Methane, bromochloro-
- Formula: CH2BrCl
- Molecular weight: 129.384
- IUPAC Standard InChIKey: JPOXNPPZZKNXOV-UHFFFAOYSA-N
- CAS Registry Number: 74-97-5
- 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: Bromochloromethane; Chlorobromomethane; Halon 1011; Monochloromonobromomethane; CH2ClBr; Methylene chlorobromide; MIL-B-4394-B; UN 1887; Fluorocarbon 1011; Methylene bromide chloride; NSC 7294
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Gas phase thermochemistry data
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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 | -5. ± 2. | kcal/mol | Eqk | Skorobogatov, Dymov, et al., 1996 |
Phase change data
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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 341. | K | N/A | American Tokyo Kasei, 1988 | BS |
Tboil | 342. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 185.2 | K | N/A | McDonald, Shrader, et al., 1959 | Uncertainty assigned by TRC = 0.05 K; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
10.0 | 241. | A | Stephenson and Malanowski, 1987 | Based on data from 226. to 341. K.; AC |
8.01 | 304. | N/A | McDonald, Shrader, et al., 1959, 2 | Based on data from 289. to 341. K. See also Kudchadker, Kudchadker, et al., 1979.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference |
---|---|---|---|---|
226.6 to 341. | 3.51506 | 895.556 | -86.447 | McDonald, Shrader, et al., 1959, 2 |
Reaction thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: John E. Bartmess
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
CHBrCl- + =
By formula: CHBrCl- + H+ = CH2BrCl
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 373.0 ± 3.1 | kcal/mol | G+TS | Born, Ingemann, et al., 2000 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 365.2 ± 3.0 | kcal/mol | IMRB | Born, Ingemann, et al., 2000 | gas phase |
Gas phase ion energetics data
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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:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 10.77 ± 0.01 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.77 | PE | Novak, Cvitas, et al., 1981 | LLK |
10.77 ± 0.01 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
10.75 ± 0.05 | EI | Harrison and Shannon, 1962 | RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CH2Cl+ | 11.6 ± 0.1 | Br | EI | Harrison and Shannon, 1962 | RDSH |
De-protonation reactions
CHBrCl- + =
By formula: CHBrCl- + H+ = CH2BrCl
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 373.0 ± 3.1 | kcal/mol | G+TS | Born, Ingemann, et al., 2000 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 365.2 ± 3.0 | kcal/mol | IMRB | Born, Ingemann, et al., 2000 | gas phase; B |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction 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.
Skorobogatov, Dymov, et al., 1996
Skorobogatov, G.A.; Dymov, B.P.; Nedozrelova, I.V.,
Equilibrium and rate constants of the reactions RBr←→R + Br and Br + RBr←→Br2 + R (R = CH2Cl, CHCl2, CCl3, and CBrF2) at 300-700°C,
Russ. J. Gen. Chem. (Engl. Transl.), 1996, 66, 1777-1785. [all data]
American Tokyo Kasei, 1988
American Tokyo Kasei,
TCI American Organic Chemical 88/89 Catalog, American Tokyo Kasei, Portland, OR, 1988, 1610. [all data]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]
McDonald, Shrader, et al., 1959
McDonald, R.A.; Shrader, S.A.; Stull, D.R.,
Vapor Pressures and Freezing Points of 30 Organics,
J. Chem. Eng. Data, 1959, 4, 311. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
McDonald, Shrader, et al., 1959, 2
McDonald, R.A.; Shrader, S.A.; Stull, D.R.,
Vapor Pressures and Freezing Points of Thirty Pure Organic Compounds.,
J. Chem. Eng. Data, 1959, 4, 4, 311-313, https://doi.org/10.1021/je60004a009
. [all data]
Kudchadker, Kudchadker, et al., 1979
Kudchadker, A.P.; Kudchadker, S.A.; Shukla, R.P.; Patnaik, P.R.,
Vapor pressures and boiling points of selected halomethanes,
J. Phys. Chem. Ref. Data, 1979, 8, 2, 499, https://doi.org/10.1063/1.555600
. [all data]
Born, Ingemann, et al., 2000
Born, M.; Ingemann, S.; Nibbering, N.M.M.,
Thermochemical properties of halogen-substituted methanes, methyl radicals, and carbenes in the gas phase,
Int. J. Mass Spectrom., 2000, 194, 2-3, 103-113, https://doi.org/10.1016/S1387-3806(99)00125-6
. [all data]
Novak, Cvitas, et al., 1981
Novak, I.; Cvitas, T.; Klasinc, L.; Gusten, H.,
Photoelectron spectra of some halogenomethanes,
J. Chem. Soc. Faraday Trans. 2, 1981, 77, 2049. [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]
Harrison and Shannon, 1962
Harrison, A.G.; Shannon, T.W.,
An electron impact study of chloromethyl and dichloromethyl derivatives,
Can. J. Chem., 1962, 40, 1730. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy Tboil Boiling point Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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