Isopropenyl bromide
- Formula: C3H5Br
- Molecular weight: 120.976
- IUPAC Standard InChI: InChI=1S/C3H5Br/c1-3(2)4/h1H2,2H3
- IUPAC Standard InChIKey: PHMRPWPDDRGGGF-UHFFFAOYSA-N
- CAS Registry Number: 557-93-7
- 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: Propene, 2-bromo-; 1-Propene, 2-bromo-; α-Methylvinyl bromide; 2-Bromo-1-propene; 2-Bromopropene; 2-Bromopropylene; CH3CBr=CH2; Isopropylene bromide; NSC 87535
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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics 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
=
+
By formula: C3H6Br2 = HBr + C3H5Br
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 15.5 | kcal/mol | Eqk | Levanova, Rodova, et al., 1983 | liquid phase; Flow reactor |
| ΔrH° | 16.7 ± 0.2 | kcal/mol | Eqk | Sharonov and Rozhnov, 1971 | gas phase |
=
+
By formula: C3H6BrCl = C3H5Br + HCl
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 15.5 | kcal/mol | Eqk | Levanova, Rodova, et al., 1983 | liquid phase; Flow reactor |
=
+
By formula: C3H6BrCl = C3H5Br + HCl
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 15.0 | kcal/mol | Eqk | Levanova, Rodova, et al., 1983 | liquid phase; Flow reactor |
=
+
By formula: C3H6Br2 = HBr + C3H5Br
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 15.2 | kcal/mol | Eqk | Levanova, Rodova, et al., 1983 | liquid phase; Flow reactor |
Gas phase ion energetics 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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
View reactions leading to C3H5Br+ (ion structure unspecified)
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.58 ± 0.02 | PE | Chadwick, Frost, et al., 1972 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| C3H5+ | 10.8 ± 0.1 | Br | EI | Burgers, Holmes, et al., 1983 | LBLHLM |
References
Go To: Top, 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.
Levanova, Rodova, et al., 1983
Levanova, S.V.; Rodova, R.M.; Tereshkina, T.P.; Zabrodina, T.I.,
Thermocatalytic reactions of bromochloropropanes,
Russ. J. Phys. Chem. (Engl. Transl.), 1983, 57, 1142-1146. [all data]
Sharonov and Rozhnov, 1971
Sharonov, K.G.; Rozhnov, A.M.,
Dehydrobromination of 2,2-dibromopropane,
Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1971, 14, 389-393. [all data]
Chadwick, Frost, et al., 1972
Chadwick, D.; Frost, D.C.; Katrib, A.; McDowell, C.A.; McLean, R.A.N.,
Photoelectron spectra of some bromoethylenes and 2-bromopropene,
Can. J. Chem., 1972, 50, 2642. [all data]
Burgers, Holmes, et al., 1983
Burgers, P.C.; Holmes, J.L.; Mommers, A.A.; Szulejko, J.E.,
The collisionally induced dissociation of allyl and 2-propenyl cations,
Org. Mass Spectrom., 1983, 18, 596. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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