Picene
- Formula: C22H14
- Molecular weight: 278.3466
- IUPAC Standard InChI: InChI=1S/C22H14/c1-3-7-17-15(5-1)9-11-21-19(17)13-14-20-18-8-4-2-6-16(18)10-12-22(20)21/h1-14H
- IUPAC Standard InChIKey: GBROPGWFBFCKAG-UHFFFAOYSA-N
- CAS Registry Number: 213-46-7
- 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: 1,2:7,8-Dibenzophenanthrene; β,β-Binaphthyleneethene; Benzo(a)chrysene; Dibenzo(a,i)phenanthrene; Pycene; 1,2,7,8-Dibenzphenanthrene; 3,4-Benzchrysene; 1,2:7,8-Dibenzphenanthrene; NSC 406006
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Gas phase thermochemistry data
Go To: Top, Phase change 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: Glushko Thermocenter, Russian Academy of Sciences, Moscow
Constant pressure heat capacity of gas
| Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 13.73 | 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]. |
| 22.32 | 100. | ||
| 32.402 | 150. | ||
| 43.872 | 200. | ||
| 61.898 | 273.15 | ||
| 68.08 ± 0.84 | 298.15 | ||
| 68.530 | 300. | ||
| 91.635 | 400. | ||
| 110.91 | 500. | ||
| 126.32 | 600. | ||
| 138.62 | 700. | ||
| 148.56 | 800. | ||
| 156.71 | 900. | ||
| 163.47 | 1000. | ||
| 169.13 | 1100. | ||
| 173.91 | 1200. | ||
| 177.96 | 1300. | ||
| 181.43 | 1400. | ||
| 184.41 | 1500. |
Phase change 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:
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 | 639. ± 3. | K | AVG | N/A | Average of 7 values; Individual data points |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 33.63 | 424. | N/A | Stephenson and Malanowski, 1987 | Based on data from 409. to 527. K.; AC |
| 33.48 | 456. | ME | Wakayama and Inokuchi, 1967 | Based on data from 425. to 488. K.; AC |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 8.411 | 637.2 | Smith, 1980 | AC |
References
Go To: Top, Gas 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.
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]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Wakayama and Inokuchi, 1967
Wakayama, Nobuko; Inokuchi, Hiroo,
Heats of Sublimation of Polycyclic Aromatic Hydrocarbons and Their Molecular Packings,
Bull. Chem. Soc. Jpn., 1967, 40, 10, 2267-2271, https://doi.org/10.1246/bcsj.40.2267
. [all data]
Smith, 1980
Smith, George W.,
Phase Behavior of some Condensed Polycyclic Aromatics,
Molecular Crystals and Liquid Crystals, 1980, 64, 1, 15-17, https://doi.org/10.1080/01406568008072649
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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