Thioxanthene
- Formula: C13H10S
- Molecular weight: 198.283
- 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° | 18.6 ± 0.62 | kcal/mol | ME | Freitas, Monte, et al., 2009 | Based on data from 383. to 447. K.; AC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 24.31 ± 0.38 | kcal/mol | C | Freitas, Monte, et al., 2009 | AC |
ΔsubH° | 24.12 ± 0.05 | kcal/mol | ME | Freitas, Monte, et al., 2009 | Based on data from 339. to 402. K.; AC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
16.6 ± 0.05 | 415. | ME | Freitas, Monte, et al., 2009 | Based on data from 383. to 447. K.; AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
23.5 ± 0.05 | 370. | ME | Freitas, Monte, et al., 2009 | Based on data from 339. to 402. K.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
6.24 | 401.8 | Acree, 1991 | AC |
IR Spectrum
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Sadtler Research Labs Under US-EPA Contract |
State | gas |
UV/Visible spectrum
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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: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina
Spectrum
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Additional Data
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Source | missing citation |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 9016 |
Instrument | Beckman DK 2 |
Melting point | 128.5 |
Boiling point | 341 |
References
Go To: Top, Phase change data, IR Spectrum, UV/Visible spectrum, 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, IR Spectrum, UV/Visible spectrum, 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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