Dibenz[a,h]anthracene
- Formula: C22H14
- Molecular weight: 278.3466
- IUPAC Standard InChIKey: LHRCREOYAASXPZ-UHFFFAOYSA-N
- CAS Registry Number: 53-70-3
- 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. - Isotopologues:
- Other names: Dibenzo[a,h]anthracene; DBA; 1,2:5,6-Benzanthracene; 1,2:5,6-Dibenzanthracene; 1,2:5,6-Dibenzoanthracene; 1,2,5,6-Dibenzanthracene; DB(a,h)A; Dibenz(a,h)antracene; 1,2,5,6-Dibenzanthraceen; 1,2:5,6-Dibenz(a)anthracene; 1,2,5,6-DBA; Rcra waste number U063; NSC 22433
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Phase change data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 797.2 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 544.2 | K | N/A | Casellato, Vecchi, et al., 1973 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tfus | 535. | K | N/A | Wakayama and Inokuchi, 1967 | Uncertainty assigned by TRC = 5. K; probably taken from previous literature; TRC |
Tfus | 537.65 | K | N/A | Schuyer, Blom, et al., 1953 | Uncertainty assigned by TRC = 1. K; TRC |
Tfus | 543. | K | N/A | Jones and Neuworth, 1944 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 533.15 | K | N/A | Krishnan and Banerjee, 1935 | Metastable crystal phase; Uncertainty assigned by TRC = 2. K; orthorhombic modification; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 31.33 ± 0.33 | kcal/mol | CGC | Hanshaw, Nutt, et al., 2008 | AC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 35.6 ± 1.0 | 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 |
ΔsubH° | 39. ± 1. | kcal/mol | V | Kruif, 1980 | ALS |
ΔsubH° | 39. ± 1. | kcal/mol | TE,ME | Kruif, 1980 | Based on data from 436. to 462. K.; AC |
ΔsubH° | 33.9 | kcal/mol | V | Wakayama and Inokuchi, 1967, 2 | ALS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
23.8 | 398. | GC | Lei, Chankalal, et al., 2002 | Based on data from 323. to 473. K.; AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
33.89 | 457. | ME | Wakayama and Inokuchi, 1967, 3 | Based on data from 417. to 502. K.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
6.79 | 539.7 | DSC | Kestens, Auclair, et al., 2010 | AC |
7.447 | 544.2 | N/A | Acree, 1991 | AC |
Gas phase ion energetics data
Go To: Top, Phase change data, Mass spectrum (electron ionization), References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 7.39 ± 0.01 | eV | N/A | N/A | L |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.5950 ± 0.0080 | ECD | Becker and Chen, 1966 | B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.38 ± 0.02 | PE | Schmidt, 1977 | LLK |
7.6 ± 0.1 | EI | Gallegos, 1968 | RDSH |
7.57 | CTS | Kuroda, 1964 | RDSH |
7.58 | CTS | Briegleb, 1964 | RDSH |
7.80 | CTS | Birks and Stifkin, 1961 | RDSH |
7.42 | CTS | Matsen, 1956 | RDSH |
7.38 | PE | Clar and Schmidt, 1976 | Vertical value; LLK |
7.41 | PE | Clar and Schmidt, 1975 | Vertical value; LLK |
7.38 ± 0.04 | PE | Boschi, Clar, et al., 1974 | Vertical value; LLK |
Mass spectrum (electron ionization)
Go To: Top, Phase change data, Gas phase ion energetics 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW- 121 |
NIST MS number | 229816 |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Casellato, Vecchi, et al., 1973
Casellato, F.; Vecchi, C.; Girell, A.,
Differential calorimetric study of polycyclic aromatic hydrocarbons,
Thermochim. Acta, 1973, 6, 4, 361, https://doi.org/10.1016/0040-6031(73)87003-0
. [all data]
Wakayama and Inokuchi, 1967
Wakayama, N.; Inokuchi, H.,
Heats of Sublimation of Polycyclic Aromatic Hydrocarbons and Their Molecular Packings,
Bull. Chem. Soc. Jpn., 1967, 40, 2267-71. [all data]
Schuyer, Blom, et al., 1953
Schuyer, J.; Blom, L.; Van Krevelen, D.W.,
Molar refraction of condensed aromatic compounds.,
Trans. Faraday Soc., 1953, 49, 1391. [all data]
Jones and Neuworth, 1944
Jones, R.C.; Neuworth, M.B.,
