Bromotrifluoromethane
- Formula: CBrF3
- Molecular weight: 148.910
- IUPAC Standard InChIKey: RJCQBQGAPKAMLL-UHFFFAOYSA-N
- CAS Registry Number: 75-63-8
- 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: Methane, bromotrifluoro-; Bromofluoroform; F 13B1; Fluorocarbon 1301; Freon 13B1; FC 13B1; Halon 1301; Monobromotrifluoromethane; R 13B1; Trifluorobromomethane; Trifluoromethyl bromide; Trifluoromonobromomethane; CF3Br; Refrigerant 13B1; Carbon monobromide trifluoride; UN 1009; CBrF3; Daiflon 13B1; Flugex 13B1; Khladon 13B1
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -155.10 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1969 |
ΔfH°gas | -154.72 ± 0.70 | kcal/mol | Eqk | Coomber and Whittle, 1967 | Reanalyzed by Cox and Pilcher, 1970, Original value = -156.4 kcal/mol; ALS |
ΔfH°gas | -155.22 ± 0.76 | kcal/mol | Eqk | Lord, Goy, et al., 1967 | Reanalyzed by Cox and Pilcher, 1970, Original value = -154.1 kcal/mol; ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 71.181 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1969 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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Temperature (K) | 298. to 1100. | 1100. to 6000. |
---|---|---|
A | 9.145020 | 25.59030 |
B | 37.61231 | 0.136113 |
C | -32.90449 | -0.027583 |
D | 10.35390 | 0.001912 |
E | -0.101688 | -1.599050 |
F | -159.5700 | -167.1450 |
G | 71.83260 | 95.57280 |
H | -155.1000 | -155.1000 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in June, 1969 | Data last reviewed in June, 1969 |
Condensed 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: Eugene S. Domalski and Elizabeth D. Hearing
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
39.15 | 293. | Stolyarov and Chashkin, 1984 | T = 163 to 293 K. |
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 | 215.3 | K | N/A | PCR Inc., 1990 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 98.47 | K | N/A | McDonald, Shrader, et al., 1959 | Metastable crystal phase; Uncertainty assigned by TRC = 0.05 K; TRC |
Tfus | 98.72 | K | N/A | McDonald, Shrader, et al., 1959 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.05 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 340.08 | K | N/A | Higashi, Uematsu, et al., 1985 | Uncertainty assigned by TRC = 0.02 K; by disappearance of the meniscus; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 39.04 | atm | N/A | Higashi, Uematsu, et al., 1985 | Uncertainty assigned by TRC = 0.03 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 5.13 | mol/l | N/A | Higashi, Uematsu, et al., 1985 | Uncertainty assigned by TRC = 0.03 mol/l; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
4.25 | 291. | A | Stephenson and Malanowski, 1987 | Based on data from 276. to 340. K.; AC |
4.23 | 252. | A | Stephenson and Malanowski, 1987 | Based on data from 160. to 267. K.; AC |
4.57 | 180. | N/A | Kudchadker, Kudchadker, et al., 1979 | Based on data from 165. to 216. K.; 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 |
---|---|---|---|---|
129.5 to 215.4 | 4.57981 | 1018.31 | 7.086 | 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 as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
MS - José A. Martinho Simões
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
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: CH3+ + CBrF3 = (CH3+ • CBrF3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 53.6 | kcal/mol | PHPMS | McMahon, Heinis, et al., 1988 | gas phase; switching reaction(CH3+)N2, Entropy change calculated or estimated, uses MCA(N2) = 48.3 kcal/mol; Foster, Williamson, et al., 1974; M |
+ = CBrClF3-
By formula: Cl- + CBrF3 = CBrClF3-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.50 ± 0.20 | kcal/mol | TDAs | Bogdanov and McMahon, 2006 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 9.20 | kcal/mol | TDAs | Bogdanov and McMahon, 2006 | gas phase; B |
+ = CBr2F3-
By formula: Br- + CBrF3 = CBr2F3-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.90 ± 0.20 | kcal/mol | TDAs | Bogdanov and McMahon, 2006 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 7.28 | kcal/mol | TDAs | Bogdanov and McMahon, 2006 | gas phase; B |
C6F3MnO5 (cr) + 1.5 (g) = (cr) + 5 (g) + (g)
By formula: C6F3MnO5 (cr) + 1.5Br2 (g) = Br2Mn (cr) + 5CO (g) + CBrF3 (g)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -41.3 ± 0.7 | kcal/mol | HAL-HFC | Connor, Zafarani-Moattar, et al., 1982 | MS |
C7F3MnO6 (cr) + 1.5 (g) = (cr) + 6 (g) + (g)
By formula: C7F3MnO6 (cr) + 1.5Br2 (g) = Br2Mn (cr) + 6CO (g) + CBrF3 (g)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -38.6 ± 0.5 | kcal/mol | HAL-HFC | Connor, Zafarani-Moattar, et al., 1982 | MS |
By formula: BrCl + CClF3 = CBrF3 + Cl2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 10.69 ± 0.15 | kcal/mol | Eqk | Coomber and Whittle, 1967, 2 | gas phase; ALS |
By formula: I2 + CBrF3 = CF3I + BrI
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 9.55 ± 0.03 | kcal/mol | Eqk | Lord, Goy, et al., 1967 | gas phase; ALS |
