Propane, 2-bromo-
- Formula: C3H7Br
- Molecular weight: 122.992
- IUPAC Standard InChIKey: NAMYKGVDVNBCFQ-UHFFFAOYSA-N
- CAS Registry Number: 75-26-3
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Isopropyl bromide; 2-Bromopropane; iso-C3H7Br; sec-Propyl bromide; UN 2344
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Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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 | -95.6 ± 1.0 | kJ/mol | Chyd | Davies, Lacher, et al., 1965 | Reanalyzed by Cox and Pilcher, 1970, Original value = -95.02 kJ/mol |
ΔfH°gas | -98.5 ± 1.9 | kJ/mol | Eqk | Rozhnov and Andreevskii, 1962 | |
ΔfH°gas | -98.5 ± 1.9 | kJ/mol | Ccr | Bjellerup, 1961 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), 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:
L - Sharon G. Lias
Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 10.10 ± 0.02 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.13 | EST | Luo and Pacey, 1992 | LL |
10.12 | PE | Kimura, Katsumata, et al., 1981 | LLK |
10.07 | PI | Traeger, 1980 | LLK |
10.4 ± 0.1 | EI | Gross, 1972 | LLK |
10.12 ± 0.015 | PE | Hashmall and Heilbronner, 1970 | RDSH |
10.08 ± 0.01 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H5+ | 11.98 | H2+Br | PI | Traeger, 1980 | LLK |
C3H5+ | 12.23 ± 0.06 | H2+Br | EI | Holmes and Osborne, 1978 | LLK |
C3H7+ | 10.42 ± 0.01 | Br | PIPECO | Rosenstock, Buff, et al., 1982 | LBLHLM |
C3H7+ | 10.33 | Br | PI | Traeger, 1980 | LLK |
C3H7+ | 10.7 ± 0.1 | Br | EI | Gross, 1972 | LLK |
Mass spectrum (electron ionization)
Go To: Top, Gas phase 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
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW-4951 |
NIST MS number | 228307 |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Davies, Lacher, et al., 1965
Davies, J.; Lacher, J.R.; Park, J.D.,
Reaction heats of organic compounds. Part 4.-Heats of hydrogenation of n- and iso-Propyl bromides and chlorides,
Trans. Faraday Soc., 1965, 61, 2413-2416. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Rozhnov and Andreevskii, 1962
Rozhnov, A.M.; Andreevskii, D.N.,
Equilibrium in the system propene, hydrogen bromide, bromopropane,
Dokl. Akad. Nauk SSSR, 1962, 147, 388-391. [all data]
Bjellerup, 1961
Bjellerup, L.,
On the accuracy of heat of combustion data obtained with a precision moving-bomb calorimetric method for organic bromine compounds,
Acta Chem. Scand., 1961, 15, 121-140. [all data]
Luo and Pacey, 1992
Luo, Y.-R.; Pacey, P.D.,
Effects of alkyl substitution on ionization energies of alkanes and haloalkanes and on heats of formation of their molecular cations. Part 2. Alkanes and chloro-, bromo- and iodoalkanes,
Int. J. Mass Spectrom. Ion Processes, 1992, 112, 63. [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]
Traeger, 1980
Traeger, J.C.,
Photoionization mass spectrometry of the propyl halides,
Int. J. Mass Spectrom. Ion Phys., 1980, 32, 309. [all data]
Gross, 1972
Gross, M.L.,
Ion cyclotron resonance spectrometry. A means of evaluating 'kinetic shifts',
Org. Mass Spectrom., 1972, 6, 827. [all data]
Hashmall and Heilbronner, 1970
Hashmall, J.A.; Heilbronner, E.,
n-Ionization potentials of alkyl bromides,
Angew. Chem. Intern. Ed., 1970, 9, 305. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Holmes and Osborne, 1978
Holmes, J.L.; Osborne, A.D.,
Energy partitioning in the metastable fragmentation [C3H7]+ → [C3H5]+ + H2,
Org. Mass Spectrom., 1978, 13, 133. [all data]
Rosenstock, Buff, et al., 1982
Rosenstock, H.M.; Buff, R.; Ferreira, M.A.A.; Lias, S.G.; Parr, A.C.; Stockbauer, R.L.; Holmes, J.L.,
Fragmentation mechanism and energetics of some alkyl halide ions,
J. Am. Chem. Soc., 1982, 104, 2337. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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