Dibenz[a,h]anthracene

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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
Tboil797.2KN/AAldrich Chemical Company Inc., 1990BS
Quantity Value Units Method Reference Comment
Tfus544.2KN/ACasellato, Vecchi, et al., 1973Uncertainty assigned by TRC = 0.4 K; TRC
Tfus535.KN/AWakayama and Inokuchi, 1967Uncertainty assigned by TRC = 5. K; probably taken from previous literature; TRC
Tfus537.65KN/ASchuyer, Blom, et al., 1953Uncertainty assigned by TRC = 1. K; TRC
Tfus543.KN/AJones and Neuworth, 1944Uncertainty assigned by TRC = 2. K; TRC
Tfus533.15KN/AKrishnan and Banerjee, 1935Metastable crystal phase; Uncertainty assigned by TRC = 2. K; orthorhombic modification; TRC
Quantity Value Units Method Reference Comment
Δvap31.33 ± 0.33kcal/molCGCHanshaw, Nutt, et al., 2008AC
Quantity Value Units Method Reference Comment
Δsub35.6 ± 1.0kcal/molReviewRoux, Temprado, et al., 2008There 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
Δsub39. ± 1.kcal/molVKruif, 1980ALS
Δsub39. ± 1.kcal/molTE,MEKruif, 1980Based on data from 436. to 462. K.; AC
Δsub33.9kcal/molVWakayama and Inokuchi, 1967, 2ALS

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
23.8398.GCLei, Chankalal, et al., 2002Based on data from 323. to 473. K.; AC

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Method Reference Comment
33.89457.MEWakayama and Inokuchi, 1967, 3Based on data from 417. to 502. K.; AC

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Method Reference Comment
6.79539.7DSCKestens, Auclair, et al., 2010AC
7.447544.2N/AAcree, 1991AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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 ± 0.01eVN/AN/AL

Electron affinity determinations

EA (eV) Method Reference Comment
0.5950 ± 0.0080ECDBecker and Chen, 1966B

Ionization energy determinations

IE (eV) Method Reference Comment
7.38 ± 0.02PESchmidt, 1977LLK
7.6 ± 0.1EIGallegos, 1968RDSH
7.57CTSKuroda, 1964RDSH
7.58CTSBriegleb, 1964RDSH
7.80CTSBirks and Stifkin, 1961RDSH
7.42CTSMatsen, 1956RDSH
7.38PEClar and Schmidt, 1976Vertical value; LLK
7.41PEClar and Schmidt, 1975Vertical value; LLK
7.38 ± 0.04PEBoschi, Clar, et al., 1974Vertical 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

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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