Benz[a]anthracene
- Formula: C18H12
- Molecular weight: 228.2879
- IUPAC Standard InChI: InChI=1S/C18H12/c1-2-7-15-12-18-16(11-14(15)6-1)10-9-13-5-3-4-8-17(13)18/h1-12H
- IUPAC Standard InChIKey: DXBHBZVCASKNBY-UHFFFAOYSA-N
- CAS Registry Number: 56-55-3
- 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: Benzanthracene; Benzanthrene; Benzoanthracene; Benzo[a]anthracene; Benzo[b]phenanthrene; Tetraphene; 1,2-Benzanthracene; 1,2-Benzanthrene; 1,2-Benzoanthracene; 1,2-Benz[a]anthracene; 2,3-Benzophenanthrene; BA; 1,2-Benzanthrazen; 2,3-Benzphenanthrene; Rcra waste number U018; NSC 30970
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Gas phase thermochemistry 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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 69.4 ± 1.4 | kcal/mol | Review | Roux, Temprado, et al., 2008 | There are insufficient literature values to properly evaluate the data and insufficient information to construct thermochemical cycles or estimate values for comparison, and one must rely solely upon reported uncertainities and the quality of the measurements. In general, the evaluated uncertainty limits are on the order of (3 to 9) kJ/mol.; DRB |
Constant pressure heat capacity of gas
| Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 11.73 | 50. | Dorofeeva O.V., 1988 | Recommended values were calculated statistically mechanically using force field approximation for polycyclic aromatic hydrocarbons to estimate the needed vibrational frequencies (see also [ Dorofeeva O.V., 1986, Moiseeva N.F., 1989]). These functions are reproduced in the reference book [ Frenkel M., 1994].; GT |
| 18.41 | 100. | ||
| 26.561 | 150. | ||
| 35.961 | 200. | ||
| 50.865 | 273.15 | ||
| 55.99 ± 0.36 | 298.15 | ||
| 56.370 | 300. | ||
| 75.571 | 400. | ||
| 91.585 | 500. | ||
| 104.38 | 600. | ||
| 114.60 | 700. | ||
| 122.87 | 800. | ||
| 129.65 | 900. | ||
| 135.29 | 1000. | ||
| 140.02 | 1100. | ||
| 144.01 | 1200. | ||
| 147.41 | 1300. | ||
| 150.31 | 1400. | ||
| 152.81 | 1500. |
Condensed phase thermochemistry data
Go To: Top, Gas 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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
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 | 40.82 ± 0.79 | kcal/mol | Review | Roux, Temprado, et al., 2008 | There are insufficient literature values to properly evaluate the data and insufficient information to construct thermochemical cycles or estimate values for comparison, and one must rely solely upon reported uncertainities and the quality of the measurements. In general, the evaluated uncertainty limits are on the order of (3 to 9) kJ/mol.; DRB |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -2143.64 ± 0.56 | kcal/mol | Ccb | Magnus, Hartmann, et al., 1951 | Reanalyzed by Cox and Pilcher, 1970, Original value = -2143.74 ± 0.56 kcal/mol; Corresponding ΔfHºsolid = 40.83 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of solid
| Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 65.39 | 298.15 | Ueberreiter and Orthmann, 1950 | T = 293 to 368 K. Equation only.; DH |
References
Go To: Top, Gas phase thermochemistry data, 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.
Roux, Temprado, et al., 2008
Roux, M.V.; Temprado, M.; Chickos, J.S.; Nagano, Y.,
Critically Evaluated Thermochemical Properties of Polycyclic Aromatic Hydrocarbons,
J. Phys. Chem. Ref. Data, 2008, 37, 4, 1855-1996. [all data]
Dorofeeva O.V., 1988
Dorofeeva O.V.,
Thermodynamic Properties of Polycyclic Aromatic Hydrocarbons in the Gaseous Phase. Institute for High Temperatures, USSR Academy of Sciences, Preprint No.1-238 (in Russian), Moscow, 1988. [all data]
Dorofeeva O.V., 1986
Dorofeeva O.V.,
On calculation of thermodynamic properties of polycyclic aromatic hydrocarbons,
Thermochim. Acta, 1986, 102, 59-66. [all data]
Moiseeva N.F., 1989
Moiseeva N.F.,
Development of Benson group additivity method for estimation of ideal gas thermodynamic properties of polycyclic aromatic hydrocarbons,
Thermochim. Acta, 1989, 153, 77-85. [all data]
Frenkel M., 1994
Frenkel M.,
Thermodynamics of Organic Compounds in the Gas State, Vol. I, II, Thermodynamics Research Center, College Station, Texas, 1994, 1994. [all data]
Magnus, Hartmann, et al., 1951
Magnus, A.; Hartmann, H.; Becker, F.,
Verbrennungswarmen und resonanzenergien von mehrkernigen aromatischen kohlenwasserstoffen,
Z. Phys. Chem., 1951, 197, 75-91. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Ueberreiter and Orthmann, 1950
Ueberreiter, K.; Orthmann, H.-J.,
Specifische Wärme, spezifisches Volumen, Temperatur- und Wärme-leittähigkeit einiger disubstituierter Benzole und polycyclischer Systeme,
Z. Natursforsch. 5a, 1950, 101-108. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas Cp,solid Constant pressure heat capacity of solid ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas 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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