Bromotrifluoromethane

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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 ± 0.01eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)580.0kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity550.3kJ/molN/AHunter and Lias, 1998HL

Electron affinity determinations

EA (eV) Method Reference Comment
0.91 ± 0.20NBIECompton, Reinhardt, et al., 1978G2MP2 calculations indicate an EA of ca. 0.6 eV; B

Ionization energy determinations

IE (eV) Method Reference Comment
11.404 ± 0.014PIClay, Walters, et al., 1994LL
11.76 ± 0.02PIWang and Leroi, 1983LBLHLM
11.7PEBock, Wittmann, et al., 1982LBLHLM
11.82 ± 0.02EIMarriott and Craggs, 1956RDSH
11.89 ± 0.10EIJacobson, Steigman, et al., 1956RDSH
12.3 ± 0.3EIDibeler, Reese, et al., 1956RDSH
12.4PEBock, Wittmann, et al., 1982Vertical value; LBLHLM
12.08 ± 0.05PECvitas, Gusten, et al., 1977Vertical value; LLK
12.10PEUehara, Saito, et al., 1973Vertical value; LLK
12.0PEDoucet, Sauvageau, et al., 1973Vertical value; LLK
12.12 ± 0.02PECradock, Ebsworth, et al., 1973Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
Br+15.69 ± 0.02?EIClay, Walters, et al., 1994LL
Br+16.7 ± 0.1?EIMarriott and Craggs, 1956RDSH
C+33. ± 1.?EIDibeler, Reese, et al., 1956RDSH
CBrF2+14.01 ± 0.06FPIClay, Walters, et al., 1994LL
CF2Br+15.0 ± 0.1FEIMarriott and Craggs, 1956RDSH
CF2Br+15.0 ± 0.7FEIDibeler, Reese, et al., 1956RDSH
CF+22.9 ± 0.5?EIDibeler, Reese, et al., 1956RDSH
CF2+18.02 ± 0.13?PIClay, Walters, et al., 1994LL
CF2+18. ± 0.?EIMarriott and Craggs, 1956RDSH
CF3+11.56 ± 0.02BrPIClay, Walters, et al., 1994LL
CF3+11.71BrPINoutary, 1968RDSH
F+29. ± 1.?EIDibeler, Reese, et al., 1956RDSH

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

Bromine anion + Bromotrifluoromethane = CBr2F3-

By formula: Br- + CBrF3 = CBr2F3-

Quantity Value Units Method Reference Comment
Δr58.16 ± 0.84kJ/molTDAsBogdanov and McMahon, 2006gas phase; B
Quantity Value Units Method Reference Comment
Δr30.5kJ/molTDAsBogdanov and McMahon, 2006gas phase; B

Methyl cation + Bromotrifluoromethane = (Methyl cation • Bromotrifluoromethane)

By formula: CH3+ + CBrF3 = (CH3+ • CBrF3)

Quantity Value Units Method Reference Comment
Δr224.kJ/molPHPMSMcMahon, Heinis, et al., 1988gas phase; switching reaction(CH3+)N2, Entropy change calculated or estimated, uses MCA(N2) = 202. kJ/mol; Foster, Williamson, et al., 1974; M

Chlorine anion + Bromotrifluoromethane = CBrClF3-

By formula: Cl- + CBrF3 = CBrClF3-

Quantity Value Units Method Reference Comment
Δr69.04 ± 0.84kJ/molTDAsBogdanov and McMahon, 2006gas phase; B
Quantity Value Units Method Reference Comment
Δr38.5kJ/molTDAsBogdanov and McMahon, 2006gas 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

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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 Chemical Concepts
NIST MS number 191390

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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