2-Butanamine, N-(1-methylpropyl)-
- Formula: C8H19N
- Molecular weight: 129.2432
- IUPAC Standard InChI: InChI=1S/C8H19N/c1-5-7(3)9-8(4)6-2/h7-9H,5-6H2,1-4H3
- IUPAC Standard InChIKey: OBYVIBDTOCAXSN-UHFFFAOYSA-N
- CAS Registry Number: 626-23-3
- 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. - Other names: Di-sec-butylamine; Bis(1-methylpropyl)amine; (sec-C4H9)2NH; MPBA; N-(1-Methylpropyl)-2-butanamine; 1-Propanamine, 1-methyl, N-(1-methylpropyl); Di-sec.-butylamine
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Phase change 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔvapH° | 44.1 ± 1.5 | kJ/mol | V | Ribeiro da Silva, Ribeiro da Silva, et al., 1997 | ALS |
| ΔvapH° | 44.1 | kJ/mol | N/A | Ribeiro da Silva, Ribeiro da Silva, et al., 1997 | DRB |
| ΔvapH° | 41.3 ± 0.3 | kJ/mol | I | Franks and Watson, 1969 | Based on data from 273. to 333. K.; AC |
Gas phase ion energetics data
Go To: Top, Phase change 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
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Proton affinity (review) | 980.7 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
| Quantity | Value | Units | Method | Reference | Comment |
| Gas basicity | 947.5 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 7.6 | PE | Aue and Bowers, 1979 | LLK |
Gas Chromatography
Go To: Top, Phase change 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, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Packed | Apiezon L | 100. | 837. | Golovnya, Zhuravleva, et al., 1982 | Chromosorb G AW (80-100 mesh); Column length: 2.7 m |
References
Go To: Top, Phase change 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.
Ribeiro da Silva, Ribeiro da Silva, et al., 1997
Ribeiro da Silva, M.A.V.; Ribeiro da Silva, M.D.M.C.; Luisa, M.; Gomes, A.C.N.; Johnson, M.; Pilcher, G.,
Enthalpies of combustion of di-n-propylamine, diisopropylamine, diisobutylamine, and di-sec-butylamine,
J. Chem. Thermodyn., 1997, 29, 1025-1030. [all data]
Franks and Watson, 1969
Franks, F.; Watson, B.,
Calorimetric study of dilute aqueous solutions of dialkylamines: hydration of alkyl groups,
Trans. Faraday Soc., 1969, 65, 2339, https://doi.org/10.1039/tf9696502339
. [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]
Aue and Bowers, 1979
Aue, D.H.; Bowers, M.T.,
Chapter 9. Stabilities of positive ions from equilibrium gas phase basicity measurements
in Ions Chemistry,, ed. M.T. Bowers, 1979. [all data]
Golovnya, Zhuravleva, et al., 1982
Golovnya, R.V.; Zhuravleva, I.L.; Svetlova, I.; Terenina, M.B.; Gutnik, S.B.,
Calculation of gas chromatographic retention indices of secondary amines from structural increments,
Zh. Anal. Khim., 1982, 37, 294-300. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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