Monoethanolamine
- Formula: C2H7NO
- Molecular weight: 61.0831
- IUPAC Standard InChIKey: HZAXFHJVJLSVMW-UHFFFAOYSA-N
- CAS Registry Number: 141-43-5
- 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: Ethanol, 2-amino-; β-Aminoethanol; β-Aminoethyl alcohol; β-Hydroxyethylamine; Aminoethanol; Colamine; Ethanolamine; Ethylolamine; Glycinol; MEA; Olamine; Thiofaco M-50; 2-Amino-1-Ethanol; 2-Aminoethan-1-ol; 2-Aminoethanol; 2-Hydroxyethanamine; 2-Hydroxyethylamine; NH2CH2CH2OH; β-Ethanolamine; Aethanolamin; 2-Aminoaethanol; 2-Aminoetanolo; Etanolamina; Kolamin; Monoaethanolamin; UN 2491; USAF EK-1597; 2-Ethanolamine; 1-Amino-2-hydroxyethane; 2-Aminoethyl alcohol
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Condensed phase thermochemistry data
Go To: Top, Gas phase ion energetics 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -507.5 | kJ/mol | Ccb | Baroody and Carpenter, 1972 |
Gas phase ion energetics data
Go To: Top, 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
View reactions leading to C2H7NO+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.96 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 930.3 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 896.8 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.9 | PE | Ohno, Imai, et al., 1985 | LBLHLM |
8.96 | PE | Molder, Pikver, et al., 1983 | LBLHLM |
8.96 | PE | Koppel, Molder, et al., 1983 | LBLHLM |
9.88 | PE | Ohno, Imai, et al., 1985 | Vertical value; LBLHLM |
9.88 | PE | Kimura, Katsumata, et al., 1981 | Vertical value; LLK |
9.87 ± 0.06 | PE | Leavell, Steichen, et al., 1973 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CH4N+ | 9.49 ± 0.05 | CH2OH | EI | Holmes and Lossing, 1984 | LBLHLM |
CH4N+ | 9.49 | CH2OH | EI | Lossing, Lam, et al., 1981 | LLK |
References
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Baroody and Carpenter, 1972
Baroody, E.E.; Carpenter, G.A.,
Heats of formation of propellant compounds (U), Rpt. Naval Ordnance Systems Command Task No. 331-003/067-1/UR2402-001 for Naval Ordance Station, Indian Head, MD, 1972, 1-9. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Ohno, Imai, et al., 1985
Ohno, K.; Imai, K.; Harada, Y.,
Variations in reactivity of lone-pair electrons due to intramolecular hydrogen bonding as observed by penning ionization electron spectroscopy,
J. Am. Chem. Soc., 1985, 107, 8078. [all data]
Molder, Pikver, et al., 1983
Molder, U.H.; Pikver, R.J.; Koppel, I.A.,
Photoelectron spectra of molecules. 4. Amines,
Org. React. Tartu, 1983, 20, 355. [all data]
Koppel, Molder, et al., 1983
Koppel, I.A.; Molder, U.H.; Pikver, R.J.,
Photoelectron spectra of molecules. I. Alcohols,
Org. React. Tartu, 1983, 20, 45. [all data]
Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S.,
Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules
in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]
Leavell, Steichen, et al., 1973
Leavell, S.; Steichen, J.; Franklin, J.L.,
Photoelectron spectra of intramolecularly hydrogen bonded compounds,
J. Chem. Phys., 1973, 59, 4343. [all data]
Holmes and Lossing, 1984
Holmes, J.L.; Lossing, F.P.,
Heats of formation of organic radicals from appearance energies,
Int. J. Mass Spectrom. Ion Processes, 1984, 58, 113. [all data]
Lossing, Lam, et al., 1981
Lossing, F.P.; Lam, Y.-T.; Maccoll, A.,
Gas phase heats of formation of alkyl immonium ions,
Can. J. Chem., 1981, 59, 2228. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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