Bicyclo[3.2.1]octa-2,6-diene


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
Δfgas158. ± 0.8kJ/molChydRoth, Adamczak, et al., 1991 
Δfgas159. ± 6.3kJ/molCcbHassenruck, Martin, et al., 1987 

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
Δfliquid120. ± 3.kJ/molCcbHassenruck, Martin, et al., 1987 

Phase change 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: Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Δvap39.0kJ/molN/AHassenruck, Martin, et al., 1987 

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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C8H10+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
8.44 ± 0.01PIDemeo and El-Sayed, 1970RDSH

De-protonation reactions

C8H9- + Hydrogen cation = Bicyclo[3.2.1]octa-2,6-diene

By formula: C8H9- + H+ = C8H10

Quantity Value Units Method Reference Comment
Δr1588. ± 8.8kJ/molG+TSLee and Squires, 1986gas phase; 1.4 kcal > MeOH; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr1559. ± 8.4kJ/molIMRELee and Squires, 1986gas phase; 1.4 kcal > MeOH; value altered from reference due to change in acidity scale; B

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.

Roth, Adamczak, et al., 1991
Roth, W.R.; Adamczak, O.; Breuckmann, R.; Lennartz, H.-W.; Boese, R., Die Berechnung von Resonanzenergien; das MM2ERW-Kraftfeld, Chem. Ber., 1991, 124, 2499-2521. [all data]

Hassenruck, Martin, et al., 1987
Hassenruck, K.; Martin, H.-D.; Mayer, B.; Urbanek, T.; Zirwes, T.; Walsh, R.; Beckhaus, H.-D., An Experimental Approach to the C8H10 Hypersurface. Kinetic and Thermochemical Investigations on a Formally Forbidden Ground-state [2σ + 2π] Cycloaddition, Chem. Ber., 1987, 120, 177-186. [all data]

Demeo and El-Sayed, 1970
Demeo, D.A.; El-Sayed, M.A., Ionization potential and structure of olefins, J. Chem. Phys., 1970, 52, 2622. [all data]

Lee and Squires, 1986
Lee, R.E.; Squires, R.R., Anionic homoaromaticity: A gas phase experimental study, J. Am. Chem. Soc., 1986, 105, 5078. [all data]


Notes

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