Bicyclo[2.2.2]octane

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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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tfus443.KN/AWalborsky and Loncrini, 1954Uncertainty assigned by TRC = 5. K; TRC
Quantity Value Units Method Reference Comment
Ttriple447.48KN/AWong and Westrum, 1970Crystal phase 1 phase; Uncertainty assigned by TRC = 0.01 K; TRC
Quantity Value Units Method Reference Comment
Δsub11.4 ± 0.2kcal/molN/ABoyd, Sanwal, et al., 1971See also Pedley and Rylance, 1977.; AC
Δsub11.5kcal/molN/AWong and Westrum, 1971DRB

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Method Reference Comment
11.1 ± 0.2323. to 363.BGBoyd, Sanwal, et al., 1971See also Pedley and Rylance, 1977 and Stephenson and Malanowski, 1987.; AC

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
2.00447.5Acree, 1991See also Westrum, Wong, et al., 1970.; AC

Enthalpy of phase transition

ΔHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
1.096164.25crystaline, IIcrystaline, IWong and Westrum, 1970, 2DH
1.995447.48crystaline, IliquidWong and Westrum, 1970, 2DH

Entropy of phase transition

ΔStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
6.661164.25crystaline, II, H and S obtained separately by graphical integration of observed Cp (or total enthalpy input) subtracting contributions from extrapolated normal Cp, H, S and T not selfcrystaline, I, consistentWong and Westrum, 1970, 2DH
4.479447.48crystaline, I, H and S obtained separately by graphical integration of observed Cp (or total enthalpy input) subtracting contributions from extrapolated normal Cp, H, S and T not selfliquid, consistentWong and Westrum, 1970, 2DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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

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

2Hydrogen + Bicyclo[2.2.2]octa-2,5-diene = Bicyclo[2.2.2]octane

By formula: 2H2 + C8H10 = C8H14

Quantity Value Units Method Reference Comment
Δr-56.21 ± 0.10kcal/molChydTurner, Meador, et al., 1957liquid phase; solvent: Acetic acid

Hydrogen + Bicyclo[2.2.2]oct-2-ene = Bicyclo[2.2.2]octane

By formula: H2 + C8H12 = C8H14

Quantity Value Units Method Reference Comment
Δr-28.25 ± 0.20kcal/molChydTurner, Meador, et al., 1957liquid phase; solvent: Acetic acid

3Hydrogen + Bicyclo[2.2.2]octa-2,5,7-triene = Bicyclo[2.2.2]octane

By formula: 3H2 + C8H8 = C8H14

Quantity Value Units Method Reference Comment
Δr-93.78 ± 0.31kcal/molChydTurner, 1964liquid phase; solvent: Acetic acid

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:
L - Sharon G. Lias

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

Quantity Value Units Method Reference Comment
IE (evaluated)9.47 ± 0.04eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
9.43SRaymonda, 1972LLK
9.45 ± 0.02PERaymonda, 1972LLK
9.53PEBodor, Dewar, et al., 1970RDSH

References

Go To: Top, Phase change data, 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.

Walborsky and Loncrini, 1954
Walborsky, H.M.; Loncrini, D.F., J. Am. Chem. Soc., 1954, 76, 5396. [all data]

Wong and Westrum, 1970
Wong, W.-K.; Westrum, E.F., Thermodynamics of globular molecules. XVII. Heat capacities and transition behavior of bicyclo[2.2.2]octane and bicyclo[2.2.2]octene, J. Phys. Chem., 1970, 74, 1303-8. [all data]

Boyd, Sanwal, et al., 1971
Boyd, R.H.; Sanwal, S.N.; Shary-Tehrany, S.; McNally, D., The thermochemistry, thermodynamic functions, and molecular structures of some cyclic hydrocarbons, J. Phys. Chem., 1971, 75, 1264-1271. [all data]

Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J., , Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brighton, 1977. [all data]

Wong and Westrum, 1971
Wong, S.S.; Westrum, E.F., Jr., Enthalpies of formation of globular molecules. II. Three bicyclooctanes and two bicyclononanes, J. Am. Chem. Soc., 1971, 93, 5317-5321. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]

Westrum, Wong, et al., 1970
Westrum, E.F., Jr.; Wong, W-K.; Morawetz, E., Thermodynamics of globular molecules. XVIII. Heat capacities and transitional behavior of 1-azabicyclo[2.2.2]octane and 3-oxabicyclo[3.2.2]nonane. Sublimation behavior of five globular molecules, J. Phys. Chem., 1970, 74, 2542-2547. [all data]

Wong and Westrum, 1970, 2
Wong, W-K.; Westrum, E.F., Jr., Thermodynamics of globular molecules. XVII. Heat capacities and transition behavior of bicyclo[2.2.2]octane and bicyclo[2.2.2]octene, J. Phys. Chem., 1970, 74, 1303-1308. [all data]

Turner, Meador, et al., 1957
Turner, R.B.; Meador, W.R.; Winkler, R.E., Heats of hydrogenation. I. Apparatus and the heats of hydrogenation of bicyclo[2,2,1]heptene, bicyclo[2,2,1]heptadiene, bicyclo[2,2,2]octene and bicyclo[2,2,2]octadiene, J. Am. Chem. Soc., 1957, 79, 4116-4121. [all data]

Turner, 1964
Turner, R.B., Heat of Hydrogenation of Bicyclo[2.2.2]octa-2,5,7-triene, J. Am. Chem. Soc., 1964, 86, 3586-3587. [all data]

Raymonda, 1972
Raymonda, J.W., Rydberg states in cyclic alkanes, J. Chem. Phys., 1972, 56, 3912. [all data]

Bodor, Dewar, et al., 1970
Bodor, N.; Dewar, M.J.S.; Worley, S.D., Photoelectron spectra of molecules. III. Ionization potentials of some cyclic hydrocarbons and their derivatives, and heats of formation and ionization potentials calculated by the MINDO SCF MO method, J. Am. Chem. Soc., 1970, 92, 19. [all data]


Notes

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