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Ethane, methoxy-

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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:
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 C3H8O+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)9.72 ± 0.07eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)193.3kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity186.7kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.72 ± 0.07EIBowen and Maccoll, 1984LBLHLM
9.86PEKimura, Katsumata, et al., 1981LLK
9.72EIHolmes, Fingas, et al., 1981LLK
9.5PEAue and Bowers, 1979LLK
9.6 ± 0.1EIIvko, 1970RDSH
9.72PEHoppilliard and Solgadi, 1980Vertical value; LLK
9.81PEAue and Bowers, 1979Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CH3+15.02?EIHaney and Franklin, 1969RDSH
CH3O+<=11.7C2H5EILossing, 1977LLK
CH3O+12.9 ± 0.1C2H5EIIvko, 1970RDSH
CH3O+12.50C2H5EIHaney and Franklin, 1969RDSH
C2H5O+10.47 ± 0.08CH3EIBowen and Maccoll, 1984LBLHLM
C2H5O+10.47CH3EILossing, 1977LLK
C2H5O+10.9 ± 0.1CH3EIIvko, 1970RDSH
C2H5O+11.30CH3EIHaney and Franklin, 1969RDSH
C2H5O+10.96CH3EIHarrison, Ivko, et al., 1966RDSH
C3H7O+10.32 ± 0.08HEIBowen and Maccoll, 1984LBLHLM
C3H7O+10.32HEILossing, 1977LLK
C3H7O+10.3 ± 0.1HEIIvko, 1970RDSH
C3H7O+10.3HEIHarrison, Ivko, et al., 1966RDSH


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, https://doi.org/10.1063/1.556018 . [all data]

Bowen and Maccoll, 1984
Bowen, R.D.; Maccoll, A., Low energy, low temperature mass spectra, Org. Mass Spectrom., 1984, 19, 379. [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]

Holmes, Fingas, et al., 1981
Holmes, J.L.; Fingas, M.; Lossing, F.P., Towards a general scheme for estimating the heats of formation of organic ions in the gas phase. Part I. Odd-electron cations, Can. J. Chem., 1981, 59, 80. [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]

Ivko, 1970
Ivko, A.A., Use of mass spectroscopy and isotope labelling for determining the structure of ions and molecules, Org. Katal., 1970, 20. [all data]

Hoppilliard and Solgadi, 1980
Hoppilliard, Y.; Solgadi, D., Conformational analysis of 2-haloethanols and 2-methoxyethylhalides in a photoelectron spectrometer, Tetrahedron, 1980, 36, 377. [all data]

Haney and Franklin, 1969
Haney, M.A.; Franklin, J.L., Excess energies in mass spectra of some oxygen-containing organic compounds, J. Chem. Soc. Faraday Trans., 1969, 65, 1794. [all data]

Lossing, 1977
Lossing, F.P., Heats of formation of some isomeric [CnH2n+1]+ ions. Substitutional effects on ion stability, J. Am. Chem. Soc., 1977, 99, 7526. [all data]

Harrison, Ivko, et al., 1966
Harrison, A.G.; Ivko, A.; Van Raalte, D., Energetics of formation of some oxygenated ions and the proton affinities of carbonyl compounds, Can. J. Chem., 1966, 44, 1625. [all data]


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