2-Hexene, (Z)-
- Formula: C6H12
- Molecular weight: 84.1595
- IUPAC Standard InChIKey: RYPKRALMXUUNKS-HYXAFXHYSA-N
- CAS Registry Number: 7688-21-3
- 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: cis-2-Hexene; (Z)-2-Hexene; (Z)-2-C6H12; 2-Hexene, cis-; (Z)-hex-2-ene
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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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -18.9 ± 0.24 | kcal/mol | Chyd | Rogers, Crooks, et al., 1987 | DRB |
ΔfH°liquid | -19.0 ± 0.24 | kcal/mol | Chyd | Rogers and Crooks, 1983 | DRB |
ΔfH°liquid | -19.15 ± 0.20 | kcal/mol | Eqk | Wiberg and Wasserman, 1981 | ALS |
ΔfH°liquid | -20.4 ± 0.26 | kcal/mol | Chyd | Rogers, Papadimetriou, et al., 1975 | DRB |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 69.756 | cal/mol*K | N/A | Messerly, Todd, et al., 1990 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
42.629 | 298.15 | Messerly, Todd, et al., 1990 | T = 10 to 330 K.; DH |
Reaction thermochemistry data
Go To: Top, Condensed phase 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 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: H2 + C6H12 = C6H14
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -28.56 ± 0.16 | kcal/mol | Chyd | Rogers, Crooks, et al., 1987 | liquid phase |
ΔrH° | -28.44 ± 0.19 | kcal/mol | Chyd | Rogers and Crooks, 1983 | liquid phase; solvent: Hexane |
ΔrH° | -27.05 ± 0.22 | kcal/mol | Chyd | Rogers, Papadimetriou, et al., 1975 | liquid phase; solvent: Hexane |
By formula: C6H12 = C6H12
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -1.86 ± 0.04 | kcal/mol | Eqk | Wiberg and Wasserman, 1981 | liquid phase; Trifluoroacetolysis |
ΔrH° | -2.75 ± 0.24 | kcal/mol | Ciso | Bartolo and Rossini, 1960 | liquid phase; Calculated from ΔHc |
By formula: C2HF3O2 + C6H12 = C8H13F3O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -10.220 ± 0.030 | kcal/mol | Eqk | Wiberg and Wasserman, 1981 | liquid phase; Trifluoroacetolysis |
References
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Rogers, Crooks, et al., 1987
Rogers, D.W.; Crooks, E.; Dejroongruang, K.,
Enthalpies of hydrogenation of the hexenes,
J. Chem. Thermodyn., 1987, 19, 1209-1215. [all data]
Rogers and Crooks, 1983
Rogers, D.W.; Crooks, E.L.,
Enthalpies of hydrogenation of the isomers of n-hexene,
J. Chem. Thermodyn., 1983, 15, 1087-1092. [all data]
Wiberg and Wasserman, 1981
Wiberg, K.B.; Wasserman, D.J.,
Enthalpies of hydration of alkenes. 1. The n-hexenes,
J. Am. Chem. Soc., 1981, 103, 6563-6566. [all data]
Rogers, Papadimetriou, et al., 1975
Rogers, D.W.; Papadimetriou, P.M.; Siddiqui, N.A.,
An improved hydrogen microcalorimeter for use with large molecules,
Mikrochim. Acta, 1975, 2, 389-400. [all data]
Messerly, Todd, et al., 1990
Messerly, J.F.; Todd, S.S.; Finke, H.L.; Lee-Bechtold, S.H.; Guthrie, G.B.; Steele, W.V.; Chirico, R.D.,
Heat capacities of pent-1-ene (10K to 320K), cis-hex-2-ene (10K to 330K), non-1-ene (10K to 400K), and hexadec-1-ene (10K to 400K),
J. Chem. Thermodynam., 1990, 22, 1107-1128. [all data]
Bartolo and Rossini, 1960
Bartolo, H.F.; Rossini, F.D.,
Heats of isomerization of the seventeen isomeric hexenes,
J. Phys. Chem., 1960, 64, 1685-1689. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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