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Ethane, 1,2-dimethoxy-

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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:
MM - Michael M. Meot-Ner (Mautner)
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

Quantity Value Units Method Reference Comment
IE (evaluated)9.3eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)205.1kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity196.0kcal/molN/AHunter and Lias, 1998HL

Proton affinity at 298K

Proton affinity (kcal/mol) Reference Comment
202.1 ± 0.5Morlender-Vais and Holmes, 2001Plots of lnR (dissociation product ratio RH+/MH+) vs. PA(B) in metastable ion and CID experiments.; MM

Ionization energy determinations

IE (eV) Method Reference Comment
9.3PEBaker, Armen, et al., 1983LBLHLM
9.2PEKimura, Katsumata, et al., 1981LLK
9.9PEBaker, Armen, et al., 1983Vertical value; LBLHLM
9.78PEKimura, Katsumata, et al., 1981Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H5O+10.36 ± 0.05CH3OCH2EIHolmes and Lossing, 1984LBLHLM
C2H5O+10.27CH3OCH2EILossing, 1977LLK

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.

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]

Morlender-Vais and Holmes, 2001
Morlender-Vais, N.; Holmes, J.L., Proton affinities of two weakly bidentate molecules: 1,2-Dimethoxyethane and methoxyacetone, Int. J. Mass Spectrom., 2001, 210/211, 147. [all data]

Baker, Armen, et al., 1983
Baker, A.D.; Armen, G.H.; Funaro, S., Oral levels of crown ethers and related macrocycles studies by ultraviolet photoelectron spectroscopy: Relationship to complexation studies, J. Chem. Soc. Dalton Trans., 1983, 2519. [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 and Lossing, 1984
Holmes, J.L.; Lossing, F.P., Heats of formation of organic radicals from appearance energies, Int. J. Mass Spectrom. Ion Processes, 1984, 58, 113. [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]


Notes

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