Ethylene oxide

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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:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
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 C2H4O+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)10.56 ± 0.01eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)774.2kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity745.3kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
10.15 ± 0.05EIHolmes and Lossing, 1991LL
10.4 ± 0.1PEAue, Webb, et al., 1980LLK
10.4PEAue and Bowers, 1979LLK
10.57EIHolmes, Terlouw, et al., 1976LLK
10.6 ± 0.1PICorderman, LeBreton, et al., 1976LLK
10.560PECorderman, LeBreton, et al., 1976LLK
10.56 ± 0.01PIKrassig, Reinke, et al., 1974LLK
10.57PEBasch, Robin, et al., 1969RDSH
10.566SLowrey and Watanabe, 1958RDSH
10.57 ± 0.01PIWatanabe, 1957RDSH
10.57EIVorob'ev, Furlei, et al., 1989Vertical value; LL
10.57PIPECOJohnson, Powis, et al., 1982Vertical value; LBLHLM
10.57PEBieri, Asbrink, et al., 1982Vertical value; LBLHLM
10.57PEKimura, Katsumata, et al., 1981Vertical value; LLK
10.568PEAue, Webb, et al., 1975Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CH+22.8 ± 0.4?EIGallegos and Kiser, 1961RDSH
CHO+11.54 ± 0.03CH3PIKrassig, Reinke, et al., 1974LLK
CHO+12.2 ± 0.1CH3EIGallegos and Kiser, 1961RDSH
CH2+14.66 ± 0.09?PIKrassig, Reinke, et al., 1974LLK
CH2+16.5 ± 0.4?EIGallegos and Kiser, 1961RDSH
CH3+13.06 ± 0.05CO+HPIKrassig, Reinke, et al., 1974LLK
CH3+14.3 ± 0.2?EIGallegos and Kiser, 1961RDSH
CH4+11.79 ± 0.03COPIKrassig, Reinke, et al., 1974LLK
CH4+12.3 ± 0.2COEIGallegos and Kiser, 1961RDSH
CO+12.6 ± 0.4CH4EIGallegos and Kiser, 1961RDSH
C2H+24.0 ± 0.3?EIGallegos and Kiser, 1961RDSH
C2H2+15.7 ± 0.3H2O?EIGallegos and Kiser, 1961RDSH
C2H2O+13.07 ± 0.05H2?PIKrassig, Reinke, et al., 1974LLK
C2H2O+14.0 ± 0.32H?EIGallegos and Kiser, 1961RDSH
C2H3+12.92 ± 0.08OHPIKrassig, Reinke, et al., 1974LLK
C2H3+14.3 ± 0.2OHEIGallegos and Kiser, 1961RDSH
C2H3O+11.53 ± 0.05HEIBurgers and Holmes, 1982LBLHLM
C2H3O+11.62 ± 0.05HPIKrassig, Reinke, et al., 1974LLK
C2H3O+12.1 ± 0.2HEIGallegos and Kiser, 1961RDSH


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.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, . [all data]

Holmes and Lossing, 1991
Holmes, J.L.; Lossing, F.P., Ionization energies of homologous organic compounds and correlation with molecular size, Org. Mass Spectrom., 1991, 26, 537. [all data]

Aue, Webb, et al., 1980
Aue, D.H.; Webb, H.M.; Davidson, W.R.; Vidal, M.; Bowers, M.T.; Goldwhite, H.; Vertal, L.E.; Douglas, J.E.; Kollman, P.A.; Kenyon, G.L., Proton affinities photoelectron spectra of three-membered-ring J. Heterocycl. Chem., J. Am. Chem. Soc., 1980, 102, 5151. [all data]

Aue and Bowers, 1979
Aue, D.H.; Bowers, M.T., Chapter 9. Stabilities of positive ions from equilibrium gas phase basicity measurements in Ions Chemistry,, ed. M.T. Bowers, 1979. [all data]

Holmes, Terlouw, et al., 1976
Holmes, J.L.; Terlouw, J.K.; Lossing, F.P., The thermochemistry of C2H4O+ ions, J. Phys. Chem., 1976, 80, 2860. [all data]

Corderman, LeBreton, et al., 1976
Corderman, R.R.; LeBreton, P.R.; Buttrill, S.E., Jr.; Williamson, A.D.; Beauchamp, J.L., Photoionization and ion cyclotron resonance studies of the ion chemistry of ethylene oxide, J. Chem. Phys., 1976, 65, 4929. [all data]

Krassig, Reinke, et al., 1974
Krassig, R.; Reinke, D.; Baumgartel, H., Photo-reaktionen kleiner organischer molekule II. Die photoionenspektren der Isomeren propylen-cyclopropan und acetaldehyd-athylenoxyd, Ber. Bunsen-Ges. Phys. Chem., 1974, 78, 425. [all data]

Basch, Robin, et al., 1969
Basch, H.; Robin, M.B.; Kuebler, N.A.; Baker, C.; Turner, D.W., Optical and photoelectron spectra of small rings. III. The saturated three-membered rings, J. Chem. Phys., 1969, 51, 52. [all data]

Lowrey and Watanabe, 1958
Lowrey, A., III; Watanabe, K., Absorption and ionization coefficients of ethylene oxide, J. Chem. Phys., 1958, 28, 208. [all data]

Watanabe, 1957
Watanabe, K., Ionization potentials of some molecules, J. Chem. Phys., 1957, 26, 542. [all data]

Vorob'ev, Furlei, et al., 1989
Vorob'ev, A.S.; Furlei, I.I.; Sultanov, A.S.; Khvostenko, V.I.; Leplyanin, G.V.; Derzhinskii, A.R.; Tolstikov, G.A., Mass spectrometry of reasonance capture of electrons and photoelectron spectroscopy of molecules of ethylene oxide, ethylene sulfide, and their derivatives, Bull. Acad. Sci. USSR, Div. Chem. Sci., 1989, 1388. [all data]

Johnson, Powis, et al., 1982
Johnson, K.; Powis, I.; Danby, C.J., A photoelectron-photoion coincidence study of acetaldehyde and ethylene oxide molecular ions, Chem. Phys., 1982, 70, 329. [all data]

Bieri, Asbrink, et al., 1982
Bieri, G.; Asbrink, L.; Von Niessen, W., 30.4-nm He(II) photoelectron spectra of organic molecules, J. Electron Spectrosc. Relat. Phenom., 1982, 27, 129. [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Aue, Webb, et al., 1975
Aue, D.H.; Webb, H.M.; Bowers, M.T., Proton affinities, ionization potentials, and hydrogen affinities of nitrogen and oxygen bases. Hybridization effects, J. Am. Chem. Soc., 1975, 97, 4137. [all data]

Gallegos and Kiser, 1961
Gallegos, E.J.; Kiser, R.W., Electron impact spectroscopy of ethylene oxide and propylene oxide, J. Am. Chem. Soc., 1961, 83, 773. [all data]

Burgers and Holmes, 1982
Burgers, P.C.; Holmes, J.L., Metastable ion studies. XIII. The measurement of appearance energies of metastable peaks, Org. Mass Spectrom., 1982, 17, 123. [all data]


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