Bicyclo[2.2.2]oct-2-ene
- Formula: C8H12
- Molecular weight: 108.1809
- IUPAC Standard InChIKey: VIQRCOQXIHFJND-UHFFFAOYSA-N
- CAS Registry Number: 931-64-6
- 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: Bicyclo[2.2.2]octene; Cyclohexene, 3,6-endo-(1,2-ethanediyl)-; 3,6-Endoethylenecyclohexene; 2,2,2-Bicyclooctene-2; Bicyclo[2.2.2]-2-octene; Bicyclo[2,2,2]-2-octene
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Gas phase thermochemistry data
Go To: Top, Phase change data, 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 | 26. | kJ/mol | Kin | Huybrechts, Rigaux, et al., 1980 | Diels-Alder addition at 560°K, see Van Mele, Boon, et al., 1986; ALS |
ΔfH°gas | 20.4 ± 0.79 | kJ/mol | Ccr | Wong and Westrum, 1971 | See Westrum and Wong, 1967; ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°gas | 316.3 | J/mol*K | N/A | Cocks A.T., 1971 | This value was calculated from experimental values of entropy for solid bicyclo[2.2.2]oct-2-ene and enthalpy of vaporization. Value of 323.0 J/mol*K was obtained from the study of kinetics of the addition of ethylene to 1,3-cyclohexadiene [ Huybrechts G., 1980]. Estimations by means of the group additivity are equal to 331.0 [ Huybrechts G., 1980] and 330.1 J/mol*K [ Van Mele B., 1986].; GT |
Phase change data
Go To: Top, Gas phase thermochemistry data, 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 401. to 407. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 384. to 385. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 389.75 | K | N/A | Wong and Westrum, 1970 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.01 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 43.4 | kJ/mol | N/A | Wong and Westrum, 1971 | DRB |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
5.4 | 389.8 | Wong and Westrum, 1970, 2 | AC |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
0.188 | 110.50 | crystaline, III | crystaline, II | Wong and Westrum, 1970, 2 | Second order transition.; DH |
5.648 | 176.47 | crystaline, II | crystaline, I | Wong and Westrum, 1970, 2 | DH |
5.381 | 389.75 | crystaline, I | liquid | Wong and Westrum, 1970, 2 | DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
1.33 | 110.50 | crystaline, III | crystaline, II | Wong and Westrum, 1970, 2 | Second; DH |
24.52 | 176.47 | 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, 2 | DH |
14.39 | 389.75 | 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, 2 | DH |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Phase change data, 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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Due to licensing restrictions, this spectrum cannot be downloaded.
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 | Japan AIST/NIMC Database- Spectrum MS-IW-3669 |
NIST MS number | 238210 |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, 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.
Huybrechts, Rigaux, et al., 1980
Huybrechts, G.; Rigaux, D.; Vankeerberghen, J.; Van Mele, B.,
Kinetics of the Diels-Alder addition of ethene to cyclohexa-1,3-diene and its reverse reaction in the gas phase,
Int. J. Chem. Kinet., 1980, 12, 253-259. [all data]
Van Mele, Boon, et al., 1986
Van Mele, B.; Boon, G.; Huybrechts, G.,
Gas-phase kinetic and thermochemical data for endo- and exo-5-monosubstituted bicyclo[2.2.2]oct-2-enes,
Int. J. Chem. Kinet., 1986, 18, 537-545. [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]
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]
Cocks A.T., 1971
Cocks A.T.,
Thermal unimolecular decomposition of bicyclo[2.2.2]oct-2-ene,
J. Chem. Soc. A, 1971, 1661-1663. [all data]
Huybrechts G., 1980
Huybrechts G.,
Kinetics of the Diels-Alder addition of ethene to cyclohexa-1,3-diene and its reverse reaction in the gas phase,
Int. J. Chem. Kinet., 1980, 12, 253-259. [all data]
Van Mele B., 1986
Van Mele B.,
Gas-phase kinetic and thermodynamic data for endo- and exo-5-mono-substituted bicyclo[2.2.2]oct-2-enes,
Int. J. Chem. Kinet., 1986, 18, 537-545. [all data]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [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]
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]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References
- Symbols used in this document:
S°gas Entropy of gas at standard conditions Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfusH Enthalpy of fusion ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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