1,4-Benzenedicarbonyl dichloride

• Formula: C₈H₄Cl₂O₂
• Molecular weight: 203.022
• IUPAC Standard InChI: InChI=1S/C8H4Cl2O2/c9-7(11)5-1-2-6(4-3-5)8(10)12/h1-4H Copy

  
• IUPAC Standard InChIKey: LXEJRKJRKIFVNY-UHFFFAOYSA-N Copy
• CAS Registry Number: 100-20-9
• 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: p-Phenylenedicarbonyl dichloride; p-Phthaloyl chloride; p-Phthaloyl dichloride; Terephthalic acid chloride; Terephthalic acid dichloride; Terephthalic dichloride; Terephthaloyl chloride; Terephthaloyl dichloride; p-Phthalyl dichloride; Terephthalyl dichloride; 1,4-Benzenedicarbonyl chloride; NSC 41885
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • References
  • Notes
• Other data available:
  • IR Spectrum
  • Mass spectrum (electron ionization)
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

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
AC - William E. Acree, Jr., James S. Chickos
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of vaporization

Enthalpy of fusion

Entropy of fusion

Enthalpy of phase transition

Entropy of phase transition

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.

Karyakin, Rabinovich, et al., 1978
Karyakin, N.V.; Rabinovich, I.B.; Sokolov, L.B., Thermodynamics of the synthesis of isomeric poly(phenylenephthalamides), Vysokomol. Soedin. Ser. B, 1978, 20, 662-666. [all data]

Sapozhnikov, Mochalov, et al., 1973
Sapozhnikov, V.N.; Mochalov, A.N.; Karyakin, N.V.; Kunyavskaya, S.G.; Chernova, V.I.; Rabinovich, I.B., Low-temperature heat capacity and thermodynamic properties of some acid dichlorides, Tr. Khim. Khim. Tekhnol., 1973, 55-57. [all data]

Sapozhnikov and Mochalov, 1973
Sapozhnikov, V.N.; Mochalov, A.N., Karyakin, N.V. Kunyavskaya, S.G., Chernova, V.I., and Rabinovich, I.B., Low-temperature heat capacity and thermodynamic properties of some acid dichlorides, 1973, Tr. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 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]

Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R., Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Karyakin and Shvetsova, 1982
Karyakin, N.V.; Shvetsova, K.G., Thermodynamics of reactions of 1,4-butanediol with terephthalic acid and its derivatives, Deposited Doc. SPSTL 861 Khp-D82, 1982, 14pp. [all data]

Notes

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• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  S°solid,1 bar	Entropy of solid at standard conditions (1 bar)
  Tboil	Boiling point
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔvapH	Enthalpy of vaporization

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