Cyclohexene, 3-methyl-

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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 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 C7H12+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.89 ± 0.01PERang, Paldoia, et al., 1974LLK
8.94 ± 0.03EIWinters and Collins, 1968RDSH
9.12PEBrown, Buschek, et al., 1983Vertical value; LBLHLM

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H3+13.85 ± 0.08?EIWinters and Collins, 1968RDSH
C3H5+13.29 ± 0.11?EIWinters and Collins, 1968RDSH
C4H5+13.42 ± 0.07?EIWinters and Collins, 1968RDSH
C4H6+10.94 ± 0.04?EIWinters and Collins, 1968RDSH
C4H7+11.22 ± 0.05?EIWinters and Collins, 1968RDSH
C5H7+10.43 ± 0.05C2H5EIWinters and Collins, 1968RDSH
C5H8+10.50 ± 0.04C2H4EIWinters and Collins, 1968RDSH
C6H9+10.20CH3EILossing and Holmes, 1984LBLHLM
C6H9+9.98 ± 0.07CH3EIWinters and Collins, 1968RDSH


Go To: Top, 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.

Rang, Paldoia, et al., 1974
Rang, S.; Paldoia, P.; Talvari, A., Ionization potentials of unsaturated hydrocarbons. 2. Mono-substituted cyclopentenes and cyclohexenes, Eesti. NSV Tead. Akad. Toim., 1974, 354. [all data]

Winters and Collins, 1968
Winters, R.E.; Collins, J.H., Mass spectrometric studies of structural isomers. I. Mono- and bicyclic C7H12 molecules, J. Am. Chem. Soc., 1968, 90, 1235. [all data]

Brown, Buschek, et al., 1983
Brown, R.S.; Buschek, J.M.; Kopecky, K.R.; Miller, A.J., Photoelectron spectra of syn- and anti-sesquinorbornene. Evidence for vertical Σ-π delocalization in bicyclo[2.2.1]heptene, J. Org. Chem., 1983, 48, 3692. [all data]

Lossing and Holmes, 1984
Lossing, F.P.; Holmes, J.L., Stabilization energy and ion size in carbocations in the gas phase, J. Am. Chem. Soc., 1984, 106, 6917. [all data]


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