Cyclobutane-1,3-dione

• Formula: C₄H₄O₂
• Molecular weight: 84.0734
• IUPAC Standard InChI: InChI=1S/C4H4O2/c5-3-1-4(6)2-3/h1-2H2 Copy

  
• IUPAC Standard InChIKey: PZQGSZRQKQZCOJ-UHFFFAOYSA-N Copy
• CAS Registry Number: 15506-53-3
• Chemical structure:
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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
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  • Gas Phase Kinetics Database
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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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

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.

Chickos and Sherwood, 1978
Chickos, J.S.; Sherwood, D.E., Jr., Mechanism of thermolysis of diketene in the gas phase, J. Org. Chem., 1978, 43, 1146-1150. [all data]

Notes

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• Symbols used in this document:
  

  ΔsubH°

  Enthalpy of sublimation at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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