Thioxanthene
- Formula: C13H10S
- Molecular weight: 198.283
- IUPAC Standard InChI: InChI=1S/C13H10S/c1-3-7-12-10(5-1)9-11-6-2-4-8-13(11)14-12/h1-8H,9H2
- IUPAC Standard InChIKey: PQJUJGAVDBINPI-UHFFFAOYSA-N
- CAS Registry Number: 261-31-4
- 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: 9H-Thioxanthene; Dibenzothiapyran; Thiaxanthen; Thiaxanthene; Thioxanthen; 10H-dibenzo[b,e]thiin
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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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 401.7 | K | N/A | Coon, Sediawan, et al., 1988 | Uncertainty assigned by TRC = 0.1 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 77.8 ± 2.6 | kJ/mol | ME | Freitas, Monte, et al., 2009 | Based on data from 383. - 447. K.; AC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔsubH° | 101.7 ± 1.6 | kJ/mol | C | Freitas, Monte, et al., 2009 | AC |
| ΔsubH° | 100.9 ± 0.2 | kJ/mol | ME | Freitas, Monte, et al., 2009 | Based on data from 339. - 402. K.; AC |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 69.5 ± 0.2 | 415. | ME | Freitas, Monte, et al., 2009 | Based on data from 383. - 447. K.; AC |
Enthalpy of sublimation
| ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 98.4 ± 0.2 | 370. | ME | Freitas, Monte, et al., 2009 | Based on data from 339. - 402. K.; AC |
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 26.1 | 401.8 | Acree, 1991 | AC |
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.
Coon, Sediawan, et al., 1988
Coon, J.E.; Sediawan, W.B.; Auwaerter, J.E.; McLaughlin, E.,
Solubilities of families of heterocyclic polynuclear aromatics in organic solvents and their mixtures,
J. Solution Chem., 1988, 17, 519. [all data]
Freitas, Monte, et al., 2009
Freitas, Vera L.S.; Monte, Manuel J.S.; Santos, Luis M.N.B.F.; Gomes, Jose R.B.; Ribeiro da Silva, Maria D.M.C.,
Energetic Studies and Phase Diagram of Thioxanthene,
J. Phys. Chem. A, 2009, 113, 46, 12988-12994, https://doi.org/10.1021/jp906413y
. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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