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 Copy

  
• IUPAC Standard InChIKey: VUNCWTMEJYMOOR-UHFFFAOYSA-N Copy
• CAS Registry Number: 77-47-4
• Chemical structure:
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• 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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• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • IR Spectrum
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
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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

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

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

• gas

References

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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

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• 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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