Carbon tetrabromide

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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
Δfgas12.00kcal/molReviewChase, 1998Data last reviewed in December, 1963
Δfgas20.1 ± 0.81kcal/molCcbBickerton, Minas Da Piedade, et al., 1984ALS
Quantity Value Units Method Reference Comment
gas,1 bar85.564cal/mol*KReviewChase, 1998Data last reviewed in December, 1963

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 6000.
A 25.13069
B 0.594556
C -0.160303
D 0.013637
E -0.320891
F 3.406480
G 114.0000
H 12.00000
ReferenceChase, 1998
Comment Data last reviewed in December, 1963

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 as indicated in comments:
DH - Eugene S. Domalski and Elizabeth D. Hearing
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfsolid7.03 ± 0.81kcal/molCcbBickerton, Minas Da Piedade, et al., 1984ALS
Quantity Value Units Method Reference Comment
Δcsolid-101.1 ± 0.79kcal/molCcbBickerton, Minas Da Piedade, et al., 1984ALS

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
38.79373.Kurbatov, 1948T = 96 to 182°C. Mean Cp, three temperatures.; DH

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
34.87298.15Bickerton, Minas Da Piedade, et al., 1984Cp given as 0.44 J/g*K.; DH
30.750300.6Marshall, Staveley, et al., 1956T = 22 to 84°C.; DH
35.47298.Frederick and Hildebrand, 1939T = 298 to 423 K.; DH

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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tfus367.6KN/ASilver and Rudman, 1970Crystal phase 1 phase; Uncertainty assigned by TRC = 1. K; TRC
Tfus365.KN/ASharpe and Walker, 1962Uncertainty assigned by TRC = 0.5 K; TRC
Tfus364.05KN/AVanderwerf, Davidson, et al., 1948Uncertainty assigned by TRC = 0.4 K; TRC
Quantity Value Units Method Reference Comment
Δsub13.0 ± 0.2kcal/molCBickerton, Minas Da Piedade, et al., 1984ALS

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
11.5384.AStephenson and Malanowski, 1987Based on data from 369. to 463. K. See also Stull, 1947.; AC
11.5390.N/AKudchadker, Kudchadker, et al., 1979Based on data from 375. to 463. 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 Comment
369.5 to 462.73.39461152.616-123.007Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
0.944363.2Domalski and Hearing, 1996AC

Entropy of fusion

ΔfusS (cal/mol*K) Temperature (K) Reference Comment
4.441320.Domalski and Hearing, 1996CAL
2.600363.2

Enthalpy of phase transition

ΔHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
1.594320.0crystaline, IIcrystaline, IMarshall, Staveley, et al., 1956DH
1.420320.0crystaline, IIcrystaline, IFrederick and Hildebrand, 1939DH
0.9450363.2crystaline, IliquidFrederick and Hildebrand, 1939DH

Entropy of phase transition

ΔStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
4.981320.0crystaline, IIcrystaline, IMarshall, Staveley, et al., 1956DH
4.438320.0crystaline, IIcrystaline, IFrederick and Hildebrand, 1939DH
2.603363.2crystaline, IliquidFrederick and Hildebrand, 1939DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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:
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

C8H6MoO3 (solution) + Carbon tetrabromide (solution) = Cyclopentadienylmolybdenumtricarbonyl bromide (solution) + Methane, tribromo- (solution)

By formula: C8H6MoO3 (solution) + CBr4 (solution) = C8H5BrMoO3 (solution) + CHBr3 (solution)

Quantity Value Units Method Reference Comment
Δr-34.4 ± 2.0kcal/molRSCNolan, López de la Vega, et al., 1986solvent: Tetrahydrofuran; The enthalpy of solution of Mo(Cp)(CO)3(H)(cr) was measured as 2.1 ± 0.1 kcal/mol Nolan, López de la Vega, et al., 1986, 2. Reaction temperature: 323 K; MS

