Butane, 1,2-dibromo-
- Formula: C4H8Br2
- Molecular weight: 215.914
- IUPAC Standard InChI: InChI=1S/C4H8Br2/c1-2-4(6)3-5/h4H,2-3H2,1H3
- IUPAC Standard InChIKey: CZWSZZHGSNZRMW-UHFFFAOYSA-N
- CAS Registry Number: 533-98-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: α-Butylene dibromide; 1,2-Dibromobutane; α-Butylene bromide
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Gas phase thermochemistry data
Go To: Top, Reaction thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -92.93 | kJ/mol | Eqk | Rozhnov and Nesterova, 1973 | |
| ΔfH°gas | -102.2 ± 2.4 | kJ/mol | Ccr | Bjellerup, 1961 |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry 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: 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
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=
By formula: C4H8 + Br2 = C4H8Br2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -120.9 | kJ/mol | Cm | Lister, 1941 | gas phase; Heat of bromination at 300 K |
| ΔrH° | -123.2 ± 0.84 | kJ/mol | Cm | Conn, Kistiakowsky, et al., 1938 | gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -123.8 ± 0.84 kJ/mol; At 355 °K |
=
By formula: C4H8Br2 = C4H8Br2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -6.0 ± 0.3 | kJ/mol | Eqk | Rozhnov, Nesterova, et al., 1972 | liquid phase |
=
By formula: C4H8Br2 = C4H8Br2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -8.3 ± 0.3 | kJ/mol | Eqk | Nesterova, Rozhnov, et al., 1973 | liquid phase |
=
By formula: C4H8Br2 = C4H8Br2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -1.8 ± 0.4 | kJ/mol | Eqk | Rozhnov, Nesterova, et al., 1972 | liquid phase |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Rozhnov and Nesterova, 1973
Rozhnov, A.M.; Nesterova, T.N.,
Heats of formation of dibromo-n-butanes,
Russ. J. Phys. Chem. (Engl. Transl.), 1973, 47, 1390, In original 2455. [all data]
Bjellerup, 1961
Bjellerup, L.,
On the accuracy of heat of combustion data obtained with a precision moving-bomb calorimetric method for organic bromine compounds,
Acta Chem. Scand., 1961, 15, 121-140. [all data]
Lister, 1941
Lister, M.W.,
Heats of organic reactions. X. Heats of bromination of cyclic olefins,
J. Am. Chem. Soc., 1941, 63, 143-149. [all data]
Conn, Kistiakowsky, et al., 1938
Conn, J.B.; Kistiakowsky, G.B.; Smith, E.A.,
Heats of organic reactions. VII. Addition of halogens to olefins,
J. Am. Chem. Soc., 1938, 60, 2764-2771. [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]
Rozhnov, Nesterova, et al., 1972
Rozhnov, A.M.; Nesterova, T.N.; Kovaleva, T.V.,
Isomerization of dibromobutanes. I. Isomerization of 1,2-, 1,3-, and 1,4-dibromobutanes.,
Zh. Org. Khim., 1972, 8, 1560-1564. [all data]
Nesterova, Rozhnov, et al., 1973
Nesterova, T.N.; Rozhnov, A.M.; Kovaleva, T.V.,
Isomerisation equilibrium of 1,2-, 1,3-, and 2,3-dibromobutanes,
Russ. J. Phys. Chem. (Engl. Transl.), 1973, 47, 755-756. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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