2-Pentene, 4-methyl-, (Z)-

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Reaction 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

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

Hydrogen + 2-Pentene, 4-methyl-, (Z)- = Pentane, 2-methyl-

By formula: H2 + C6H12 = C6H14

Quantity Value Units Method Reference Comment
Δr-116.9 ± 0.38kJ/molChydRogers, Crooks, et al., 1987liquid phase
Δr-114.kJ/molChydTurner, Nettleton, et al., 1958liquid phase; solvent: Acetic acid

1-Hexene = 2-Pentene, 4-methyl-, (Z)-

By formula: C6H12 = C6H12

Quantity Value Units Method Reference Comment
Δr-14.6 ± 0.75kJ/molCisoBartolo and Rossini, 1960liquid phase; Calculated from ΔHc

2-Pentene, 4-methyl-, (Z)- = 1-Pentene, 2-methyl-

By formula: C6H12 = C6H12

Quantity Value Units Method Reference Comment
Δr-2.0 ± 0.3kJ/molEqkYursha and Kabo, 1976liquid phase; At 394.5K

2-Pentene, 4-methyl-, (E)- = 2-Pentene, 4-methyl-, (Z)-

By formula: C6H12 = C6H12

Quantity Value Units Method Reference Comment
Δr3.64 ± 0.75kJ/molEqkRadyuk, Kabo, et al., 1972gas phase; At 490 K

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 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)8.98 ± 0.01eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
8.98 ± 0.02PEBieri, Burger, et al., 1977LLK
8.976 ± 0.005PEMasclet, Grosjean, et al., 1973LLK

References

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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]

Turner, Nettleton, et al., 1958
Turner, R.B.; Nettleton, J.E.; Perelman, Heats of Hydrogenation. VI. Heats of hydrogenation of some substituted ethylenes, J. Am. Chem. Soc., 1958, 80, 1430-1433. [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]

Yursha and Kabo, 1976
Yursha, I.A.; Kabo, G.Ya., Equilibrium isomerisation and thermodynamic properties of 2-methylpentenes, Russ. J. Phys. Chem. (Engl. Transl.), 1976, 50, 330, In original 558. [all data]

Radyuk, Kabo, et al., 1972
Radyuk, Z.A.; Kabo, G.Ya.; Andreevskii, D.N., Equilibrium and thermodynamics of the isomerization of hexene isomers, Neftekhimiya, 1972, 12, 679-686. [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]

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]


Notes

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