2-Pentene, 3,4-dimethyl-, (E)-
- Formula: C7H14
- Molecular weight: 98.1861
- IUPAC Standard InChIKey: PPBWEVVDSRKEIK-FNORWQNLSA-N
- CAS Registry Number: 4914-92-5
- 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. - Stereoisomers:
- Other names: (E)-3,4-Dimethyl-2-pentene; trans-3,4-Dimethyl-2-pentene; (E)-(CH3)2C=CHCH(CH3)2; 3,4-Dimethyl-trans-2-pentene; (2E)-3,4-Dimethyl-2-pentene; 3,4-Dimethyl-2-pentene (trans)
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Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 364.6 ± 0.4 | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 159.720 | K | N/A | Streiff, Schultz, et al., 1957 | Uncertainty assigned by TRC = 0.06 K; TRC |
Tfus | 159.730 | K | N/A | Streiff, Schultz, et al., 1957 | Uncertainty assigned by TRC = 0.04 K; TRC |
Tfus | 159.750 | K | N/A | Streiff, Schultz, et al., 1957 | Uncertainty assigned by TRC = 0.02 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 35.1 | kJ/mol | N/A | Reid, 1972 | AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
33.9 | 332. | A | Stephenson and Malanowski, 1987 | Based on data from 317. to 390. K. See also Kkykj and Repas, 1973.; AC |
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
By formula: H2 + C7H14 = C7H16
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -108.0 ± 0.4 | kJ/mol | Chyd | Rogers and Dejroongruang, 1989 | liquid phase; solvent: Cyclohexane |
References
Go To: Top, Phase change 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.
Streiff, Schultz, et al., 1957
Streiff, A.J.; Schultz, L.H.; Hulme, A.R.; Tucker, J.A.; Krouskop, N.C.; Rossini, F.D.,
Purification, Purity, and Freezing Points of 20 API Standard API Research Hydrocarbons,
Anal. Chem., 1957, 29, 361. [all data]
Reid, 1972
Reid, Robert C.,
Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00,
AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637
. [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]
Kkykj and Repas, 1973
Kkykj, J.; Repas, M.,
Petrochemia, 1973, 13, 179. [all data]
Rogers and Dejroongruang, 1989
Rogers, D.W.; Dejroongruang, K.,
Enthalpies of hydrogenation of the dimethylpentenes, ethylpentenes, methylbutene, and trimethylbutene,
J. Chem. Thermodyn., 1989, 21, 1115-1120. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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