Ethanedione, diphenyl-
- Formula: C14H10O2
- Molecular weight: 210.2280
- IUPAC Standard InChI: InChI=1S/C14H10O2/c15-13(11-7-3-1-4-8-11)14(16)12-9-5-2-6-10-12/h1-10H
- IUPAC Standard InChIKey: WURBFLDFSFBTLW-UHFFFAOYSA-N
- CAS Registry Number: 134-81-6
- 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: Benzil; Bibenzoyl; Dibenzoyl; Diphenyl-α,β-diketone; Diphenylethanedione; Diphenylglyoxal; 1,2-Diphenylethane-1,2-dione; 1,2-Diphenylethanedione; Glyoxal, diphenyl-; Wy 20910; 1,2-Ethanedione, 1,2-diphenyl-; NSC 220315
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Condensed phase thermochemistry data
Go To: Top, References, Notes
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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -36.80 | kcal/mol | Ccb | Parks and Mosher, 1962 | ALS |
| ΔfH°solid | -42.7 | kcal/mol | Ccb | Springall and White, 1954 | ALS |
| ΔfH°solid | 33.1 | kcal/mol | Ccb | Landrieu, 1906 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -1621.5 ± 0.7 | kcal/mol | Ccb | Parks and Mosher, 1962 | Corresponding ΔfHºsolid = -36.78 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
| ΔcH°solid | -1615.6 ± 0.8 | kcal/mol | Ccb | Springall and White, 1954 | Corresponding ΔfHºsolid = -42.7 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
| ΔcH°solid | -1621.6 | kcal/mol | Ccb | Barker, 1925 | Author was aware that data differs from previously reported values; Corresponding ΔfHºsolid = -36.7 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
| ΔcH°solid | -1632.1 | kcal/mol | Ccb | Landrieu, 1906 | Corresponding ΔfHºsolid = -26.2 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 69.809 | cal/mol*K | N/A | Dworkin A., 1983 | DH |
Constant pressure heat capacity of solid
| Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 58.72 | 298.15 | Dworkin A., 1983 | T = 15 to 300 K.; DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Parks and Mosher, 1962
Parks, G.S.; Mosher, H.P.,
Heats of combustion and formation of seven organic compounds containing oxygen,
J. Chem. Phys., 1962, 37, 919-920. [all data]
Springall and White, 1954
Springall, H.D.; White, T.R.,
Heats of combustion and molecular structure. Part II. The mean bond energy term for the carbonyl system in certain ketones,
J. Chem. Soc., 1954, 2765-27. [all data]
Landrieu, 1906
Landrieu, M.Ph.,
Thermochimie des hydrazones et des osazones, des dicetones-α et des sucres reducteurs,
Compt. Rend., 1906, 140, 580-582. [all data]
Barker, 1925
Barker, M.F.,
Calorific value and constitution,
J. Phys. Chem., 1925, 29, 1345-1363. [all data]
Dworkin A., 1983
Dworkin A.,
Heat capacity, phase transition, and thermodynamic properties of benzil,
J. Chem. Thermodyn., 1983, 15, 1029-1035. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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