CH2=C(iPr)O anion


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 by: John E. Bartmess

Electron affinity of neutral species

EAneutral (eV) Method Reference Comment
1.83 ± 0.13D-EACumming and Kebarle, 1978Structure assignment revised to less-substituted site: Chyall, Brickhouse, et al., 1994

Protonation reactions

C5H9O- + Hydrogen cation = 2-Butanone, 3-methyl-

By formula: C5H9O- + H+ = C5H10O

Quantity Value Units Method Reference Comment
Deltar1537. ± 9.2kJ/molG+TSCumming and Kebarle, 1978gas phase; Structure assignment revised to less-substituted site: Chyall, Brickhouse, et al., 1994
Quantity Value Units Method Reference Comment
Deltar1508. ± 8.4kJ/molIMRECumming and Kebarle, 1978gas phase; Structure assignment revised to less-substituted site: Chyall, Brickhouse, et al., 1994

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.

Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P., Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A), Can. J. Chem., 1978, 56, 1. [all data]

Chyall, Brickhouse, et al., 1994
Chyall, L.J.; Brickhouse, M.D.; Schnute, M.E.; Squires, R.R., Kinetic versus thermodynamic control in the deprotonation of unsymmetrical ketones in the gas phase, J. Am. Chem. Soc., 1994, 116, 19, 8681, https://doi.org/10.1021/ja00098a031 . [all data]


Notes

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