2-Octanone

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Reaction thermochemistry 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 as indicated in comments:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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Individual Reactions

C8H15O- + Hydrogen cation = 2-Octanone

By formula: C8H15O- + H+ = C8H16O

Quantity Value Units Method Reference Comment
Δr364.4 ± 2.1kcal/molTDEqBurkell, Fridgen, et al., 2003gas phase; B
Quantity Value Units Method Reference Comment
Δr357.5 ± 2.1kcal/molTDEqBurkell, Fridgen, et al., 2003gas phase; B

2-Octanol = 2-Octanone + Hydrogen

By formula: C8H18O = C8H16O + H2

Quantity Value Units Method Reference Comment
Δr12.66kcal/molEqkCubberley and Mueller, 1946gas phase; ALS

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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
9.75EIPotzinger and Bunau, 1969RDSH
9.40 ± 0.03PIVilesov, 1960RDSH
9.38PEBenoit and Harrison, 1977Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C2H3O+12.04?EIPotzinger and Bunau, 1969RDSH
C6H13+10.21?EIPotzinger and Bunau, 1969RDSH
C7H13O+9.85CH3EIPotzinger and Bunau, 1969RDSH

De-protonation reactions

C8H15O- + Hydrogen cation = 2-Octanone

By formula: C8H15O- + H+ = C8H16O

Quantity Value Units Method Reference Comment
Δr364.4 ± 2.1kcal/molTDEqBurkell, Fridgen, et al., 2003gas phase; B
Quantity Value Units Method Reference Comment
Δr357.5 ± 2.1kcal/molTDEqBurkell, Fridgen, et al., 2003gas phase; B

References

Go To: Top, Reaction thermochemistry data, 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.

Burkell, Fridgen, et al., 2003
Burkell, J.L.; Fridgen, T.D.; McMahon, T.B., Gas-phase acidities and sites of deprotonation of 2-ketones and structures of the corresponding enolates, Int. J. Mass Spectrom., 2003, 227, 3, 497-508, https://doi.org/10.1016/S1387-3806(03)00102-7 . [all data]

Cubberley and Mueller, 1946
Cubberley, A.H.; Mueller, M.B., Equilibrium studies on the dehydrogenation of primary and secondary alcohols. I. 2-Butanol, 2-octanol, cyclopentanol and benzyl alcohol, J. Am. Chem. Soc., 1946, 68, 1149-1151. [all data]

Potzinger and Bunau, 1969
Potzinger, P.; Bunau, G.v., Empirische Beruksichtigung von Uberschussenergien bei der Auftrittspotentialbestimmung, Ber. Bunsen-Ges. Phys. Chem., 1969, 73, 466. [all data]

Vilesov, 1960
Vilesov, F.I., The photoionization of vapors of compounds whose molecules contain carbonyl groups, Dokl. Phys. Chem., 1960, 132, 521, In original 1332. [all data]

Benoit and Harrison, 1977
Benoit, F.M.; Harrison, A.G., Predictive value of proton affinity. Ionization energy correlations involving oxygenated molecules, J. Am. Chem. Soc., 1977, 99, 3980. [all data]


Notes

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