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
- IUPAC Standard InChIKey: LXEJRKJRKIFVNY-UHFFFAOYSA-N
- 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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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 539.2 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 13.4 | 463. | A | Stephenson and Malanowski, 1987 | Based on data from 454. to 473. K. See also Dykyj, Svoboda, et al., 1999.; AC |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 5.04 | 356.1 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
| ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 1.65 | 337.3 | Domalski and Hearing, 1996 | CAL |
| 14.16 | 356.1 |
Enthalpy of phase transition
| ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.5581 | 337.3 | crystaline, II | crystaline, I | Karyakin and Shvetsova, 1982 | DH |
| 5.0430 | 356.1 | crystaline, I | liquid | Karyakin and Shvetsova, 1982 | DH |
Entropy of phase transition
| ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 1.65 | 337.3 | crystaline, II | crystaline, I | Karyakin and Shvetsova, 1982 | DH |
| 14.2 | 356.1 | crystaline, I | liquid | Karyakin and Shvetsova, 1982 | DH |
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.
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
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition 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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