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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

Data compiled as indicated in comments:
B - John E. Bartmess

View reactions leading to C2H3O+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)185.kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity177.2kcal/molN/AHunter and Lias, 1998HL

Electron affinity determinations

EA (eV) Method Reference Comment
1.820 ± 0.010LPESGoebbert, Khuseynov, et al., 2011B
1.82481LPESMead, Lykke, et al., 1984Uncertainty: 6 millical/mol (0.26 micro-eV).Dipolebound state at ca. 14.3 cal/mol (5 cm-1); B
1.817 ± 0.023LPESEllison, Engleking, et al., 1982B
1.795 ± 0.015LPESAlconcel, Deyerl, et al., 1999B
1.8240 ± 0.0050LPDJackson, Hiberty, et al., 1981Bands due to dipole-supported state observed.; B
1.808 ± 0.061PDZimmerman, Reed, et al., 1977B


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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]

Goebbert, Khuseynov, et al., 2011
Goebbert, D.J.; Khuseynov, D.; Sanov, A., O- + Acetaldehyde Reaction Products: Search for Singlet Formylmethylene, a Wolff Rearrangement intermediate, J. Phys. Chem. A, 2011, 115, 15, 3208-3217, https://doi.org/10.1021/jp112331y . [all data]

Mead, Lykke, et al., 1984
Mead, R.D.; Lykke, K.R.; Lineberger, W.C.; Marks, J.; Brauman, J.I., Spectroscopy and Dynamics of the Dipole-Bound State of Acetaldehyde Enolate., J. Chem. Phys., 1984, 81, 11, 4883., https://doi.org/10.1063/1.447515 . [all data]

Ellison, Engleking, et al., 1982
Ellison, G.B.; Engleking, P.C.; Lineberger, W.C., Photoelectron spectroscopy of alkoxide and enolate negative ions, J. Phys. Chem., 1982, 86, 4873. [all data]

Alconcel, Deyerl, et al., 1999
Alconcel, L.S.; Deyerl, H.J.; Zengin, V.; Continetti, R.E., Structure and energetics of vinoxide and the X((2)A) and A((2)A') vinoxy radicals, J. Phys. Chem. A, 1999, 103, 46, 9190-9194, https://doi.org/10.1021/jp992126s . [all data]

Jackson, Hiberty, et al., 1981
Jackson, R.L.; Hiberty, P.C.; Brauman, J.I., Threshold Resonances in the Electron Photodetachment spectrum of Acetaldehyde Anion. Evidence for a low-lying Dipole Supported State., J. Chem. Phys., 1981, 74, 7, 3705, https://doi.org/10.1063/1.441598 . [all data]

Zimmerman, Reed, et al., 1977
Zimmerman, A.H.; Reed, K.J.; Brauman, J.I., Photodetachment of electrons from enolate anions. Gas phase electron affinities of enolate radicals, J. Am. Chem. Soc., 1977, 99, 7203. [all data]


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