(Z)-2-Heptene

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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
Δfliquid-105.9 ± 0.63kJ/molEqkWiberg, Wasserman, et al., 1984Trifluoroacetolysis, hrxn[kcal/mol]=-9.827±0.021
Δfliquid-105.1 ± 0.92kJ/molCcbGood, 1976 
Quantity Value Units Method Reference Comment
Δcliquid-4650.22 ± 0.79kJ/molCcbGood, 1976Corresponding Δfliquid = -105.1 kJ/mol (simple calculation by NIST; no Washburn corrections)

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
Tboil372. ± 2.KAVGN/AAverage of 12 values; Individual data points
Quantity Value Units Method Reference Comment
Δvap38.6kJ/molGSVerevkin, Wandschneider, et al., 2000Based on data from 276. to 304. K.; AC
Δvap36.0kJ/molN/AReid, 1972AC

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
39.0 ± 0.3290.GSVerevkin, Wandschneider, et al., 2000Based on data from 276. to 304. K.; AC
35.3330.AStephenson and Malanowski, 1987Based on data from 315. to 372. K.; AC
34.6347.N/AEisen and Orav, 1970Based on data from 332. to 371. K. See also Boublik, Fried, et al., 1984.; AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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

Hydrogen + (Z)-2-Heptene = Heptane

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
Δr-115.6 ± 0.4kJ/molChydRogers and Dejroongruang, 1988liquid phase; solvent: Hydrocarbone

(Z)-2-Heptene = 2-Heptene, (E)-

By formula: C7H14 = C7H14

Quantity Value Units Method Reference Comment
Δr-4.kJ/molCisoStrohmeier and Rehder-Stirnweiss, 1970liquid phase; Isomerization over RhH(CO)(PPh3)3

1-Heptene = (Z)-2-Heptene

By formula: C7H14 = C7H14

Quantity Value Units Method Reference Comment
Δr-7.6 ± 0.1kJ/molEqkKabo, Andreevskii, et al., 1967gas phase; Heat of isomerization

References

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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]

Good, 1976
Good, W.D., The enthalpies of formation of five isomeric heptenes, J. Chem. Thermodyn., 1976, 8, 67-71. [all data]

Verevkin, Wandschneider, et al., 2000
Verevkin, Sergey P.; Wandschneider, Dirk; Heintz, Andreas, Determination of Vaporization Enthalpies of Selected Linear and Branched C 7 , C 8 , C 9 , C 11 , and C 12 Monoolefin Hydrocarbons from Transpiration and Correlation Gas-Chromatography Methods, J. Chem. Eng. Data, 2000, 45, 4, 618-625, https://doi.org/10.1021/je990297k . [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]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [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]

Strohmeier and Rehder-Stirnweiss, 1970
Strohmeier, W.; Rehder-Stirnweiss, W., Isomerization of heptene over RhH(CO)(PPh3)3, J. Organomet. Chem., 1970, 22, 27-28. [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

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