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5,5-diMe-1,3-cyclohexandion-2-ide 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
2.89 ± 0.13D-EACumming and Kebarle, 1978Acid: dimedone

Protonation reactions

C8H11O2- + Hydrogen cation = 1,3-Cyclohexanedione, 5,5-dimethyl-

By formula: C8H11O2- + H+ = C8H12O2

Quantity Value Units Method Reference Comment
Deltar1418. ± 8.8kJ/molG+TSCumming and Kebarle, 1978gas phase; Acid: dimedone
Quantity Value Units Method Reference Comment
Deltar1385. ± 8.4kJ/molIMRECumming and Kebarle, 1978gas phase; Acid: dimedone

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]


Notes

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