Ethenol
- Formula: C2H4O
- Molecular weight: 44.0526
- IUPAC Standard InChIKey: IMROMDMJAWUWLK-UHFFFAOYSA-N
- CAS Registry Number: 557-75-5
- 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. - Other names: vinyl alcohol
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Gas phase thermochemistry data
Go To: Top, Vibrational and/or electronic energy levels, 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -30.6 | kcal/mol | Ion | Turecek and Havlas, 1986 | |
ΔfH°gas | -29.8 ± 2.0 | kcal/mol | Ion | Holmes and Lossing, 1982 | |
ΔfH°gas | -26.5 ± 2.0 | kcal/mol | Ion | Holmes, Terlouw, et al., 1976 | Appearance potential |
Vibrational and/or electronic energy levels
Go To: Top, Gas 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 by: Marilyn E. Jacox
State: X
Additional references: Jacox, 1994, page 363; Jacox, 2003, page 337; Saito, 1976; Rodler and Bauder, 1984
Notes
w | Weak |
m | Medium |
s | Strong |
vs | Very strong |
H | (1/2)(2ν) |
References
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Turecek and Havlas, 1986
Turecek, F.; Havlas, Z.,
Thermochemistry of unstable enols: the O-(Cd)(H) group equivalent,
J. Org. Chem., 1986, 51, 4066-4067. [all data]
Holmes and Lossing, 1982
Holmes, J.L.; Lossing, F.P.,
Heats of formation of the ionic and neutral enols of acetaldehyde and acetone,
J. Am. Chem. Soc., 1982, 104, 2648-2649. [all data]
Holmes, Terlouw, et al., 1976
Holmes, J.L.; Terlouw, J.K.; Lossing, F.P.,
The thermochemistry of C2H4O.+ ions,
J. Phys. Chem., 1976, 80, 2860-2862. [all data]
Koga, Nakanaga, et al., 1991
Koga, Y.; Nakanaga, T.; Sugawara, K.; Watanabe, A.; Sugie, M.; Takeo, H.; Kondo, S.; Matsumura, C.,
Gas phase infrared spectrum of syn-vinyl alcohol produced by thermal decomposition of several alcohols and aldehydes,
J. Mol. Spectrosc., 1991, 145, 2, 315, https://doi.org/10.1016/0022-2852(91)90119-U
. [all data]
Joo, Merer, et al., 1999
Joo, D.-L.; Merer, A.J.; Clouthier, D.J.,
High-Resolution Fourier Transform Infrared Spectroscopy of Vinyl Alcohol: Rotational Analysis of the ν13 CH2 Wagging Fundamental at 817 cm-1,
J. Mol. Spectrosc., 1999, 197, 1, 68, https://doi.org/10.1006/jmsp.1999.7877
. [all data]
Hawkins and Andrews, 1983
Hawkins, M.; Andrews, L.,
Reactions of atomic oxygen with ethene in solid argon. The infrared spectrum of vinyl alcohol,
J. Am. Chem. Soc., 1983, 105, 9, 2523, https://doi.org/10.1021/ja00347a001
. [all data]
Rodler, Blom, et al., 1984
Rodler, M.; Blom, C.E.; Bauder, A.,
Infrared spectrum and general valence force field of syn-vinyl alcohol,
J. Am. Chem. Soc., 1984, 106, 14, 4029, https://doi.org/10.1021/ja00326a025
. [all data]
Jacox, 1994
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]
Jacox, 2003
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement B,
J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629
. [all data]
Saito, 1976
Saito, S.,
Microwave spectroscopic detection of vinyl alcohol, CH2«58875»CHOH,
Chem. Phys. Lett., 1976, 42, 3, 399, https://doi.org/10.1016/0009-2614(76)80638-0
. [all data]
Rodler and Bauder, 1984
Rodler, M.; Bauder, A.,
Structure of syn-vinyl alcohol determined by microwave spectroscopy,
J. Am. Chem. Soc., 1984, 106, 14, 4025, https://doi.org/10.1021/ja00326a024
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, 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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.