Tetrathiafulvalene
- Formula: C6H4S4
- Molecular weight: 204.356
- IUPAC Standard InChIKey: FHCPAXDKURNIOZ-UHFFFAOYSA-N
- CAS Registry Number: 31366-25-3
- 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: 1,3-Dithiole, 2-(1,3-dithiol-2-ylidene)-; Δ2,2'-Bi-1,3-dithiole; 1,4,5,8-Tetrathiafulvalene; δ-2:2'-bis(1,3-dithiazole)
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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | 69.51 ± 0.41 | kcal/mol | Ccr | Metzger, 1977 | Heat of formation H2SO4.60H2O=-598.98kJ/mol |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -1343.09 ± 0.39 | kcal/mol | Ccr | Metzger, 1977 | Heat of formation H2SO4.60H2O=-598.98kJ/mol |
Phase change data
Go To: Top, Condensed phase thermochemistry data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
22.8 | 343. | Dykyj, Svoboda, et al., 1999 | Based on data from 331. to 355. K. |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
22.8 ± 0.2 | 345. | TE,ME | de Kruif and Govers, 1980 | |
22. ± 1.5 | 351. | HSA | Sandman, Epstein, et al., 1979 | Based on data from 341. to 361. K. |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Metzger, 1977
Metzger, R.M.,
The enthalpy of formation and the experimental crystal binding energy of tetrathiofulvalenium 7,7,8,8-tetracyanoquinodimethanide (TTF TCNQ),
J. Chem. Phys., 1977, 66, 2525-2533. [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]
de Kruif and Govers, 1980
de Kruif, C.G.; Govers, H.A.J.,
Enthalpies of sublimation and vapor pressures of 2,2´-bis-1,3-dithiole (TTF), 7,7,8,8-tetracyanoquinodimethane (TCNQ), and TTF--TCNQ (1:1),
J. Chem. Phys., 1980, 73, 1, 553, https://doi.org/10.1063/1.439854
. [all data]
Sandman, Epstein, et al., 1979
Sandman, D.J.; Epstein, A.J.; Chickos, J.S.; Ketchum, J.; Fu, J.S.; Scheraga, H.A.,
Crystal lattice and polarization energy of tetrathiafulvalene,
J. Chem. Phys., 1979, 70, 1, 305, https://doi.org/10.1063/1.437191
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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