Me2C=C(Me)O anion


Gas phase ion energetics data

Go To: Top, References, Notes

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
1.27 ± 0.17D-EAChyall, Brickhouse, et al., 1994By equilibration, more substituted site is less acidic than Me by 2.3 kcal/mol

Protonation reactions

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

By formula: C5H9O- + H+ = C5H10O

Quantity Value Units Method Reference Comment
Deltar1545. ± 11.kJ/molG+TSChyall, Brickhouse, et al., 1994gas phase; By equilibration, more substituted site is less acidic than Me by 2.3 kcal/mol
Quantity Value Units Method Reference Comment
Deltar1518. ± 10.kJ/molIMREChyall, Brickhouse, et al., 1994gas phase; By equilibration, more substituted site is less acidic than Me by 2.3 kcal/mol

References

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.

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

Go To: Top, Gas phase ion energetics data, References