1,5-Hexadiene
- Formula: C6H10
- Molecular weight: 82.1436
- IUPAC Standard InChIKey: PYGSKMBEVAICCR-UHFFFAOYSA-N
- CAS Registry Number: 592-42-7
- 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. - Other names: α,Ω-Hexadiene; Biallyl; Diallyl; Hexa-1,5-diene; CH2=CHCH2CH2CH=CH2; Hexadiene
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Reaction thermochemistry data
Go To: Top, 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 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
By formula: 2H2 + C6H10 = C6H14
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -252. ± 2. | kJ/mol | Chyd | Fang and Rogers, 1992 | liquid phase; solvent: Cyclohexane |
ΔrH° | -253.9 ± 2.7 | kJ/mol | Chyd | Molnar, Rachford, et al., 1984 | liquid phase; solvent: Dioxane |
ΔrH° | -251.8 ± 1.5 | kJ/mol | Chyd | Turner, Mallon, et al., 1973 | liquid phase; solvent: Glacial acetic acid |
ΔrH° | -251.2 ± 0.42 | kJ/mol | Chyd | Kistiakowsky, Ruhoff, et al., 1936 | gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -253.3 ± 0.63 kJ/mol; At 355 °K |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, References, Notes
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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C6H10+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.27 ± 0.05 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.29 ± 0.05 | EI | Wolkoff, Holmes, et al., 1980 | LLK |
9.29 | EI | Lossing and Traeger, 1975 | LLK |
9.25 | PE | Martin, Heller, et al., 1980 | Vertical value; LLK |
9.59 ± 0.02 | PE | Bunzli, Burak, et al., 1973 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H5+ | >10.9 | ? | EI | Hart and Friedli, 1970 | RDSH |
C5H7+ | 9.35 ± 0.05 | CH3 | EI | Wolkoff, Holmes, et al., 1980 | LLK |
C5H7+ | 9.29 | CH3 | EI | Lossing and Traeger, 1975, 2 | LLK |
C5H7+ | 9.35 | CH3 | EI | Lossing and Traeger, 1975 | LLK |
References
Go To: Top, 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.
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]
Molnar, Rachford, et al., 1984
Molnar, A.; Rachford, R.; Smith, G.V.; Liu, R.,
Heats of hydrogenation by a simple and rapid flow calorimetric method,
Appl. Catal., 1984, 9, 219-223. [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]
Kistiakowsky, Ruhoff, et al., 1936
Kistiakowsky, G.B.; Ruhoff, J.R.; Smith, H.A.; Vaughan, W.E.,
Heats of organic reactions. IV. Hydrogenation of some dienes and of benzene,
J. Am. Chem. Soc., 1936, 58, 146-153. [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]
Wolkoff, Holmes, et al., 1980
Wolkoff, P.; Holmes, J.L.; Lossing, F.P.,
On the formation of cyclopentenium cations from all C6H10+ molecular ion structures,
Can. J. Chem., 1980, 58, 251. [all data]
Lossing and Traeger, 1975
Lossing, F.P.; Traeger, J.C.,
Stabilization in cyclopentadienyl, cyclopentenyl, and cyclopentyl cations,
J. Am. Chem. Soc., 1975, 97, 1579. [all data]
Martin, Heller, et al., 1980
Martin, H.-D.; Heller, C.; Mayer, B.; Beckhaus, H.-D.,
Synthese bicyclischer, nicht-konjugierter Polyene. Stereochemie und transanulare Wechselwirkungen,
Chem. Ber., 1980, 113, 2589. [all data]
Bunzli, Burak, et al., 1973
Bunzli, J.C.; Burak, A.J.; Frost, D.C.,
Through-space interaction in non-conjugated acyclic dienes studied by photoelectron spectroscopy,
Tetrahedron, 1973, 29, 3735. [all data]
Hart and Friedli, 1970
Hart, P.J.; Friedli, H.R.,
Desorption of allyl radicals in the heterogeneously-catalysed oxidation of propene: mass spectrometric study,
Chem. Commun., 1970, 621. [all data]
Lossing and Traeger, 1975, 2
Lossing, F.P.; Traeger, J.C.,
Free radicals by mass spectrometry XLVI. Heats of formation of C5H7 and C5H9 radicals and cations.,
J. Am. Chem. Soc., 1975, 19, 9. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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