Hexachlorocyclopentadiene
- Formula: C5Cl6
- Molecular weight: 272.772
- IUPAC Standard InChI: InChI=1S/C5Cl6/c6-1-2(7)4(9)5(10,11)3(1)8
- IUPAC Standard InChIKey: VUNCWTMEJYMOOR-UHFFFAOYSA-N
- CAS Registry Number: 77-47-4
- 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: 1,3-Cyclopentadiene, 1,2,3,4,5,5-hexachloro-; C 56; Cyclopentadiene, hexachloro-; Graphlox; Hexachloro-1,3-cyclopentadiene; HRS 1655; Perchlorocyclopentadiene; 1,2,3,4,5,5-Hexachloro-1,3-cyclopentadiene; 1,3-Cyclopentadiene, hexachloro-; Hexachlorcyklopentadien; NCI-C55607; Perchloro-1,3-cyclopentadiene; HCCPD; Rcra waste number U130; UN 2646; 1,2,3,4,5,5-Hexachloro-cyclopenta-1,3-diene; NSC 9235
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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:
BS - Robert L. Brown and Stephen E. Stein
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔvapH° | 16.1 ± 0.3 | kcal/mol | V | Lyubarskii and Smolyanets, 1977 | ALS |
Reduced pressure boiling point
| Tboil (K) | Pressure (atm) | Reference | Comment |
|---|---|---|---|
| 512.2 | 0.991 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 12.8 | 350. | A | Stephenson and Malanowski, 1987 | Based on data from 335. to 512. K.; AC |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 17.6 | 283. | B | Bondi, 1963 | See also Ungnade and McBee, 1958.; AC |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lyubarskii and Smolyanets, 1977
Lyubarskii, M.V.; Smolyanets, R.I.,
Enthalpies of combustion and formation of five-membered cyclic perchlorohydrocarbons,
Vses. Konf. Kalorim. Rasshir. Tezisy Dokl. 7th, 1977, 1, 119-121. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [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]
Bondi, 1963
Bondi, A.,
Heat of Siblimation of Molecular Crystals: A Catalog of Molecular Structure Increments.,
J. Chem. Eng. Data, 1963, 8, 3, 371-381, https://doi.org/10.1021/je60018a027
. [all data]
Ungnade and McBee, 1958
Ungnade, H.E.; McBee, E.T.,
The Chemistry Of Perchlorocyclopentenes And Cyclopentadienes,
Chem. Rev., 1958, 58, 2, 249-320, https://doi.org/10.1021/cr50020a003
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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