2-Methyl-1-butene

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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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
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 C5H10+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)9.12 ± 0.01eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
9.10PITraeger, 1986LBLHLM
9.148 ± 0.003PEMasclet, Grosjean, et al., 1973LLK
9.12EILossing, 1972LLK
9.35 ± 0.08EIGross and Wilkins, 1971LLK
9.12 ± 0.02PIDemeo and El-Sayed, 1970RDSH
9.12 ± 0.02PIWatanabe, Nakayama, et al., 1962RDSH
9.2 ± 0.1PEBieri, Burger, et al., 1977Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H6+11.66 ± 0.06C2H4EIGross and Wilkins, 1971LLK
C4H7+10.66CH3PITraeger, 1986LBLHLM
C4H7+10.85CH3EIBrand and Baer, 1984LBLHLM
C4H7+10.85CH3EILossing, 1972LLK
C4H7+11.34 ± 0.07CH3EIGross and Wilkins, 1971LLK

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.

Traeger, 1986
Traeger, J.C., Heat of formation for the 1-methylallyl cation by photoionization mass spectrometry, J. Phys. Chem., 1986, 90, 4114. [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]

Lossing, 1972
Lossing, F.P., Free radicals by mass spectrometry. XLV. Ionization potentials and heats of formation of C3H3, C3H5, and C4H7 radicals and ions, Can. J. Chem., 1972, 50, 3973. [all data]

Gross and Wilkins, 1971
Gross, M.L.; Wilkins, C.L., Computer-assisted ion cyclotron resonance appearance potential measurements for C5H10 isomers, Anal. Chem., 1971, 43, 1624. [all data]

Demeo and El-Sayed, 1970
Demeo, D.A.; El-Sayed, M.A., Ionization potential and structure of olefins, J. Chem. Phys., 1970, 52, 2622. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [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]

Brand and Baer, 1984
Brand, W.A.; Baer, T., Dissociation dynamics of energy-selected C5H10+ ions, J. Am. Chem. Soc., 1984, 106, 3154. [all data]


Notes

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