Butane, 2-bromo-

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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 by: 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

Hydrogen bromide + 2-Butene, (Z)- = Butane, 2-bromo-

By formula: HBr + C4H8 = C4H9Br

Quantity Value Units Method Reference Comment
Δr-18.42 ± 0.12kcal/molCmLacher, Billings, et al., 1952gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -18.3 ± 1.6 kcal/mol; Heat of Hydrobromination at 373 K

Hydrogen bromide + 2-Butene, (E)- = Butane, 2-bromo-

By formula: HBr + C4H8 = C4H9Br

Quantity Value Units Method Reference Comment
Δr-17.26 ± 0.12kcal/molCmLacher, Billings, et al., 1952gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -17.3 ± 1.4 kcal/mol; Heat of hydrobromination at 373 K

Hydrogen bromide + 1-Butene = Butane, 2-bromo-

By formula: HBr + C4H8 = C4H9Br

Quantity Value Units Method Reference Comment
Δr-20.04 ± 0.12kcal/molCmLacher, Billings, et al., 1952gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -20.1 ± 1.8 kcal/mol; Heat of hydrobromination at 367 K

Butane, 1-bromo- = Butane, 2-bromo-

By formula: C4H9Br = C4H9Br

Quantity Value Units Method Reference Comment
Δr-2.4kcal/molEqkAlenin, Rozhnov, et al., 1974liquid phase; Heat of isomerization

References

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

Lacher, Billings, et al., 1952
Lacher, J.R.; Billings, T.J.; Campion, D.E., Vapor phase heats of hydrobromination of the isomeric butenes, J. Am. Chem. Soc., 1952, 74, 5291-52. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Alenin, Rozhnov, et al., 1974
Alenin, V.I.; Rozhnov, A.M.; Nesterova, T.N.; Strizhkov, V.N., Equilibrium in the isomerisation of liquid C3-C4 monobromoalkanes, Russ. J. Phys. Chem. (Engl. Transl.), 1974, 48, 1702. [all data]


Notes

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