Xanthone
- Formula: C13H8O2
- Molecular weight: 196.2014
- IUPAC Standard InChI: InChI=1S/C13H8O2/c14-13-9-5-1-3-7-11(9)15-12-8-4-2-6-10(12)13/h1-8H
- IUPAC Standard InChIKey: JNELGWHKGNBSMD-UHFFFAOYSA-N
- CAS Registry Number: 90-47-1
- 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-Xanthen-9-one; Xanthen-9-one; Benzophenone oxide; Dibenzo-γ-pyrone; Diphenylene ketone oxide; E 6; Genicide; Xanthene, 9-oxo-; 9-Oxoxanthene; 9H-Xanthene, 9-oxo-; 9-Xanthenone; Xanthenone; 9-Xanthone; NSC 14978; dibenzopyranone
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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
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 24.55 ± 0.55 | kcal/mol | C | Freitas, Gomes, et al., 2009 | AC |
| ΔsubH° | 23.56 ± 0.086 | kcal/mol | C | Sabbah and El Watik, 1988 | Hfusion=26.12±0.24 kJ/mol; ALS |
| ΔsubH° | 23.6 | kcal/mol | N/A | Sabbah and El Watik, 1988 | DRB |
| ΔsubH° | 23.56 ± 0.1 | kcal/mol | C | Sabbah and Watik, 1988 | AC |
| ΔsubH° | 26.8 ± 1.5 | kcal/mol | E | Kim, Winans, et al., 1978 | ALS |
Reduced pressure boiling point
| Tboil (K) | Pressure (atm) | Reference | Comment |
|---|---|---|---|
| 622.7 | 0.961 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 23.559 | 298.15 | Sabbah and El Watik, 1988 | DH |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 6.2428 | 449.63 | Sabbah and El Watik, 1988 | DH |
| 6.243 | 449.7 | Domalski and Hearing, 1996 | 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.
Freitas, Gomes, et al., 2009
Freitas, Vera L.S.; Gomes, José R.B.; Ribeiro da Silva, Maria D.M.C.,
Energetic studies of two oxygen heterocyclic compounds Xanthone and tetrahydro-«947»-pyrone,
J Therm Anal Calorim, 2009, 97, 3, 827-833, https://doi.org/10.1007/s10973-009-0233-y
. [all data]
Sabbah and El Watik, 1988
Sabbah, R.; El Watik, L.,
Thermodynamic study of two simple molecules encountered as products of the pyrolysis of coal: chromone and xanthone,
Bull. Soc. Chim. France, 1988, 626-630. [all data]
Sabbah and Watik, 1988
Sabbah, R.; Watik, L.E.,
Thermodynamic study of two simple molecules encountered as products of the pyrolysis of coal: chromone and xanthone,
Bull. Soc. Chim. Fr., 1988, 4, 626. [all data]
Kim, Winans, et al., 1978
Kim, K.Y.; Winans, R.E.; Hubbard, W.N.; Johnson, C.E.,
Thermochemistry of coal components. 1. Xanthone,
J. Phys. Chem., 1978, 82, 402-405. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [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]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔfusH Enthalpy of fusion ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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