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Cycloheptane

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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
B - John E. Bartmess

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 + Cycloheptene = Cycloheptane

By formula: H2 + C7H12 = C7H14

Quantity Value Units Method Reference Comment
Deltar-26.4 ± 0.1kcal/molChydRoth and Lennartz, 1980liquid phase; solvent: Cyclohexane; ALS
Deltar-25.85 ± 0.09kcal/molChydTurner, Meador, et al., 1957liquid phase; solvent: Acetic acid; ALS
Deltar-26.02 ± 0.15kcal/molChydConn, Kistiakowsky, et al., 1939gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -26.52 ± 0.02 kcal/mol; At 355 K; ALS

3Hydrogen + 1,3,5-Cycloheptatriene = Cycloheptane

By formula: 3H2 + C7H8 = C7H14

Quantity Value Units Method Reference Comment
Deltar-72.8 ± 0.1kcal/molChydRoth, Klaerner, et al., 1983liquid phase; solvent: Isooctane; ALS
Deltar-70.49 ± 0.39kcal/molChydTurner, Meador, et al., 1957liquid phase; solvent: Acetic acid; ALS
Deltar-72.11 ± 0.30kcal/molChydConn, Kistiakowsky, et al., 1939gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -72.85 ± 0.01 kcal/mol; at 355 K; ALS

2Hydrogen + 1,3-Cycloheptadiene = Cycloheptane

By formula: 2H2 + C7H10 = C7H14

Quantity Value Units Method Reference Comment
Deltar-49.92 ± 0.08kcal/molChydTurner, Mallon, et al., 1973liquid phase; solvent: Glacial acetic acid; ALS
Deltar-50.77 ± 0.15kcal/molChydConn, Kistiakowsky, et al., 1939gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -51.26 ± 0.05 kcal/mol; At 355 K; ALS

C7H13- + Hydrogen cation = Cycloheptane

By formula: C7H13- + H+ = C7H14

Quantity Value Units Method Reference Comment
Deltar415.6 ± 4.8kcal/molBranPeerboom, Rademaker, et al., 1992gas phase; B
Quantity Value Units Method Reference Comment
Deltar406.7 ± 4.9kcal/molH-TSPeerboom, Rademaker, et al., 1992gas phase; B

2Hydrogen + 1,4-Cycloheptadiene = Cycloheptane

By formula: 2H2 + C7H10 = C7H14

Quantity Value Units Method Reference Comment
Deltar-55.9 ± 0.8kcal/molChydTurner, Mallon, et al., 1973liquid phase; solvent: Glacial acetic acid; ALS

References

Go To: Top, Reaction thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Roth and Lennartz, 1980
Roth, W.R.; Lennartz, H.W., Heats of hydrogenation. I. Determination of heats of hydrogenation with an isothermal titration calorimeter, Chem. Ber., 1980, 113, 1806-1817. [all data]

Turner, Meador, et al., 1957
Turner, R.B.; Meador, W.R.; Winkler, R.E., Heats of hydrogenation. I. Apparatus and the heats of hydrogenation of bicyclo[2,2,1]heptene, bicyclo[2,2,1]heptadiene, bicyclo[2,2,2]octene and bicyclo[2,2,2]octadiene, J. Am. Chem. Soc., 1957, 79, 4116-4121. [all data]

Conn, Kistiakowsky, et al., 1939
Conn, J.B.; Kistiakowsky, G.B.; Smith, E.A., Heats of organic reactions. VIII. Some further hydrogenations, including those of some acetylenes, J. Am. Chem. Soc., 1939, 61, 1868-1876. [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]

Roth, Klaerner, et al., 1983
Roth, W.R.; Klaerner, F.G.; Gerit, F.; Grimme, W.; Koeser, H.G.; Busch, R.; Muskulus, B.; Breuckmann, R.; Scholz, B.P.; Lennartz, H.W., Stereochemistry of the bicyclo[2.1.0]pentane ring opening: thermolysis of tricyclo[3.2.0.0(,)]heptane derivatives, Chem. Ber., 1983, 116, 2717-2737. [all data]

Turner, Mallon, et al., 1973
Turner, R.B.; Mallon, B.J.; Tichy, M.; Doering, W.v.E.; Roth, W.R.; Schroder, G., Heats of hydrogenation. X. Conjugative interaction in cyclic dienes and trienes, J. Am. Chem. Soc., 1973, 95, 8605-8610. [all data]

Peerboom, Rademaker, et al., 1992
Peerboom, R.A.L.; Rademaker, G.J.; Dekoning, L.J.; Nibbering, N.M.M., Stabilization of Cycloalkyl Carbanions in the Gas Phase, Rapid Commun. Mass Spectrom., 1992, 6, 6, 394, https://doi.org/10.1002/rcm.1290060608 . [all data]


Notes

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