(Z)-3-Heptene
- Formula: C7H14
- Molecular weight: 98.1861
- IUPAC Standard InChI: InChI=1S/C7H14/c1-3-5-7-6-4-2/h5,7H,3-4,6H2,1-2H3/b7-5-
- IUPAC Standard InChIKey: WZHKDGJSXCTSCK-ALCCZGGFSA-N
- CAS Registry Number: 7642-10-6
- 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. - Stereoisomers:
- Other names: cis-3-Heptene; 3-Heptene, (Z)-
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change 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: Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -69.4 | kJ/mol | N/A | Wiberg, Wasserman, et al., 1984 | Value computed using ΔfHliquid° value of -104.6±0.63 kj/mol from Wiberg, Wasserman, et al., 1984 and ΔvapH° value of 35.2 kj/mol from alkenes correlation. |
| ΔfH°gas | -68.8 ± 0.6 | kJ/mol | Eqk | Wiberg, Wasserman, et al., 1984 | Value computed using ΔfHliquid° from Wiberg, Wasserman, et al., 1984 and ΔvapH° value of 35.8 kJ/mol from Steele and Chirico, 1993. |
| ΔfH°gas | -69.1 | kJ/mol | N/A | Good, 1976 | Value computed using ΔfHliquid° value of -104.3±0.79 kj/mol from Good, 1976 and ΔvapH° value of 35.2 kj/mol from alkenes correlation. |
| ΔfH°gas | -68.5 ± 0.8 | kJ/mol | Ccb | Good, 1976 | Value computed using ΔfHliquid° from Good, 1976 and ΔvapH° value of 35.8 kJ/mol from Steele and Chirico, 1993. |
Condensed phase 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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -104.6 ± 0.63 | kJ/mol | Eqk | Wiberg, Wasserman, et al., 1984 | Trifluoroacetolysis, hrxn[kcal/mol]=-10.14±0.03 |
| ΔfH°liquid | -104.3 ± 0.79 | kJ/mol | Ccb | Good, 1976 |
Phase change 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 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 | 369.0 | K | N/A | Weast and Grasselli, 1989 | BS |
| Tboil | 368.9 | K | N/A | Anonymous, 1951 | Uncertainty assigned by TRC = 0.3 K; TRC |
| Tboil | 368.97 | K | N/A | Shepherd, Greenlee, et al., 1948 | Uncertainty assigned by TRC = 0.3 K; TRC |
| Tboil | 369.1 | K | N/A | Soday and Boord, 1933 | Uncertainty assigned by TRC = 0.5 K; TRC |
| Tboil | 369.15 | K | N/A | Vavon and Kleiner, 1923 | Uncertainty assigned by TRC = 1. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 35.6 | kJ/mol | N/A | Reid, 1972 | AC |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 35.0 | 327. | A | Stephenson and Malanowski, 1987 | Based on data from 312. to 369. K.; 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° | -118.5 ± 0.3 | kJ/mol | Chyd | Rogers and Dejroongruang, 1988 | liquid phase; solvent: Hydrocarbone |
| ΔrH° | -117.2 ± 2.8 | kJ/mol | Chyd | Rogers and Siddiqui, 1975 | liquid phase; solvent: n-Hexane |
=
By formula: C7H14 = C7H14
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -7.6 ± 1.1 | kJ/mol | Eqk | Kabo, Andreevskii, et al., 1967 | gas phase; Heat of isomerization |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, 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.
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]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Anonymous, 1951
Anonymous, R.,
, Sunbury Rep. No. 4199, Anglo-Iranian Oil Co., 1951. [all data]
Shepherd, Greenlee, et al., 1948
Shepherd; Greenlee, K.W.; Boord, C.E.,
, Am. Pet. Inst. Res. Proj. 45, 1948. [all data]
Soday and Boord, 1933
Soday, F.J.; Boord, C.E.,
Synthesis in the Olefin Series IV. The Heptenes,
J. Am. Chem. Soc., 1933, 55, 3293. [all data]
Vavon and Kleiner, 1923
Vavon, G.; Kleiner, S.,
C. R. Hebd. Seances Acad. Sci., 1923, 177, 401. [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]
Rogers and Dejroongruang, 1988
Rogers, D.W.; Dejroongruang, K.,
Enthalpies of hydrogenation of the n-heptenes and the methylhexenes,
J. Chem. Thermodyn., 1988, 20, 675-680. [all data]
Rogers and Siddiqui, 1975
Rogers, D.W.; Siddiqui, N.A.,
Heats of hydrogenation of large molecules. I. Esters of unsaturated fatty acids,
J. Phys. Chem., 1975, 79, 574-577. [all data]
Kabo, Andreevskii, et al., 1967
Kabo, G.Ya.; Andreevskii, D.N.; Savinetskaya, G.A.,
Isomerization equilibrium of n-monochloroheptanes and n-heptenes,
Neftekhimiya, 1967, 7, 364-368. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
Tboil Boiling point 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 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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