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1,3-Cyclohexanedione, 5,5-dimethyl-

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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
Deltafgas-383.6 ± 1.9kJ/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
Deltafsolid-483.4 ± 1.6kJ/molCcbPilcher, Parchment, et al., 1993 
Quantity Value Units Method Reference Comment
Deltacsolid-4379.7 ± 1.2kJ/molCcbPilcher, Parchment, et al., 1993Corresponding «DELTA»fsolid = -483.4 kJ/mol (simple calculation by NIST; no Washburn corrections)

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 by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual 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

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes

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]

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

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, References