2-Pentene, 3-methyl-, (E)-
- Formula: C6H12
- Molecular weight: 84.1595
- IUPAC Standard InChI: InChI=1S/C6H12/c1-4-6(3)5-2/h4H,5H2,1-3H3/b6-4+
- IUPAC Standard InChIKey: BEQGRRJLJLVQAQ-GQCTYLIASA-N
- CAS Registry Number: 616-12-6
- 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. - Species with the same structure:
- Stereoisomers:
- Other names: (E)-3-Methyl-2-pentene; trans-3-Methyl-2-Pentene; (E)-CH3CH=C(CH3)C2H5; 3-Methyl-trans-2-pentene; (E)-3-methylpent-2-ene
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, 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 | -15.18 ± 0.21 | kcal/mol | Ccb | Wiberg and Hao, 1991 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, 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°liquid | -22.69 ± 0.20 | kcal/mol | Ccb | Wiberg and Hao, 1991 |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Condensed 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
=
By formula: C6H12 = C6H12
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -8.30 ± 0.21 | kcal/mol | Ciso | Bartolo and Rossini, 1960 | liquid phase; Calculated from ΔHc |
+
=
By formula: C6H12 + C2HF3O2 = C8H13F3O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -8.79 ± 0.06 | kcal/mol | Cm | Wiberg and Hao, 1991 | liquid phase; Trifluoroacetolysis |
+
=
By formula: H2 + C6H12 = C6H14
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -26.31 ± 0.13 | kcal/mol | Chyd | Rogers, Crooks, et al., 1987 | liquid phase |
=
By formula: C6H12 = C6H12
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 0.328 ± 0.055 | kcal/mol | Eqk | Radyuk, Kabo, et al., 1972 | gas phase; At 476 K |
References
Go To: Top, Gas phase thermochemistry data, Condensed 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.
Wiberg and Hao, 1991
Wiberg, K.B.; Hao, S.,
Enthalpies of hydration of alkenes. 4. Formation of acyclic tert-alcohols,
J. Org. Chem., 1991, 56, 5108-5110. [all data]
Bartolo and Rossini, 1960
Bartolo, H.F.; Rossini, F.D.,
Heats of isomerization of the seventeen isomeric hexenes,
J. Phys. Chem., 1960, 64, 1685-1689. [all data]
Rogers, Crooks, et al., 1987
Rogers, D.W.; Crooks, E.; Dejroongruang, K.,
Enthalpies of hydrogenation of the hexenes,
J. Chem. Thermodyn., 1987, 19, 1209-1215. [all data]
Radyuk, Kabo, et al., 1972
Radyuk, Z.A.; Kabo, G.Ya.; Andreevskii, D.N.,
Equilibrium and thermodynamics of the isomerization of hexene isomers,
Neftekhimiya, 1972, 12, 679-686. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.