1,3-Cyclohexanedione

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Gas phase 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas-80.21 ± 0.38kcal/molCcbPilcher, Parchment, et al., 1993 

Condensed phase 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfsolid-101.7 ± 0.26kcal/molCcbPilcher, Parchment, et al., 1993 
Quantity Value Units Method Reference Comment
Δcsolid-735.9 ± 0.2kcal/molCcbPilcher, Parchment, et al., 1993Corresponding Δfsolid = -101.7 kcal/mol (simple calculation by NIST; no Washburn corrections)

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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C6H8O2+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)210.6kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity203.0kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.52 ± 0.05PEHouk, Davis, et al., 1973LLK
9.60PEGleiter, Hofmann, et al., 1980Vertical value; LLK

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.

Pilcher, Parchment, et al., 1993
Pilcher, G.; Parchment, O.G.; Hillier, I.H.; Heatley, F.; Fletcher, D.; Ribeiro da Silva, M.A.V.; Ferrao, M.L.C.C.H.; Monte, J.S.; Jiye, F., Thermochemical and theoretical studies on cyclohexanediones, J. Phys. Chem., 1993, 97, 243-247. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Houk, Davis, et al., 1973
Houk, K.N.; Davis, L.P.; Newkome, G.R.; Duke, R.E., Jr.; Nauman, R.V., Photoelectron spectroscopy of cyclic β-diketones their enolone tautomers, J. Am. Chem. Soc., 1973, 95, 8364. [all data]

Gleiter, Hofmann, et al., 1980
Gleiter, R.; Hofmann, P.; Schang, P.; Sieber, A., The orbital sequence in cyclic 1,3-diketones, Tetrahedron, 1980, 36, 655. [all data]


Notes

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