Methane, tribromo- + Bromine = Hydrogen bromide + Carbon tetrabromide

By formula: CHBr3 + Br2 = HBr + CBr4

Quantity Value Units Method Reference Comment
Δr-1.7 ± 0.7kcal/molEqkKing, Golden, et al., 1971gas phase; ALS

C10H12Mo (cr) + 2Carbon tetrabromide (cr) = C10H10Br2Mo (cr) + 2Methane, tribromo- (l)

By formula: C10H12Mo (cr) + 2CBr4 (cr) = C10H10Br2Mo (cr) + 2CHBr3 (l)

Quantity Value Units Method Reference Comment
Δr-70.9 ± 1.1kcal/molRSCCalado, Dias, et al., 1980MS

C10H12W (cr) + 2Carbon tetrabromide (cr) = C10H10Br2W (cr) + 2Methane, tribromo- (l)

By formula: C10H12W (cr) + 2CBr4 (cr) = C10H10Br2W (cr) + 2CHBr3 (l)

Quantity Value Units Method Reference Comment
Δr-72.30 ± 0.53kcal/molRSCCalado, Dias, et al., 1980MS

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

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, 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.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Bickerton, Minas Da Piedade, et al., 1984
Bickerton, J.; Minas Da Piedade, M.E.; Pilcher, G., Enthalpy of formation of tetrabromomethane by rotating-bomb calorimetry, J. Chem. Thermodyn., 1984, 16, 661-668. [all data]

Kurbatov, 1948
Kurbatov, V.Ya., Heat capacity of liquids. 2. Heat capacity and the temperature dependence of heat capacity from halogen derivatives of acylic hydrocarbons, Zh. Obshch. Kim., 1948, 18, 372-389. [all data]

Marshall, Staveley, et al., 1956
Marshall, J.G.; Staveley, L.A.K.; Hart, K.R., A thermodynamic investigation of the transitions in carbon tetrabromide and ammonium chloride, Trans. Faraday Soc., 1956, 52, 19-31. [all data]

Frederick and Hildebrand, 1939
Frederick, K.J.; Hildebrand, J.H., Specific heats and heats of fusion and transition of carbon tetrabromide, J. Am. Chem. Soc., 1939, 61, 1555-1558. [all data]

Silver and Rudman, 1970
Silver, L.; Rudman, R., Polymorphism of the Crystalline Methylchloromethane Compounds. A Differential Scanning Calorimetric Study, J. Phys. Chem., 1970, 74, 3134-9. [all data]

Sharpe and Walker, 1962
Sharpe, A.N.; Walker, S., Molecular interaction: polarisation studies of mixtures of pyridine with polyhalogenated hydrocarbons, J. Chem. Soc., 1962, 1962, 157. [all data]

Vanderwerf, Davidson, et al., 1948
Vanderwerf, C.A.; Davidson, A.W.; Michaelis, C.I., Compound Formation Betwee 2,6-Lutidine and Polyhalogenated Methanes, J. Am. Chem. Soc., 1948, 70, 908. [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]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [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]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Nolan, López de la Vega, et al., 1986
Nolan, S.P.; López de la Vega, R.; Hoff, C.D., J. Organometal. Chem., 1986, 315, 187. [all data]

Nolan, López de la Vega, et al., 1986, 2
Nolan, S.P.; López de la Vega, R.; Hoff, C.D., Organometallics, 1986, 5, 2529. [all data]

King, Golden, et al., 1971
King, K.D.; Golden, D.M.; Benson, S.W., Kinetics and thermochemistry of the gas-phase bromination of bromoform. The C-H bond dissociation energy in CHBr3 and the C-Br bond dissociation energy in CBr4, J. Phys. Chem., 1971, 75, 987-989. [all data]

Calado, Dias, et al., 1980
Calado, J.C.G.; Dias, A.R.; Martinho Simões, J.A., J. Organometal. Chem., 1980, 195, 203. [all data]

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]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References