2-Butenal
- Formula: C4H6O
- Molecular weight: 70.0898
- IUPAC Standard InChI: InChI=1S/C4H6O/c1-2-3-4-5/h2-4H,1H3
- IUPAC Standard InChIKey: MLUCVPSAIODCQM-UHFFFAOYSA-N
- CAS Registry Number: 4170-30-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Stereoisomers:
- Other names: Crotonaldehyde; Crotonal; Crotonic aldehyde; Crotylaldehyde; β-Methylacrolein; Propylene aldehyde; Krotonaldehyd; Rcra waste number U053; UN 1143; But-2-enal; 1-Formylpropene; 2-Butenaldehyde; NSC 56354
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Gas 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -109.7 ± 2.4 | kJ/mol | Ccb | Van-chin-syan, Kochubei, et al., 1996 | ALS |
| ΔfH°gas | -106.9 | kJ/mol | N/A | Tjebbes, 1960 | Value computed using ΔfHliquid° value of -144.1±0.4 kj/mol from Tjebbes, 1960 and ΔvapH° value of 37.2 kj/mol from Van-chin-syan, Kochubei, et al., 1996.; DRB |
| ΔfH°gas | -100.5 ± 1.5 | kJ/mol | Chyd | Dolliver, Gresham, et al., 1938 | Heat of formation derived by Cox and Pilcher, 1970; ALS |
References
Go To: Top, Gas phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Van-chin-syan, Kochubei, et al., 1996
Van-chin-syan, Yu.Ya.; Kochubei, V.V.; Sergeev, V.V.; Raevskii, Yu.A.; Gerasimchuk, S.I.; Kotovich, Kh.Z.,
Thermodynamic properties of some acids and aldehydes of the acrylic series,
Sov. J. Chem. Phys. (Engl. Transl.), 1996, 70, 1789-1794, In original 1932. [all data]
Tjebbes, 1960
Tjebbes, J.,
Heats of combustion of butannal and some related compounds,
Acta Chem. Scand., 1960, 14, 180-188. [all data]
Dolliver, Gresham, et al., 1938
Dolliver, M.A.; Gresham, T.L.; Kistiakowsky, G.B.; Smith, E.A.; Vaughan, W.E.,
Heats of organic reactions. VI. Heats of hydrogenation of some oxygen-containing compounds,
J. Am. Chem. Soc., 1938, 60, 440-450. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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