The Ultraviolet Absorption Spectra of Hydrocarbon-Trinitrobenzene Complexes,
J. Am. Chem. Soc., 1944, 66, 1497. [all data]
Krishnan and Banerjee, 1935
Krishnan, K.S.; Banerjee, S.,
An Orthorhombic Crystalline Modification of 1,2,5,6-Dibenzanthracene,
Z. Kristallogr., Kristallgeom., Kristallphys., Kristallchem., 1935, 91, 170. [all data]
Hanshaw, Nutt, et al., 2008
Hanshaw, William; Nutt, Marjorie; Chickos, James S.,
Hypothetical Thermodynamic Properties. Subcooled Vaporization Enthalpies and Vapor Pressures of Polyaromatic Hydrocarbons,
J. Chem. Eng. Data, 2008, 53, 8, 1903-1913, https://doi.org/10.1021/je800300x
. [all data]
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]
Kruif, 1980
Kruif, C.G.,
Enthalpies of sublimation and vapour pressures of 11 polycyclic hydrocarbons,
J. Chem. Thermodyn., 1980, 12, 243-248. [all data]
Wakayama and Inokuchi, 1967, 2
Wakayama, N.; Inokuchi, H.,
Heats of sublimation of polycyclic aromatic hydrocarbons and their molecular packings,
Bull. Chem. Soc. Jpn., 1967, 40, 2267. [all data]
Lei, Chankalal, et al., 2002
Lei, Ying Duan; Chankalal, Raymond; Chan, Anita; Wania, Frank,
Supercooled Liquid Vapor Pressures of the Polycyclic Aromatic Hydrocarbons,
J. Chem. Eng. Data, 2002, 47, 4, 801-806, https://doi.org/10.1021/je0155148
. [all data]
Wakayama and Inokuchi, 1967, 3
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]
Kestens, Auclair, et al., 2010
Kestens, Vikram; Auclair, Guy; Drozdzewska, Katarzyna; Held, Andrea; Roebben, Gert; Linsinger, Thomas,
Thermodynamic property values of selected polycyclic aromatic hydrocarbons measured by differential scanning calorimetry,
J Therm Anal Calorim, 2010, 99, 1, 245-261, https://doi.org/10.1007/s10973-009-0440-6
. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
Becker and Chen, 1966
Becker, R.S.; Chen, E.,
Extension of Electron Affinities and Ionization Potentials of Aromatic Hydrocarbons,
J. Chem. Phys., 1966, 45, 7, 2403, https://doi.org/10.1063/1.1727954
. [all data]
Schmidt, 1977
Schmidt, W.,
Photoelectron spectra of polynuclear aromatics. V. Correlations with ultraviolet absorption spectra in the catacondensed series,
J. Chem. Phys., 1977, 66, 828. [all data]
Gallegos, 1968
Gallegos, E.J.,
Mass spectrometry and ionization energies of some condensed-ring aromatic and heterocyclic compounds,
J. Phys. Chem., 1968, 72, 3452. [all data]
Kuroda, 1964
Kuroda, H.,
Ionization potentials of polycyclic aromatic hydrocarbons,
Nature, 1964, 201, 1214. [all data]
Briegleb, 1964
Briegleb, G.,
Electron affinity of organic molecules,
Angew. Chem. Intern. Ed., 1964, 3, 617. [all data]
Birks and Stifkin, 1961
Birks, J.B.; Stifkin, M.A.,
π-Electronic excitation and ionization energies of condensed ring aromatic hydrocarbons,
Nature, 1961, 191, 761. [all data]
Matsen, 1956
Matsen, F.A.,
Electron affinities, methyl affinities, and ionization energies of condensed ring aromatic hydrocarbons,
J. Chem. Phys., 1956, 24, 602. [all data]
Clar and Schmidt, 1976
Clar, E.; Schmidt, W.,
Correlations between photoelectron and phosphorescence spectra of polycyclic hydrocarbons,
Tetrahedron, 1976, 32, 2563. [all data]
Clar and Schmidt, 1975
Clar, E.; Schmidt, W.,
Correlations btween photoelectron and ultraviolet absorption spectra of polycyclic hydrocarbons and the number of aromatic sextets,
Tetrahedron, 1975, 31, 2263. [all data]
Boschi, Clar, et al., 1974
Boschi, R.; Clar, E.; Schmidt, W.,
Photoelectron spectra of polynuclear aromatics. III. The effect of nonplanarity in sterically overcrowded aromatic hydrocarbons,
J. Chem. Phys., 1974, 60, 4406. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
EA Electron affinity IE (evaluated) Recommended ionization energy Tboil Boiling point Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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