3-Penten-2-one, 4-hydroxy-
- Formula: C5H8O2
- Molecular weight: 100.1158
- IUPAC Standard InChI: InChI=1S/C5H8O2/c1-4(6)3-5(2)7/h3,6H,1-2H3/b4-3-
- IUPAC Standard InChIKey: POILWHVDKZOXJZ-ARJAWSKDSA-N
- CAS Registry Number: 1522-20-9
- Chemical structure:
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Reaction thermochemistry data
Go To: Top, 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: 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: C5H8O2 = C5H8O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -7.9 ± 0.4 | kJ/mol | Kin | Schweig, Vermeer, et al., 1974 | liquid phase; Photoelectron spectroscopy |
| ΔrH° | -10. ± 0.8 | kJ/mol | Eqk | Thompson and Allred, 1971 | liquid phase; solvent: Cyclohexane; NMR, UV |
| ΔrH° | -12. ± 0.8 | kJ/mol | Eqk | Calmon, 1969 | liquid phase |
=
By formula: C5H8O2 = C5H8O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 16.8 | kJ/mol | Eqk | Mines and Thompson, 1975 | 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.
Schweig, Vermeer, et al., 1974
Schweig, A.; Vermeer, H.; Weidner, U.,
A photoelectron spectroscopic study of keto-enol tautomerism in acetylacetones - a new application of photoelectron spectroscopy,
Chem. Phys. Lett., 1974, 26, 229-233. [all data]
Thompson and Allred, 1971
Thompson, D.W.; Allred, A.L.,
Keto-enol equilibria in 2,4-Pentanedione and 3,3-dideuterio-2,4-pentanedione,
J. Phys. Chem., 1971, 75, 433-435. [all data]
Calmon, 1969
Calmon, J.P.,
Thermodynamic functions of enolization of aliphatic β-diketones,
C. R. Acad. Sci. Paris, 1969, 268, 1435-1438. [all data]
Mines and Thompson, 1975
Mines, G.W.; Thompson, H.,
Infrared and photoelectron spectra, and keto-enol tautomerism of acetylacetones and acetoacetic esters,
Proc. Roy. Soc. London A, 1975, 342, 327-339. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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