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
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Gas phase ion energetics data
Go To: Top, Ion clustering 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:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 11.40 ± 0.01 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 580.0 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 550.3 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.91 ± 0.20 | NBIE | Compton, Reinhardt, et al., 1978 | G2MP2 calculations indicate an EA of ca. 0.6 eV; B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
11.404 ± 0.014 | PI | Clay, Walters, et al., 1994 | LL |
11.76 ± 0.02 | PI | Wang and Leroi, 1983 | LBLHLM |
11.7 | PE | Bock, Wittmann, et al., 1982 | LBLHLM |
11.82 ± 0.02 | EI | Marriott and Craggs, 1956 | RDSH |
11.89 ± 0.10 | EI | Jacobson, Steigman, et al., 1956 | RDSH |
12.3 ± 0.3 | EI | Dibeler, Reese, et al., 1956 | RDSH |
12.4 | PE | Bock, Wittmann, et al., 1982 | Vertical value; LBLHLM |
12.08 ± 0.05 | PE | Cvitas, Gusten, et al., 1977 | Vertical value; LLK |
12.10 | PE | Uehara, Saito, et al., 1973 | Vertical value; LLK |
12.0 | PE | Doucet, Sauvageau, et al., 1973 | Vertical value; LLK |
12.12 ± 0.02 | PE | Cradock, Ebsworth, et al., 1973 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
Br+ | 15.69 ± 0.02 | ? | EI | Clay, Walters, et al., 1994 | LL |
Br+ | 16.7 ± 0.1 | ? | EI | Marriott and Craggs, 1956 | RDSH |
C+ | 33. ± 1. | ? | EI | Dibeler, Reese, et al., 1956 | RDSH |
CBrF2+ | 14.01 ± 0.06 | F | PI | Clay, Walters, et al., 1994 | LL |
CF2Br+ | 15.0 ± 0.1 | F | EI | Marriott and Craggs, 1956 | RDSH |
CF2Br+ | 15.0 ± 0.7 | F | EI | Dibeler, Reese, et al., 1956 | RDSH |
CF+ | 22.9 ± 0.5 | ? | EI | Dibeler, Reese, et al., 1956 | RDSH |
CF2+ | 18.02 ± 0.13 | ? | PI | Clay, Walters, et al., 1994 | LL |
CF2+ | 18. ± 0. | ? | EI | Marriott and Craggs, 1956 | RDSH |
CF3+ | 11.56 ± 0.02 | Br | PI | Clay, Walters, et al., 1994 | LL |
CF3+ | 11.71 | Br | PI | Noutary, 1968 | RDSH |
F+ | 29. ± 1. | ? | EI | Dibeler, Reese, et al., 1956 | RDSH |
Ion clustering 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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
+ = CBr2F3-
By formula: Br- + CBrF3 = CBr2F3-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 58.16 ± 0.84 | kJ/mol | TDAs | Bogdanov and McMahon, 2006 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 30.5 | kJ/mol | TDAs | Bogdanov and McMahon, 2006 | gas phase; B |
By formula: CH3+ + CBrF3 = (CH3+ • CBrF3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 224. | kJ/mol | PHPMS | McMahon, Heinis, et al., 1988 | gas phase; switching reaction(CH3+)N2, Entropy change calculated or estimated, uses MCA(N2) = 202. kJ/mol; Foster, Williamson, et al., 1974; M |
+ = CBrClF3-
By formula: Cl- + CBrF3 = CBrClF3-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 69.04 ± 0.84 | kJ/mol | TDAs | Bogdanov and McMahon, 2006 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 38.5 | kJ/mol | TDAs | Bogdanov and McMahon, 2006 | gas phase; B |
Mass spectrum (electron ionization)
Go To: Top, Gas phase ion energetics data, Ion clustering 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
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
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 |
References
Go To: Top, Gas phase ion energetics data, Ion clustering 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.
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]
Compton, Reinhardt, et al., 1978
Compton, R.N.; Reinhardt, P.W.; Cooper, C.D.,
Collisional ionization between alkali atoms and some methane derivatives: Electron affinities for CH3NO2, CF3I, and CF3Br,
J. Chem. Phys., 1978, 68, 4360. [all data]
Clay, Walters, et al., 1994
Clay, J.T.; Walters, E.A.; Grover, J.R.; Willcox, M.V.,
Photoionization of gas-phase bromotrifluoromethane and its comlexes with methanol: State dependence of intracluster reactions,
J. Chem. Phys., 1994, 101, 2069. [all data]
Wang and Leroi, 1983
Wang, F.C.-Y.; Leroi, G.E.,
Photoionization and fragmentation of halogenated methanes,
Ann. Isr. Phys. Soc., 1983, 6, 210. [all data]
Bock, Wittmann, et al., 1982
Bock, H.; Wittmann, J.; Mintzer, J.; Russow, J.,
Ni/Pd-katalysierte gasphasen-bromierung von trifluormethan,
Chem. Ber., 1982, 115, 2346. [all data]
Marriott and Craggs, 1956
Marriott, J.; Craggs, J.D.,
Ionization and dissociation by electron impact. I. Trifluoromethyl halides,
J. Electron., 1956, 1, 405. [all data]
Jacobson, Steigman, et al., 1956
Jacobson, A.; Steigman, J.; Strakna, R.A.; Friedland, S.S.,
Appearance potential study of CBrF3,
J. Chem. Phys., 1956, 24, 637. [all data]
Dibeler, Reese, et al., 1956
Dibeler, V.H.; Reese, R.M.; Mohler, F.L.,
Ionization and dissociation of the trifluoromethyl halides by electron impact,
J. Res. NBS, 1956, 57, 113. [all data]
Cvitas, Gusten, et al., 1977
Cvitas, J.; Gusten, H.; Klasinc, L.; Novadj, I.; Vancik, H.,
Photoelectron spectra of bromo- iodotrifluoromethane,
Z. Naturforsch. A:, 1977, 32, 1528. [all data]
Uehara, Saito, et al., 1973
Uehara, Y.; Saito, N.; Yonezawa, T.,
Ionization potentials of trifluoromethyl and methyl halides by photoelectron spectroscopy and calculations by extended Hucket and CNDO/2 methods,
Chem. Lett., 1973, 495. [all data]
Doucet, Sauvageau, et al., 1973
Doucet, J.; Sauvageau, P.; Sandorfy, C.,
Vacuum ultraviolet and photoelectron spectra of fluoro-chloro derivatives of methane,
J. Chem. Phys., 1973, 58, 3708. [all data]
Cradock, Ebsworth, et al., 1973
Cradock, S.; Ebsworth, E.A.V.; Whiteford, R.A.,
Photoelectron spectra of some simple fluorosilanes,
J. Chem. Soc. Dalton Trans., 1973, 22, 2401. [all data]
Noutary, 1968
Noutary, C.J.,
Mass spectrometric study of some fluorocarbons and trifluoromethyl halides,
J.Res. NBS, 1968, 72A, 479. [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]
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]
Notes
Go To: Top, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), References
- Symbols used in this document:
AE Appearance energy EA Electron affinity IE (evaluated) Recommended ionization energy ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.