Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

2-Cyclohexen-1-one

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C6H8O+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
9.23 ± 0.05PEHolmes, Terlouw, et al., 1979LLK
9.20PESchweig, Vermeer, et al., 1974Vertical value; LLK
9.37PEHentrich, Gunkel, et al., 1974Vertical value; LLK

De-protonation reactions

cyclohexenone-4-enolate anion + Hydrogen cation = 2-Cyclohexen-1-one

By formula: C6H7O- + H+ = C6H8O

Quantity Value Units Method Reference Comment
Deltar1496. ± 8.8kJ/molG+TSBartmess and Kiplinger, 1986gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Deltar1464. ± 8.4kJ/molIMREBartmess and Kiplinger, 1986gas phase; value altered from reference due to change in acidity scale; B

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.

Holmes, Terlouw, et al., 1979
Holmes, J.L.; Terlouw, J.K.; Vijfhuizen, P.C.; A'Campo, C., Metastable ion studies XII-Molecular and fragment ion structures for isomeric C4H6O2 acids, Org. Mass Spectrom., 1979, 14, 204. [all data]

Schweig, Vermeer, et al., 1974
Schweig, A.; Vermeer, H.; Weidner, U., A photoelectron spectroscopic study of keto-enol tautomerism in acetylacetones - a new application of photoelectron spectroscopy, Chem. Phys. Lett., 1974, 26, 229. [all data]

Hentrich, Gunkel, et al., 1974
Hentrich, G.; Gunkel, E.; Klessinger, M., Photoelektronenspektren organischer verbindungen. 4. Photoelektronenspektren ungesattigter carbonylverbindungen, J. Mol. Struct., 1974, 21, 231. [all data]

Bartmess and Kiplinger, 1986
Bartmess, J.E.; Kiplinger, J.P., 'Kinetic' vs. thermodynamic acidities of enones in the gas phase, J. Org. Chem., 1986, 51, 2173. [all data]


Notes

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