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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: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
57.4350.Dorofeeva O.V., 1988Recommended 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].
93.39100.
135.57150.
183.56200.
258.98273.15
284.8 ± 3.5298.15
286.73300.
383.40400.
464.03500.
528.51600.
579.98700.
621.57800.
655.66900.
683.941000.
707.631100.
727.621200.
744.601300.
759.121400.
771.591500.

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, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tfus639. ± 3.KAVGN/AAverage of 7 values; Individual data points

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
140.7424.N/AStephenson and Malanowski, 1987Based on data from 409. - 527. K.; AC
140.1456.MEWakayama and Inokuchi, 1967Based on data from 425. - 488. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
35.19637.2Smith, 1980AC

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

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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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
MM - Michael M. Meot-Ner (Mautner)
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)7.51 ± 0.02eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)851.3kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity820.6kJ/molN/AHunter and Lias, 1998HL

Electron affinity determinations

EA (eV) Method Reference Comment
0.5420 ± 0.0080ECDBecker and Chen, 1966B

Proton affinity at 298K

Proton affinity (kJ/mol) Reference Comment
843.5Aue, Guidoni, et al., 2000Experimental literature data re-evaluated by the authors using ab initio protonation entropies; MM

Gas basicity at 298K

Gas basicity (review) (kJ/mol) Reference Comment
818.0Aue, Guidoni, et al., 2000Experimental literature data re-evaluated by the authors using ab initio protonation entropies; MM

Ionization energy determinations

IE (eV) Method Reference Comment
7.48 ± 0.05EQMautner(Meot-Ner), 1980LLK
7.50PEClar and Schmidt, 1979LLK
7.54 ± 0.04PEBoschi, Clar, et al., 1974LLK
7.8 ± 0.1EIGallegos, 1968RDSH
7.75CTSBriegleb, 1964RDSH
7.80CTSBirks and Stifkin, 1961RDSH
7.62CTSMatsen, 1956RDSH
7.52 ± 0.02PESchmidt, 1977Vertical value; LLK
7.52PEClar and Schmidt, 1976Vertical value; LLK

IR Spectrum

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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: Coblentz Society, Inc.

Condensed Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner COBLENTZ SOCIETY
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin DOW CHEMICAL COMPANY
Source reference COBLENTZ NO. 10604
Date 1962/11/14
State SOLID (SPLIT MULL, FLUOROLUBE FOR 3800-1330 AND NUJOL FOR 1330-400 CM -1)
Instrument DOW KBr FOREPRISM-GRATING
Instrument parameters BLAZED AT 3.5, 12.0, 20.0 MICRON, CHANGED AT 5.0, 7.5, 14.9 MICRON
Resolution 4
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS)
Melting point 364 C

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass 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-IW-6946
NIST MS number 240891

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


UV/Visible spectrum

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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: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Clar and Steward, 1952
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 10112
Instrument n.i.g.
Melting point 368
Boiling point 519

Gas Chromatography

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, NIST Free Links, 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

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
PackedOV-101270.3159.Grimmer and Böhnke, 1976N2, Gas Chrom Q (100-120 mesh); Column length: 10. m
PackedOV-101270.3159.Grimmer and Böhnke, 1975Gas Chrom Q; Column length: 10. m

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillarySE-523140.Beernaert, 1979He, 50. C @ 5. min, 6. K/min; Column length: 33.3 m; Column diameter: 0.50 mm; Tend: 320. C
CapillarySE-523150.Carugno and Rossi, 1967N2, 1.8 K/min; Column length: 65. m; Column diameter: 0.3 mm; Tstart: 100. C; Tend: 300. C

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryHP-53177.Miao and Wu, 199930. m/0.32 mm/0.25 «mu»m, 50. C @ 2. min, 5. K/min; Tend: 310. C
CapillaryHP-53179.Miao and Wu, 199930. m/0.32 mm/0.25 «mu»m, 50. C @ 2. min, 5. K/min; Tend: 310. C
CapillaryHP-53213.Miao and Wu, 199930. m/0.32 mm/0.25 «mu»m, 50. C @ 2. min, 5. K/min; Tend: 310. C
CapillaryHP-53214.Miao and Wu, 199930. m/0.32 mm/0.25 «mu»m, 50. C @ 2. min, 5. K/min; Tend: 310. C
CapillaryHP-53227.Miao and Wu, 199930. m/0.32 mm/0.25 «mu»m, 50. C @ 2. min, 5. K/min; Tend: 310. C
CapillaryHP-53227.Miao and Wu, 199930. m/0.32 mm/0.25 «mu»m, 50. C @ 2. min, 5. K/min; Tend: 310. C

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
PackedOV-1013159.Kaliszan and Lamparczyk, 1978Program: not specified

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, NIST Free Links, 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]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [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]

Aue, Guidoni, et al., 2000
Aue, D.H.; Guidoni, M.; Betowski, L.D., Ab initio calculated gas-phase basicities of polynuclear aromatic hydrocarbons, Int. J. Mass Spectrom., 2000, 201, 283. [all data]

Mautner(Meot-Ner), 1980
Mautner(Meot-Ner), M., Ion thermochemistry of low volatility compounds in the gas phase. 3. Polycyclic aromatics: Ionization energies, proton, and hydrogen affinities. Extrapolations to graphite, J. Phys. Chem., 1980, 84, 2716. [all data]

Clar and Schmidt, 1979
Clar, E.; Schmidt, W., Correlations between photoelectron and UV absorption spectra of polycyclic hydrocarbons. The pyrene series, Tetrahedron, 1979, 35, 1027. [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]

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]

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., «pi»-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]

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]

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 Steward, 1952
Clar, E.; Steward, D.G., J. Am. Chem.Soc., 1952, 74, 6235. [all data]

Grimmer and Böhnke, 1976
Grimmer, G.; Böhnke, H., Anreicherung und gas-chromatographische Profil-Analyse der polycyclischen aromatischen Kohlenwasserstoffe in Schmieröl, Chromatographia, 1976, 9, 1, 30-40, https://doi.org/10.1007/BF02270595 . [all data]

Grimmer and Böhnke, 1975
Grimmer, G.; Böhnke, H., Polycyclic aromatic hydrocarbon profile analysis of high-protein foods, oils, and fats by gas chromatography, J. Ass. Offic. Anal. Chem, 1975, 58, 4, 725-733. [all data]

Beernaert, 1979
Beernaert, H., Gas Chromatographic Analysis of Polyclylic Aromatic Hydrocarbons, J. Chromatogr., 1979, 173, 1, 109-118, https://doi.org/10.1016/S0021-9673(01)80450-7 . [all data]

Carugno and Rossi, 1967
Carugno, N.; Rossi, S., Evaluation of polynuclear hydrocarbons in cigarette smoke by glass capillary columns, J. Gas Chromatogr., 1967, 5, 2, 103-106, https://doi.org/10.1093/chromsci/5.2.103 . [all data]

Miao and Wu, 1999
Miao, X.; Wu, F., Study on retention behaviors of polycyclic aromatic hydrocarbons by gas chromatography in different operation models, J. Instrumental Anal., 1999, 15, 4, 288-292. [all data]

Kaliszan and Lamparczyk, 1978
Kaliszan, R.; Lamparczyk, H., A Relationship between the Connectivity Indices and Retention Indices of Polycyclic Aromatic Hydrocarbons, J. Chromatogr. Sci., 1978, 16, 6, 246-248, https://doi.org/10.1093/chromsci/16.6.246 . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, NIST Free Links, References