Bicyclo[2.2.2]octane
- Formula: C8H14
- Molecular weight: 110.1968
- IUPAC Standard InChIKey: GPRLTFBKWDERLU-UHFFFAOYSA-N
- CAS Registry Number: 280-33-1
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Cyclohexane, 1,4-endo-(1,2-ethanediyl)-; 1,4-Endoethylenecyclohexane
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), References, Notes
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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -99.04 ± 0.96 | kJ/mol | Ccr | Wong and Westrum, 1971 | see also Boyd, Sanwal, et al., 1971, See Westrum and Wong, 1967; ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°gas | 324.7 ± 2.5 | J/mol*K | N/A | Boyd R.H., 1971 | GT |
Constant pressure heat capacity of gas
Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
81.92 | 200. | Boyd R.H., 1971 | Selected values were obtained by force field calculation. One can expect the uncertainty in S(500 K) and Cp(T) values to be about 10 J/mol*K if compare with the authors' results for bicyclo[2.2.1]heptane.; GT |
129.62 | 298.15 | ||
130.58 | 300. | ||
183.05 | 400. | ||
231.25 | 500. |
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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | -147.1 ± 0.84 | kJ/mol | Ccr | Wong and Westrum, 1971 | see also Boyd, Sanwal, et al., 1971, See Westrum and Wong, 1967; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -5001.93 ± 0.88 | kJ/mol | Ccr | Wong and Westrum, 1971 | see also Boyd, Sanwal, et al., 1971, See Westrum and Wong, 1967; Corresponding ΔfHºsolid = -146.9 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°solid,1 bar | 209.95 | J/mol*K | N/A | Wong and Westrum, 1970 | crystaline, I phase; DH |
Constant pressure heat capacity of solid
Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
157.69 | 298.15 | Wong and Westrum, 1970 | crystaline, I phase; T = 5 to 470 K.; DH |
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 |
---|---|---|---|---|---|
Tfus | 443. | K | N/A | Walborsky and Loncrini, 1954 | Uncertainty assigned by TRC = 5. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 447.48 | K | N/A | Wong and Westrum, 1970, 2 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.01 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 47.7 ± 0.8 | kJ/mol | N/A | Boyd, Sanwal, et al., 1971 | See also Pedley and Rylance, 1977.; AC |
ΔsubH° | 48.1 | kJ/mol | N/A | Wong and Westrum, 1971 | DRB |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
46.3 ± 0.8 | 323. to 363. | BG | Boyd, Sanwal, et al., 1971 | See also Pedley and Rylance, 1977 and Stephenson and Malanowski, 1987.; AC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
8.37 | 447.5 | Acree, 1991 | See also Westrum, Wong, et al., 1970.; AC |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
4.586 | 164.25 | crystaline, II | crystaline, I | Wong and Westrum, 1970 | DH |
8.347 | 447.48 | crystaline, I | liquid | Wong and Westrum, 1970 | DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
27.87 | 164.25 | crystaline, 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 self | crystaline, I, consistent | Wong and Westrum, 1970 | DH |
18.74 | 447.48 | crystaline, 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 self | liquid, consistent | Wong and Westrum, 1970 | DH |
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
By formula: 2H2 + C8H10 = C8H14
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -235.2 ± 0.42 | kJ/mol | Chyd | Turner, Meador, et al., 1957 | liquid phase; solvent: Acetic acid |
By formula: H2 + C8H12 = C8H14
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -118.2 ± 0.84 | kJ/mol | Chyd | Turner, Meador, et al., 1957 | liquid phase; solvent: Acetic acid |
By formula: 3H2 + C8H8 = C8H14
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -392.4 ± 1.3 | kJ/mol | Chyd | Turner, 1964 | liquid phase; solvent: Acetic acid |
IR Spectrum
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Data compiled by: Coblentz Society, Inc.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | NIST Mass Spectrometry Data Center, 1990. |
NIST MS number | 114215 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
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]
Westrum and Wong, 1967
Westrum, E.F., Jr.; Wong, S.,
Strain energies and thermal properties of globular and polynuclear aromatic molecules,
AEC Rept. Coo-1149-92, Contract AT(11-1)-1149, 1967, 1-7. [all data]
Boyd R.H., 1971
Boyd R.H.,
The thermochemistry, thermodynamic functions, and molecular structures of some cyclic hydrocarbons,
J. Phys. Chem., 1971, 75, 1264-1271. [all data]
Wong and Westrum, 1970
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]
Walborsky and Loncrini, 1954
Walborsky, H.M.; Loncrini, D.F.,
J. Am. Chem. Soc., 1954, 76, 5396. [all data]
Wong and Westrum, 1970, 2
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]
Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J.,
, Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brighton, 1977. [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]
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]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas Cp,solid Constant pressure heat capacity of solid S°gas Entropy of gas at standard conditions S°solid,1 bar Entropy of solid at standard conditions (1 bar) Tfus Fusion (melting) point Ttriple Triple point temperature ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔfusH Enthalpy of fusion ΔrH° Enthalpy of reaction at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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