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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Reaction thermochemistry data
Go To: Top, Gas phase ion energetics data, UV/Visible spectrum, 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 |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, UV/Visible spectrum, 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
View reactions leading to C6H12+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.97 ± 0.01 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.969 ± 0.005 | PE | Masclet, Grosjean, et al., 1973 | LLK |
9.15 ± 0.01 | PE | Krause, Taylor, et al., 1978 | Vertical value; LLK |
UV/Visible spectrum
Go To: Top, Reaction thermochemistry 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 by: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina
Spectrum
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Additional Data
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Source | Jones and Taylor, 1955 |
---|---|
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. 891 |
Instrument | Beckman DU |
Melting point | -141.1 |
Boiling point | 68.8 |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, UV/Visible spectrum, 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]
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]
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]
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]
Masclet, Grosjean, et al., 1973
Masclet, P.; Grosjean, D.; Mouvier, G.,
Alkene ionization potentials. Part I. Quantitative determination of alkyl group structural effects,
J. Electron Spectrosc. Relat. Phenom., 1973, 2, 225. [all data]
Krause, Taylor, et al., 1978
Krause, D.A.; Taylor, J.W.; Fenske, R.F.,
An analysis of the effects of alkyl substituents on the ionization potentials of n-alkenes,
J. Am. Chem. Soc., 1978, 100, 718. [all data]
Jones and Taylor, 1955
Jones, L.C., Jr.; Taylor, L.W.,
Far ultraviolet absorption spectra of unsaturated and aromatic hydrocarbons,
Anal. Chem., 1955, 27, 2, 228-237. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, UV/Visible spectrum, References
- Symbols used in this document:
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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