Cyclohexene, 4-ethenyl-

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Gas 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
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas69.5 ± 1.5kJ/molCcbKozina, Timofeeva, et al., 1972ALS

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
142.61298.15Lenz T.G., 1990These values calculated by molecular mechanics method are in good agreement with estimation by a group additivity approach [ Dorofeeva O.V., 1997].; GT
143.45300.
186.51400.
225.06500.
259.10600.
288.64700.
313.67800.
334.19900.
350.211000.

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 compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C8H12+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.8 ± 0.1EIGroenwold and Gross, 1984LBLHLM
8.93 ± 0.02PIWatanabe, Nakayama, et al., 1962RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C4H6+10.9 ± 0.1C4H6EIGroenwold and Gross, 1984LBLHLM
C6H7+9.5 ± 0.1C2H5EIGroenwold and Gross, 1984LBLHLM
C7H9+9.8 ± 0.1CH3EIGroenwold and Gross, 1984LBLHLM

UV/Visible spectrum

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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: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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Additional Data

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Source Perkampus and Braunschweig, 1966
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 19923
Instrument Zeiss PMQ II
Boiling point 129-130

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.

Kozina, Timofeeva, et al., 1972
Kozina, M.P.; Timofeeva, L.P.; Pimenova, S.M.; Aleshina, V.A.; Belikova, N.A.; Bobyleva, A.A.; Plate, A.F., Enthalpies of combustion and of formation of 4-vinylcyclohexene and of certain bicyclic compounds, Russ. J. Phys. Chem. (Engl. Transl.), 1972, 46, 1689-1690. [all data]

Lenz T.G., 1990
Lenz T.G., Force field calculation of equilibrium thermodynamic properties: Diels-Alder reaction of 1,3-butadiene and ethylene and Diels-Alder dimerization of 1,3-butadiene, J. Comput. Chem., 1990, 11, 351-360. [all data]

Dorofeeva O.V., 1997
Dorofeeva O.V., Unpublished results. Thermocenter of Russian Academy of Science, Moscow, 1997. [all data]

Groenwold and Gross, 1984
Groenwold, G.S.; Gross, M.L., Cation radical diels-alder reaction of 1,3-butadiene: A two-step cycloaddition, J. Am. Chem. Soc., 1984, 106, 6569. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Perkampus and Braunschweig, 1966
Perkampus, H.-H.; Braunschweig, T.H., UV atlas of organic compounds, 1966, 1, A1/17. [all data]


Notes

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