1,3,5-Hexatriene, (E)-
- Formula: C6H8
- Molecular weight: 80.1277
- IUPAC Standard InChIKey: AFVDZBIIBXWASR-AATRIKPKSA-N
- CAS Registry Number: 821-07-8
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Stereoisomers:
- Other names: (E)-1,3,5-Hexatriene; trans-Hexatriene; trans-1,3,5-Hexatriene; 1,3,5-Hexatriene, trans-; (E)-CH2=CHCH=CHCH=CH2
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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 |
---|---|---|---|---|---|
ΔfH°gas | 40.1 ± 0.6 | kcal/mol | Chyd | Fang and Rogers, 1992 | ALS |
Constant pressure heat capacity of gas
Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
9.804 | 50. | Thermodynamics Research Center, 1997 | GT |
13.26 | 100. | ||
16.30 | 150. | ||
19.44 | 200. | ||
24.587 | 273.15 | ||
26.439 | 298.15 | ||
26.575 | 300. | ||
33.779 | 400. | ||
40.043 | 500. | ||
45.232 | 600. | ||
49.541 | 700. | ||
53.169 | 800. | ||
56.257 | 900. | ||
58.905 | 1000. | ||
61.185 | 1100. | ||
63.155 | 1200. | ||
64.859 | 1300. | ||
66.338 | 1400. | ||
67.624 | 1500. |
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 |
---|---|---|---|---|---|
ΔcH°liquid | -867. ± 3. | kcal/mol | Ccb | Kreysig, Friebe, et al., 1968 | Benzene as standard substance; Corresponding ΔfHºliquid = 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 |
---|---|---|---|---|---|
Tboil | 353.4 | K | N/A | Hwa, De Benneville, et al., 1960 | Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 4.91 | kcal/mol | V | Kreysig, Friebe, et al., 1968 | Benzene as standard substance; ALS |
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:
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 ± 0.02 | PE | Allan, Dannacher, et al., 1980 | LLK |
8.29 ± 0.02 | PE | Bieri, Burger, et al., 1977 | LLK |
8.27 | S | Gavin and Rice, 1974 | LLK |
8.29 | PE | Beez, Bieri, et al., 1973 | LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H3+ | 14.65 ± 0.10 | C2H2+CH3? | EI | Franklin and Carroll, 1969 | RDSH |
C6H7+ | 9.95 | H | PIPECO | Lias and Ausloos, 1985 | LBLHLM |
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
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Cp,gas Constant pressure heat capacity of gas Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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