2-Heptene, (E)-
- Formula: C7H14
- Molecular weight: 98.1861
- IUPAC Standard InChIKey: OTTZHAVKAVGASB-HWKANZROSA-N
- CAS Registry Number: 14686-13-6
- 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)-2-Heptene; trans-2-Heptene; (E)-2-C7H14; 2-Heptene trans; Heptylene-2, trans-; trans-hept-2-ene
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Gas phase thermochemistry data
Go To: Top, Phase change data, Henry's Law 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: Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -17.7 | kcal/mol | N/A | Wiberg, Wasserman, et al., 1984 | Value computed using ΔfHliquid° value of -109.4±0.63 kj/mol from Wiberg, Wasserman, et al., 1984 and ΔvapH° value of 35.2 kj/mol from alkenes correlation. |
ΔfH°gas | -17.5 ± 0.2 | kcal/mol | Eqk | Wiberg, Wasserman, et al., 1984 | Value computed using ΔfHliquid° from Wiberg, Wasserman, et al., 1984 and ΔvapH° value of 8.68 kcal/mol from Steele and Chirico, 1993. |
ΔfH°gas | -17.8 | kcal/mol | N/A | Good, 1976 | Value computed using ΔfHliquid° value of -109.5±0.84 kj/mol from Good, 1976 and ΔvapH° value of 35.2 kj/mol from alkenes correlation. |
ΔfH°gas | -17.5 ± 0.2 | kcal/mol | Ccb | Good, 1976 | Value computed using ΔfHliquid° from Good, 1976 and ΔvapH° value of 8.68 kcal/mol from Steele and Chirico, 1993. |
ΔfH°gas | -18.0 ± 0.2 | kcal/mol | Cm | Coops, Mulder, et al., 1946 | Value computed using ΔfHliquid° from Coops, Mulder, et al., 1946 and ΔvapH° value of 8.68 kcal/mol from Steele and Chirico, 1993. |
Phase change data
Go To: Top, Gas phase thermochemistry data, Henry's Law 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 | 371. ± 2. | K | AVG | N/A | Average of 10 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 163.64 | K | N/A | Streiff, Hulme, et al., 1955 | Uncertainty assigned by TRC = 0.02 K; TRC |
Tfus | 163.64 | K | N/A | Streiff, Hulme, et al., 1955 | Uncertainty assigned by TRC = 0.02 K; TRC |
Tfus | 163.67 | K | N/A | Streiff, Hulme, et al., 1955 | Uncertainty assigned by TRC = 0.01 K; TRC |
Tfus | 163.640 | K | N/A | Anonymous, 1951 | Uncertainty assigned by TRC = 0.06 K; TRC |
Tfus | 163.670 | K | N/A | Anonymous, 1951 | Uncertainty assigned by TRC = 0.04 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 8.60 | kcal/mol | N/A | Reid, 1972 | AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
8.44 | 329. | A | Stephenson and Malanowski, 1987 | Based on data from 314. to 373. K.; AC |
8.27 | 346. | N/A | Eisen and Orav, 1970 | Based on data from 331. to 370. K.; AC |
Henry's Law data
Go To: Top, Gas phase thermochemistry data, Phase change 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: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference |
---|---|---|---|
0.0024 | L | N/A | |
0.0025 | V | N/A |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wiberg, Wasserman, et al., 1984
Wiberg, K.B.; Wasserman, D.J.; Martin, E.,
Enthalpies of hydration of alkenes. 2. The n-heptenes and n-pentenes,
J. Phys. Chem., 1984, 88, 3684-3688. [all data]
Steele and Chirico, 1993
Steele, W.V.; Chirico, R.D.,
Thermodynamic properties of alkenes (mono-olefins larger than C4),
J. Phys. Chem. Ref. Data, 1993, 22, 377-430. [all data]
Good, 1976
Good, W.D.,
The enthalpies of formation of five isomeric heptenes,
J. Chem. Thermodyn., 1976, 8, 67-71. [all data]
Coops, Mulder, et al., 1946
Coops, J.; Mulder, D.; Dienske, J.W.; Smittenberg, J.,
The heats of combustion of a number of hydrocarbons,
Rec. Trav. Chim. Pays/Bas, 1946, 65, 128. [all data]
Streiff, Hulme, et al., 1955
Streiff, A.J.; Hulme, A.R.; Cowie, P.A.; Krouskop, N.C.; Rossini, F.D.,
Purification, Purity, and Freezing Points of Sixty-four American Petroleum Institute Standard and Research Hydrocarbons,
Anal. Chem., 1955, 27, 411. [all data]
Anonymous, 1951
Anonymous, R.,
, Sunbury Rep. No. 4199, Anglo-Iranian Oil Co., 1951. [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]
Eisen and Orav, 1970
Eisen, O.; Orav, A.,
Eesti NSV Tead. Akad. Toim. Keem. Geol., 1970, 19, 3, 202. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K ΔfH°gas Enthalpy of formation of gas 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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