Pentacyclo[5.4.0.0(2,6).0(3,10).0(5,9)]undecane-8,11-dione
- Formula: C11H10O2
- Molecular weight: 174.1959
- IUPAC Standard InChIKey: WTUFOKOJVXNYTJ-UHFFFAOYSA-N
- CAS Registry Number: 2958-72-7
- 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: Pentacyclo[5.4.0.02,6.03,10.05,9]undecan-8,11-dione; Pentacyclo[5.4.0.02,6.03,10.05,9]undecan-8,11-dione
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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 |
---|---|---|---|---|---|
ΔfH°solid | -47.39 | kcal/mol | Ccb | Cookson, Crundwell, et al., 1964 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -1328.77 | kcal/mol | Ccb | Cookson, Crundwell, et al., 1964 | Corresponding ΔfHºsolid = -47.37 kcal/mol (simple calculation by NIST; no Washburn corrections) |
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Ttriple | 516.8 | K | N/A | Weinstein, Leffler, et al., 1984 | Crystal phase 1 phase; Uncertainty assigned by TRC = 2. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 22.1 ± 0.24 | kcal/mol | ME | Jiménez, Roux, et al., 1999 | AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
1.25 | 516.8 | DSC | Jiménez, Roux, et al., 1999 | AC |
0.942 | 516.8 | DSC | Weinstein, Leffler, et al., 1984, 2 | There is a large difference in the experimental enthalpies and transition temperature reported by the two research groups for the solid/solid transition around 355 K; AC |
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 by: Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.1 | PE | Marchand, Kaya, et al., 1984 | Vertical value |
References
Go To: Top, Condensed phase thermochemistry data, Phase change 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.
Cookson, Crundwell, et al., 1964
Cookson, R.C.; Crundwell, E.; Hill, R.R.; Hudec, J.,
586. Photochemical cyclisation of Diels-Alder adducts.,
J. Chem. Soc., 1964, 3062-3075. [all data]
Weinstein, Leffler, et al., 1984
Weinstein, D.I.; Leffler, A.J.; Currie, J.A.,
Phase Transitions in Bicyclic Compounds,
Mol. Cryst. Liq. Cryst., 1984, 104, 95. [all data]
Jiménez, Roux, et al., 1999
Jiménez, P.; Roux, M.V.; Dávalos, J.Z.; Abboud, J.-L.M.; Molina, M.T.,
Structural effects on the thermochemical properties of cycloalkanones. III. Enthalpy of combustion, vapour pressures, and enthalpy of sublimation, and standard enthalpy of formation in the gaseous phase of pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione,
The Journal of Chemical Thermodynamics, 1999, 31, 2, 263-271, https://doi.org/10.1006/jcht.1998.0450
. [all data]
Weinstein, Leffler, et al., 1984, 2
Weinstein, D.I.; Leffler, A.J.; Currie, J.A.,
Phase Transitions In Bicyclic Compounds,
Molecular Crystals and Liquid Crystals, 1984, 104, 1-2, 95-109, https://doi.org/10.1080/00268948408070401
. [all data]
Marchand, Kaya, et al., 1984
Marchand, A.P.; Kaya, R.; Baker, A.D.,
A photoelectron spectroscopic study of proximity effects in 8,11-disubstituted pentacyclo(5.4.0.02,6.03,10.05,9)undecanes,
Tetrahedron Lett., 1984, 25, 795. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Ttriple Triple point temperature ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid 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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