Chrysene, 5,6-dimethyl-
- Formula: C20H16
- Molecular weight: 256.3410
- IUPAC Standard InChIKey: SDOJHDGZFOGOFD-UHFFFAOYSA-N
- CAS Registry Number: 3697-27-6
- Chemical structure:
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Gas 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°gas | 62.7 | kcal/mol | Ccb | Geiseler, Quitzsch, et al., 1966 |
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 |
---|---|---|---|---|---|
ΔcH°solid | -2459.2 | kcal/mol | Ccb | Geiseler, Quitzsch, et al., 1966 | Corresponding ΔfHºsolid = 31.7 kcal/mol (simple calculation by NIST; no Washburn corrections) |
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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 402.4 | K | N/A | Newman, 1940 | Uncertainty assigned by TRC = 2.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 31.06 | kcal/mol | V | Geiseler, Quitzsch, et al., 1966 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
29.09 | 387. | A | Stephenson and Malanowski, 1987 | Based on data from 380. to 394. K.; AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
32.3 ± 0.57 | 394. | ME | Kelley and Rice, 1964 | Based on data from 379. to 408. K.; AC |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, NIST Subscription Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Geiseler, Quitzsch, et al., 1966
Geiseler, V.G.; Quitzsch, K.; Rauh, H.J.; Schaffernicht, H.; Walther, H.J.,
Bildungsenthalpien und Mesomerieenergien von π-Bindungssystemen 1. Mitteilung: Bildungsenthalpien und Mesomerieenergien einiger mehrkerniger Aromaten und verschiedener Pseudoazulene,
Ber. Bunsen-Ges. Phys. Chem., 1966, 70, 551-556. [all data]
Newman, 1940
Newman, M.S.,
The Synthesis of 5-Methylchyrsene and Related Compounds,
J. Am. Chem. Soc., 1940, 62, 870. [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]
Kelley and Rice, 1964
Kelley, J. Daniel; Rice, Francis Owen,
The Vapor Pressures of Some Polynuclear Aromatic Hydrocarbons 1,
J. Phys. Chem., 1964, 68, 12, 3794-3796, https://doi.org/10.1021/j100794a043
. [all data]
Notes
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- Symbols used in this document:
Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔsubH Enthalpy of sublimation 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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