Hexachlorocyclopentadiene
- Formula: C5Cl6
- Molecular weight: 272.772
- 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
View 3d structure (requires JavaScript / HTML 5) - 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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Gas 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°gas | -2.8 ± 1.0 | kcal/mol | Ccb | Lyubarskii and Smolyanets, 1977 |
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: C9H2Cl6O3 = C4H2O3 + C5Cl6
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 75.2 | kcal/mol | Ion | Vijayakumar and Fink, 1983 | solid phase |
IR Spectrum
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Data compiled by: Coblentz Society, Inc.
- LIQUID (NEAT); PERKIN-ELMER 283; DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm-1 resolution
- SOLUTION (10% CCl4 FOR 5000-1330, 10% CS2 FOR 1330-625 CM-1); Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm-1 resolution
- SOLUTION (10% IN CCl4 FOR 3800-1330 AND 10% IN CS2 FOR 1330-450 CM-1); DOW KBr FOREPRISM-GRATING; DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm-1 resolution
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, IR Spectrum, 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]
Vijayakumar and Fink, 1983
Vijayakumar, C.T.; Fink, J.K.,
Heat of formation of the Diels-Alder adduct of hexachlorocyclopentadiene and maleic anhydride by appearance-energy measurements,
Org. Mass Spectrom., 1983, 18, 134. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, IR Spectrum, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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