By formula: CHF3 + Br2 = HBr + CBrF3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -3.3 | kcal/mol | Eqk | Corbett, Tarr, et al., 1963 | gas phase; At 298 K; ALS |
By formula: HBr + CBrF3 = CHF3 + Br2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 4.59 ± 0.25 | kcal/mol | Eqk | Coomber and Whittle, 1967 | gas phase; ALS |
By formula: C2F6 + Br2 = 2CBrF3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 3.66 ± 0.14 | kcal/mol | Eqk | Coomber and Whittle, 1967, 3 | gas phase; ALS |
IR Spectrum
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
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Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Sadtler Research Labs Under US-EPA Contract |
State | gas |
Mass spectrum (electron ionization)
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
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 | Chemical Concepts |
NIST MS number | 191390 |
Vibrational and/or electronic energy levels
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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: Takehiko Shimanouchi
Symmetry: C3ν Symmetry Number σ = 3
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
a1 | 1 | CF3 s-str | 1089 | C | 1089 VS | gas | 1082 p | gas | ||
a1 | 2 | CF3 s-deform | 760 | C | 760 VS | gas | 761 p | gas | ||
a1 | 3 | CBr str | 349 | C | 350 | gas | 349 p | gas | Estimated from overtone and combination bands | |
e | 4 | CF3 d-str | 1210 | C | 1210 VS | gas | 1207 dp | gas | ||
e | 5 | CF3 d-deform | 547 | C | 547 M | gas | 541 dp | gas | ||
e | 6 | CBr bend | 306 | C | 297 | gas | 306 dp | gas | Estimated from overtone and combination bands | |
Source: Shimanouchi, 1972
Notes
VS | Very strong |
M | Medium |
p | Polarized |
dp | Depolarized |
C | 3~6 cm-1 uncertainty |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Coomber and Whittle, 1967
Coomber, J.W.; Whittle, E.,
Bond dissociation energies from equilibrium studies. Part 1.-D(CF3-Br), D(C2F5-Br) and D(n-C3F7-Br),
Trans. Faraday Soc., 1967, 63, 608-619. [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]
Lord, Goy, et al., 1967
Lord, A.; Goy, C.A.; Pritchard, H.O.,
The heats of formation of trifluoromethyl chloride and bromide,
J. Phys. Chem., 1967, 71, 2705-2707. [all data]
Stolyarov and Chashkin, 1984
Stolyarov, N.N.; Chashkin, Yu.R.,
Heat capacity of liquid refrigerating agents R13, R23, R13B1, and RC318,
Kholod. Tekh., 1984, (2), 39-40. [all data]
PCR Inc., 1990
PCR Inc.,
Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 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]
Higashi, Uematsu, et al., 1985
Higashi, Y.; Uematsu, M.; Watanabe, K.,
Measurements of the Vapor-liquid Coexistence Curve and Determination of the Critical Parameters for Refrigerant 13B1,
Bull. JSME, 1985, 28, 2660-6. [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]
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]
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]
McMahon, Heinis, et al., 1988
McMahon, T.; Heinis, T.; Nicol, G.; Hovey, J.K.; Kebarle, P.,
Methyl Cation Affinities,
J. Am. Chem. Soc., 1988, 110, 23, 7591, https://doi.org/10.1021/ja00231a002
. [all data]
Foster, Williamson, et al., 1974
Foster, M.S.; Williamson, A.D.; Beauchamp, J.L.,
Photoionization mass spectrometry of trans-azomethane,
Int. J. Mass Spectrom. Ion Phys., 1974, 15, 429. [all data]
Bogdanov and McMahon, 2006
Bogdanov, B.; McMahon, T.B.,
Gas phase S(N)2 reactions of halide ions with trifluoromethyl halides: Front- and back-side attack vs. complex formation,
J. Phys. Chem. A, 2006, 110, 4, 1350-1363, https://doi.org/10.1021/jp0541011
. [all data]
Connor, Zafarani-Moattar, et al., 1982
Connor, J.A.; Zafarani-Moattar, M.T.; Bickerton, J.; El-Saied, N.I.; Suradi, S.; Carson, R.; Al Takkhin, G.; Skinner, H.A.,
Organomet., 1982, 1, 1166. [all data]
Coomber and Whittle, 1967, 2
Coomber, J.W.; Whittle, E.,
Bond dissociation energies from equilibrium studies. Part 3.-D(CF3-Cl), D(C2F5-Cl) and the enthalpy of formation of CF3Cl,
Trans. Faraday Soc., 1967, 63, 2656-2667. [all data]
Corbett, Tarr, et al., 1963
Corbett, P.; Tarr, A.M.; Whittle, E.,
Vapour-phase bromination of fluoroform and methane,
Trans. Faraday Soc., 1963, 59, 1609. [all data]
Coomber and Whittle, 1967, 3
Coomber, J.W.; Whittle, E.,
Bond dissociation energies from equilibrium studies. Part 2.-D(CF3-CF3) and enthalpy of formation of C2F6,
Trans. Faraday Soc., 1967, 63, 1394-1401. [all data]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume II,
J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Vibrational and/or electronic energy levels, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Pc Critical pressure S°gas,1 bar Entropy of gas at standard conditions (1 bar) Tboil Boiling point Tc Critical temperature 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 ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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