1907 | Value computed using ΔfHliquid° value of -84.5 kj/mol from Lemoult, 1907 and ΔvapH° value of 26.8±2 kj/mol from trc clapeyron eqn. |
Condensed phase 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -84.5 | kJ/mol | Ccb | Lemoult, 1907 | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -1715. | kJ/mol | Ccb | Lemoult, 1907 |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: C3H9Si+ + C2H7N = (C3H9Si+ • C2H7N)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 240. | kJ/mol | PHPMS | Li and Stone, 1990 | gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H5COOC2H5; Wojtyniak and Stone, 1986; M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 164. | J/mol*K | PHPMS | Li and Stone, 1990 | gas phase; switching reaction,Thermochemical ladder((CH3)3Si+)C6H5COOC2H5; Wojtyniak and Stone, 1986; M |
By formula: (C2H8N+ • 2C2H7N) + C2H7N = (C2H8N+ • 3C2H7N)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 72.4 | kJ/mol | HPMS | Zielinska and Wincel, 1974 | gas phase; Entropy change is questionable; M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 178. | J/mol*K | HPMS | Zielinska and Wincel, 1974 | gas phase; Entropy change is questionable; M |
By formula: (C2H8N+ • C2H7N) + C2H7N = (C2H8N+ • 2C2H7N)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 81.6 | kJ/mol | HPMS | Zielinska and Wincel, 1974 | gas phase; Entropy change is questionable; M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 174. | J/mol*K | HPMS | Zielinska and Wincel, 1974 | gas phase; Entropy change is questionable; M |
C2H6N- + =
By formula: C2H6N- + H+ = C2H7N
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1671. ± 4.6 | kJ/mol | G+TS | MacKay, Hemsworth, et al., 1976 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1638.9 ± 2.9 | kJ/mol | IMRE | MacKay, Hemsworth, et al., 1976 | gas phase; B |
2 =
+
By formula: 2C2H7N = CH5N + C3H9N
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -13.2 | kJ/mol | Eqk | Issoire and Long, 1960 | gas phase; ALS |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lemoult, 1907
Lemoult, M.P.,
Recherches theoriques et experimentales sur les chaleurs de combustion et de formation des composes organiques,
Ann. Chim. Phys., 1907, 12, 395-432. [all data]
Li and Stone, 1990
Li, X.; Stone, A.J.,
Gas-Phase (CH3)3Si+ Affinities of Alkylamines and Proton Affinities of Trimethylsilyl Alkylamines,
Int. J. Mass Spectrom. Ion Proc., 1990, 101, 2-3, 149, https://doi.org/10.1016/0168-1176(90)87008-5
. [all data]
Wojtyniak and Stone, 1986
Wojtyniak, A.C.M.; Stone, A.J.,
A High-Pressure Mass Spectrometric Study of the Bonding of Trimethylsilylium to Oxygen and Aromatic Bases,
Can. J. Chem., 1986, 74, 59. [all data]
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]
MacKay, Hemsworth, et al., 1976
MacKay, G.J.; Hemsworth, R.S.; Bohme, D.K.,
Absolute gas-phase acidities of CH3NH2, C2H5NH2, (CH3)2NH, and (CH3)3N,
Can. J. Chem., 1976, 54, 1624. [all data]
Issoire and Long, 1960
Issoire, J.; Long, C.,
Etude de la thermodynamique chimique de la reaction de formation des methylamines,
Bull. Soc. Chim. France, 1960, 2004-2012. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions 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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