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Benzene, bromopentafluoro-

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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
Deltafgas-800.4kJ/molSemiStewart, 2004 
Deltafgas-712.0 ± 5.6kJ/molCcbKrech, Price, et al., 1977Reanalyzed by Pedley, Naylor, et al., 1986, Original value = -712. ± 17. kJ/mol; Uc=-2137.78 kJ/mol; ALS

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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil410.KN/AFarchan Laboratories, 1990BS
Tboil410.KN/APCR Inc., 1990BS
Tboil410.2KN/AWeast and Grasselli, 1989BS
Tboil410.KN/AAmerican Tokyo Kasei, 1988BS
Quantity Value Units Method Reference Comment
Deltavap43.05 ± 0.21kJ/molVKrech, Price, et al., 1977Uc=-2137.78 kJ/mol; ALS
Deltavap43.1 ± 0.2kJ/molN/AKrech, Price, et al., 1977Based on data from 283. - 348. K.; AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
38.2415.AStephenson and Malanowski, 1987Based on data from 400. - 522. K. See also Dykyj, 1972.; AC
38.0429.EBWoodman and Adicoff, 1969Based on data from 414. - 522. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
414.76 - 521.344.174051447.605-62.609Evans and Tiley, 1966Coefficents calculated by NIST from author's data.

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:
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)9.62 ± 0.05eVN/AN/AL

Electron affinity determinations

EA (eV) Method Reference Comment
1.15 ± 0.11IMREDillow and Kebarle, 1989«DELTA»Gea(423 K) = -28.0±1.0 kcal/mol , assumed entropy = 3.5 eu; B

Ionization energy determinations

IE (eV) Method Reference Comment
9.67 ± 0.02PEMohraz, Maier, et al., 1980LLK
9.6 ± 0.1EIMajer and Patrick, 1962RDSH
9.57PETrudell and Price, 1979Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C6F5+14.93 ± 0.05BrEIPrice and Sapiano, 1974LLK
C6F5+15.2 ± 0.1BrEIMajer and Patrick, 1962RDSH

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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Mass spectrum
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Additional Data

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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 Japan AIST/NIMC Database- Spectrum MS-NW-6009
NIST MS number 235806

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


UV/Visible 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: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source (editor), 1967
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 18951
Instrument SFD-2
Boiling point 134.5-135.0

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, NIST Free Links, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Stewart, 2004
Stewart, J.J.P., Comparison of the accuracy of semiempirical and some DFT methods for predicting heats of formation, J. Mol. Model, 2004, 10, 1, 6-10, https://doi.org/10.1007/s00894-003-0157-6 . [all data]

Krech, Price, et al., 1977
Krech, M.J.; Price, S.J.W.; Sapiano, H.J., Determination of «DELTA»H12980(C6F5Br,g)from studies of the combustion of bromopentafluorobenzene in oxygen and calculation of D[C6F5-Br], Can. J. Chem., 1977, 55, 4222-4226. [all data]

Pedley, Naylor, et al., 1986
Pedley, J.B.; Naylor, R.D.; Kirby, S.P., Thermochemical Data of Organic Compounds, Chapman and Hall, New York, 1986, 1-792. [all data]

Farchan Laboratories, 1990
Farchan Laboratories, Research Chemicals Catalog, Farchan Laboratories, Gainesville, FL, 1990, 91. [all data]

PCR Inc., 1990
PCR Inc., Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [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]

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]

Dykyj, 1972
Dykyj, J., Petrochemia, 1972, 12, 1, 13. [all data]

Woodman and Adicoff, 1969
Woodman, Alan L.; Adicoff, Arnold, Vapor pressure of methyl 2-cyanoacrylate, J. Chem. Eng. Data, 1969, 14, 4, 479-480, https://doi.org/10.1021/je60043a019 . [all data]

Evans and Tiley, 1966
Evans, F.D.; Tiley, Vapour Pressures and Critical Constants of Hexafluoro-, Pentafluoro-, Chloropentafluoro-, and Bromopentafluoro-benzene, J. Chem. Soc. B:, 1966, 134-136, https://doi.org/10.1039/j29660000134 . [all data]

Dillow and Kebarle, 1989
Dillow, G.W.; Kebarle, P., Substituent Effects on the Electron Affinities of Perfluorobenzenes C6F5X, J. Am. Chem. Soc., 1989, 111, 15, 5592, https://doi.org/10.1021/ja00197a014 . [all data]

Mohraz, Maier, et al., 1980
Mohraz, M.; Maier, J.P.; Heilbronner, E., He(I «alpha») and He(I«alpha») photoelectron spectra of fluorinated chloro- and bromobenzenes, J. Electron Spectrosc. Relat. Phenom., 1980, 19, 429. [all data]

Majer and Patrick, 1962
Majer, J.R.; Patrick, C.R., Electron impact on some halogenated aromatic compounds, J. Chem. Soc. Faraday Trans., 1962, 58, 17. [all data]

Trudell and Price, 1979
Trudell, B.C.; Price, S.J.W., The ultraviolet photoelectron spectra of C6F5X compounds, X=(F, Cl, Br, I, H, CH3), Can. J. Chem., 1979, 57, 2256. [all data]

Price and Sapiano, 1974
Price, S.J.W.; Sapiano, H.J., C6F5X bond dissociation energies: determination from appearance potential measurements and correlation with thermochemical data, Can. J. Chem., 1974, 52, 4109. [all data]

(editor), 1967
(editor), Koptyug V.A., Atlas of Spectra of Aromatic and Heterocyclic Compounds, 1967, 1, 18. [all data]


Notes

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