1-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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfliquid-97.70 ± 0.63kJ/molEqkWiberg, Wasserman, et al., 1984Trifluoroacetolysis, hrxn[kcal/mol]=-11.808±0.015; ALS
Δfliquid-98.37 ± 0.88kJ/molCcbGood, 1976ALS
Δfliquid-97.0 ± 1.2kJ/molCcbRockenfeller and Rossini, 1961Reanalyzed by Cox and Pilcher, 1970, Original value = -97.95 kJ/mol; ALS
Quantity Value Units Method Reference Comment
Δcliquid-4657.00 ± 0.75kJ/molCcbGood, 1976Corresponding Δfliquid = -98.37 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-4658.3 ± 1.2kJ/molCcbRockenfeller and Rossini, 1961Corresponding Δfliquid = -97.03 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Δcliquid-4650.98 ± 0.79kJ/molCcbCoops, Mulder, et al., 1947Reanalyzed by Cox and Pilcher, 1970, Original value = -4642. ± 4. kJ/mol; See Coops, Mulder, et al., 1946; Corresponding Δfliquid = -104.4 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid327.65J/mol*KN/AMcCullough, Finke, et al., 1957DH
liquid328.9J/mol*KN/AParks, Todd, et al., 1936Extrapolation below 80 K, 58.58 J/mol*K.; DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
211.79298.15McCullough, Finke, et al., 1957T = 11 to 360 K.; DH
212.84295.1Parks, Todd, et al., 1936T = 80 to 295 K. Value is unsmoothed experimental datum.; DH

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 + 1-Heptene = Heptane

By formula: H2 + C7H14 = C7H16

Quantity Value Units Method Reference Comment
Δr-125. ± 2.kJ/molAVGN/AAverage of 6 values; Individual data points

2-Heptanol = 1-Heptene + Water

By formula: C7H16O = C7H14 + H2O

Quantity Value Units Method Reference Comment
Δr33.4 ± 0.2kJ/molCmWiberg, Wasserman, et al., 1984liquid phase; Heat of hydration

3-Heptanol = 1-Heptene + Water

By formula: C7H16O = C7H14 + H2O

Quantity Value Units Method Reference Comment
Δr33.2 ± 0.2kJ/molCmWiberg, Wasserman, et al., 1984liquid phase; Heat of hydration

4-Heptanol = 1-Heptene + Water

By formula: C7H16O = C7H14 + H2O

Quantity Value Units Method Reference Comment
Δr32.8 ± 0.2kJ/molCmWiberg, Wasserman, et al., 1984liquid phase; Heat of hydration

1-Heptene + Bromine = C7H14Br2

By formula: C7H14 + Br2 = C7H14Br2

Quantity Value Units Method Reference Comment
Δr-126.5kJ/molCmLister, 1941gas phase; Heat of bromination at 300 K

1-Heptene = 3-Heptene, (E)-

By formula: C7H14 = C7H14

Quantity Value Units Method Reference Comment
Δr-10.9 ± 0.4kJ/molEqkKabo, Andreevskii, et al., 1967gas phase; Heat of isomerization

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

By formula: C7H14 = C7H14

Quantity Value Units Method Reference Comment
Δr-10. ± 0.2kJ/molEqkKabo, Andreevskii, et al., 1967gas phase; Heat of isomerization

1-Heptene = (Z)-3-Heptene

By formula: C7H14 = C7H14

Quantity Value Units Method Reference Comment
Δr-7.6 ± 1.1kJ/molEqkKabo, Andreevskii, et al., 1967gas phase; Heat of isomerization

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

Gas phase ion energetics 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 evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Quantity Value Units Method Reference Comment
IE (evaluated)9.34 ± 0.08eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
9.38 ± 0.05EIHolmes and Lossing, 1991LL
9.3 ± 0.1EIHaib and Stahl, 1990LL
9.27 ± 0.02PEAshmore and Burgess, 1978LLK
9.442 ± 0.003PEMasclet, Grosjean, et al., 1973LLK

References

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics 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]

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

Rockenfeller and Rossini, 1961
Rockenfeller, J.D.; Rossini, F.D., Heats of combustion, isomerization, and formation of selected C7, C8, and C10 monoolefin hydrocarbons, J. Phys. Chem., 1961, 65, 267-272. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Coops, Mulder, et al., 1947
Coops, J.; Mulder, D.; Dienske, J.W.; Smittenberg, J., Researches on heat of combustion IV. Technique for the determination of the heats of combustion of volatile liquids, Recl. Trav. Chim. Pays-Bas, 1947, 66, 153-160. [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]

McCullough, Finke, et al., 1957
McCullough, J.P.; Finke, H.L.; Gross, M.E.; Messerly, J.F.; Waddington, G., Low temperature calorimetric studies of seven 1-olefins: effect of orientational disorder in the solid state, J. Phys. Chem., 1957, 61, 289-301. [all data]

Parks, Todd, et al., 1936
Parks, G.S.; Todd, S.S.; Shomate, C.H., Thermal data on organic compounds. XVII. Some heat capacity, entropy and free energy data for five higher olefins, J. Am. Chem. Soc., 1936, 58, 2505-2508. [all data]

Lister, 1941
Lister, M.W., Heats of organic reactions. X. Heats of bromination of cyclic olefins, J. Am. Chem. Soc., 1941, 63, 143-149. [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]

Holmes and Lossing, 1991
Holmes, J.L.; Lossing, F.P., Ionization energies of homologous organic compounds and correlation with molecular size, Org. Mass Spectrom., 1991, 26, 537. [all data]

Haib and Stahl, 1990
Haib, J.; Stahl, D., The loss of water from ionized heptanols in the gas phase, Org. Mass Spectrom., 1990, 25, 592. [all data]

Ashmore and Burgess, 1978
Ashmore, F.S.; Burgess, A.R., Photoelectron spectra of the unbranched C5-C7 alkenes, aldehydes and ketones, J. Chem. Soc. Faraday Trans. 2, 1978, 74, 734. [all data]

Masclet, Grosjean, et al., 1973
Masclet, P.; Grosjean, D.; Mouvier, G., Alkene ionization potentials. Part I. Quantitative determination of alkyl group structural effects, J. Electron Spectrosc. Relat. Phenom., 1973, 2, 225. [all data]


Notes

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