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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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, Gas Chromatography, 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: Robert C. Dunbar
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: Na+ + C2H7NO = (Na+ • C2H7NO)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 41.8 ± 1.7 | kcal/mol | CIDT | Moision and Armentrout, 2002 |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, Gas Chromatography, 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) | 222.3 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 214.3 | kcal/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 |
Gas Chromatography
Go To: Top, Reaction thermochemistry data, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | PEG-2000 | 150. | 1402. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PEG-2000 | 152. | 1470. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PEG-2000 | 179. | 1450. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PEG-2000 | 180. | 1411. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PEG-2000 | 200. | 1413. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Packed | PEG-2000 | 200. | 1427. | Anderson, Jurel, et al., 1973 | He, Celite 545 (44-60 mesh); Column length: 3. m |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-101 | 698. | Zenkevich, 2005 | 25. m/0.20 mm/0.10 μm, N2/He, 6. K/min; Tstart: 50. C; Tend: 250. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SPB-1 | 643. | Strete, Ruprah, et al., 1992 | 60. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C |
Capillary | SPB-1 | 680. | Strete, Ruprah, et al., 1992 | 60. m/0.53 mm/5.0 μm, Helium; Program: not specified |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Moision and Armentrout, 2002
Moision, R.M.; Armentrout, P.B.,
Experimental and Theoretical Dissection of Sodium Cation/Glycine Interactions,
J. Phys. Chem A, 2002, 106, 43, 10350, https://doi.org/10.1021/jp0216373
. [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]
Anderson, Jurel, et al., 1973
Anderson, A.; Jurel, S.; Shymanska, M.; Golender, L.,
Gas-liquid chromatography of some aliphatic and heterocyclic mono- and pollyfunctional amines. VII. Retention indices of amines in some polar and unpolar stationary phases,
Latv. PSR Zinat. Akad. Vestis Kim. Ser., 1973, 1, 51-63. [all data]
Zenkevich, 2005
Zenkevich, I.G.,
Experimentally measured retention indices., 2005. [all data]
Strete, Ruprah, et al., 1992
Strete, P.J.; Ruprah, M.; Ramsey, J.D.; Flanagan, R.J.,
Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning,
Analyst, 1992, 117, 7, 1111-1127, https://doi.org/10.1039/an9921701111
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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