1,3,5-Hexatriene, (E)-

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics 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 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
Δfgas40.1 ± 0.6kcal/molChydFang and Rogers, 1992ALS

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
9.80450.Thermodynamics Research Center, 1997GT
13.26100.
16.30150.
19.44200.
24.587273.15
26.439298.15
26.575300.
33.779400.
40.043500.
45.232600.
49.541700.
53.169800.
56.257900.
58.9051000.
61.1851100.
63.1551200.
64.8591300.
66.3381400.
67.6241500.

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
Δcliquid-867. ± 3.kcal/molCcbKreysig, Friebe, et al., 1968Benzene as standard substance; Corresponding Δfliquid = 29.43 kcal/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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Tboil353.4KN/AHwa, De Benneville, et al., 1960Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Δvap4.91kcal/molVKreysig, Friebe, et al., 1968Benzene as standard substance; ALS

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:


Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
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 C6H8+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.30 ± 0.02PEAllan, Dannacher, et al., 1980LLK
8.29 ± 0.02PEBieri, Burger, et al., 1977LLK
8.27SGavin and Rice, 1974LLK
8.29PEBeez, Bieri, et al., 1973LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H3+14.65 ± 0.10C2H2+CH3?EIFranklin and Carroll, 1969RDSH
C6H7+9.95HPIPECOLias and Ausloos, 1985LBLHLM

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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.

Fang and Rogers, 1992
Fang, W.; Rogers, D.W., Enthalpy of hydrogenation of the hexadienes and cis- and trans-1,3,5-hexatriene, J. Org. Chem., 1992, 57, 2294-2297. [all data]

Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]

Kreysig, Friebe, et al., 1968
Kreysig, V.D.; Friebe, R.; Aparowsky, H.; Schirmer, J., Verbrennungsenthalpie und diamagnetische Suszeptibilitat von n-trans-Hexatrien-1,3,5, J. Prakt. Chem., 1968, 37, 329-336. [all data]

Hwa, De Benneville, et al., 1960
Hwa, J.C.H.; De Benneville, P.L.; Sims, H.J., A New Preparation of 1,3,5-Hexatriene and the Separation of Its Geometrical Isomers, J. Am. Chem. Soc., 1960, 82, 2537-40. [all data]

Allan, Dannacher, et al., 1980
Allan, M.; Dannacher, J.; Maier, J.P., Radiative and fragmentation decay of the cations of trans- and cis 1,3,5-hexatriene of all trans-1,3,5-heptatriene in the A(π-1) states, studied by emission photoelectron-photoion coincidence spectroscopy, J. Chem. Phys., 1980, 73, 3114. [all data]

Bieri, Burger, et al., 1977
Bieri, G.; Burger, F.; Heilbronner, E.; Maier, J.P., Valence ionization enrgies of hydrocarbons, Helv. Chim. Acta, 1977, 60, 2213. [all data]

Gavin and Rice, 1974
Gavin, R.M., Jr.; Rice, S.A., Spectroscopic properties of polyenes. II. The vacuum ultraviolet spectra of cis- and trans-1,3,5-hexatriene, J. Chem. Phys., 1974, 60, 3231. [all data]

Beez, Bieri, et al., 1973
Beez, M.; Bieri, G.; Bock, H.; Heilbronner, E., The ionization potentials of butadiene, hexatriene, andtheir methyl derivatives: evidence for through space interaction between double bond π-orbitals and non-bonded pseudo-π orbitals of methyl groups?, Helv. Chim. Acta, 1973, 56, 1028. [all data]

Franklin and Carroll, 1969
Franklin, J.L.; Carroll, S.R., Effect of molecular structure on ionic decomposition. II. An electron-impact study of 1,3-and 1,4-cyclohexadiene and 1,3,5-hexatriene, J. Am. Chem. Soc., 1969, 91, 6564. [all data]

Lias and Ausloos, 1985
Lias, S.G.; Ausloos, P., Structures of C6H7+ ions formed in unimolecular and bimolecular reactions, J. Chem. Phys., 1985, 82, 3613. [all data]


Notes

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