Carbon tetrabromide

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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:
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)10.31 ± 0.02eVN/AN/AL

Electron affinity determinations

EA (eV) Method Reference Comment
2.0598SIPage and Goode, 1969The Magnetron method, lacking mass analysis, is not considered reliable. G3MP2B3 calculations indicate an EA of ca. 1.4 eV.; B

Ionization energy determinations

IE (eV) Method Reference Comment
10.3 ± 0.2EIKime, Driscoll, et al., 1987LBLHLM
10.8 ± 0.3EIKaposi, Riedel, et al., 1976LLK
10.31 ± 0.02PIWerner, Tsai, et al., 1974LLK
10.54PEDixon, Murrell, et al., 1971Vertical value; LLK
10.39PEPotts, Lempka, et al., 1970Vertical value; RDSH
10.40PEGreen, Green, et al., 1970Vertical value; RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
Br+14.5 ± 0.5?EIKaposi, Riedel, et al., 1976LLK
Br+18.1 ± 0.2?EIThorburn, 1965RDSH
Br2+17.2 ± 0.3?EIKaposi, Riedel, et al., 1976LLK
Br2+13.3 ± 0.1?EIDeCorpo and Franklin, 1971LLK
C+23.0 ± 0.5?EIKaposi, Riedel, et al., 1976LLK
C+23.1 ± 0.4?EIThorburn, 1965RDSH
CBr+19.3 ± 0.43BrEIKaposi, Riedel, et al., 1976LLK
CBr+17.5 ± 0.2?EIThorburn, 1965RDSH
CBr+16.35 ± 0.13?EIReed and Snedden, 1958RDSH
CBr2+14.5 ± 0.3?EIKaposi, Riedel, et al., 1976LLK
CBr2+14.6 ± 0.3?EIThorburn, 1965RDSH
CBr2+12.30 ± 0.08?EIReed and Snedden, 1958RDSH
CBr3+11.4 ± 0.3BrEIKaposi, Riedel, et al., 1976LLK
CBr3+10.47 ± 0.02BrPIWerner, Tsai, et al., 1974LLK
CBr3+11.3 ± 0.2BrEIThorburn, 1965RDSH
CBr3+9.95 ± 0.05BrEIReed and Snedden, 1958RDSH


Go To: Top, 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.

Page and Goode, 1969
Page, F.M.; Goode, G.C., Negative Ions and the Magnetron., Wiley, NY, 1969. [all data]

Kime, Driscoll, et al., 1987
Kime, Y.J.; Driscoll, D.C.; Dowben, P.A., The stability of the carbon tetrahalide ions, J. Chem. Soc. Faraday Trans. 2, 1987, 83, 403. [all data]

Kaposi, Riedel, et al., 1976
Kaposi, O.; Riedel, M.; Vass-Balthazar, K.; Sanchez, G.R.; Lelik, L., Mass-spectrometric determination of thermochemical data of CHBr3 and CBr4 by study of their electron impact and heterogeneous pyrolytic decompositions, Acta Chim. Acad. Sci. Hung., 1976, 89, 221. [all data]

Werner, Tsai, et al., 1974
Werner, A.S.; Tsai, B.P.; Baer, T., Photoionization study of the ionization potentials fragmentation paths of the chlorinated methanes carbon tetrabromide, J. Chem. Phys., 1974, 60, 3650. [all data]

Dixon, Murrell, et al., 1971
Dixon, R.N.; Murrell, J.N.; Narayan, B., The photoelectron spectra of the halomethanes, Mol. Phys., 1971, 20, 611. [all data]

Potts, Lempka, et al., 1970
Potts, A.W.; Lempka, H.J.; Streets, D.G.; Price, W.C., Photoelectron spectra of the halides of elements in groups III, IV, V and VI, Phil. Trans. Roy. Soc. (London), 1970, A268, 59. [all data]

Green, Green, et al., 1970
Green, J.C.; Green, M.L.H.; Joachim, P.J.; Orchard, A.F.; Turner, D.W., A study of the bonding in the group IV tetrahalides by photoelectron spectroscopy, Phil. Trans. Roy. Soc. (London), 1970, A268, III. [all data]

Thorburn, 1965
Thorburn, R., Ionization and dissociation by electron impact in carbon tetrabromide, Brit. J. Appl. Phys., 1965, 16, 1397. [all data]

DeCorpo and Franklin, 1971
DeCorpo, J.J.; Franklin, J.L., Electron affinities of the halogen molecules by dissociative electron attachment, J. Chem. Phys., 1971, 54, 1885. [all data]

Reed and Snedden, 1958
Reed, R.I.; Snedden, W., Studies in electron impact methods. Part 2. The latent heat of sublimation of carbon, J. Chem. Soc. Faraday Trans., 1958, 54, 301. [all data]


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