Phenanthrene, 4,5-dimethyl-

• Formula: C₁₆H₁₄
• Molecular weight: 206.2824
• IUPAC Standard InChI: InChI=1S/C16H14/c1-11-5-3-7-13-9-10-14-8-4-6-12(2)16(14)15(11)13/h3-10H,1-2H3 Copy

  
• IUPAC Standard InChIKey: GWWHAAHVHHLOQW-UHFFFAOYSA-N Copy
• CAS Registry Number: 3674-69-9
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: 4,5-Dimethylphenanthrene; 4,5-methylphenanthrene
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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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

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 by: William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

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 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

View reactions leading to C₁₆H₁₄⁺ (ion structure unspecified)

Ionization energy determinations

Appearance energy determinations

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• SOLID (1% IN KI); Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm^-1 resolution
• SOLUTION (50 g/L IN HEPTANE); Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 $$SPECTRAL CONTAMINATION DUE TO SOLVENT AROUND 2800 AND 1450 CM^-1 cm^-1 resolution

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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Additional Data

Gas Chromatography

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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

Kovats' RI, non-polar column, isothermal

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

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

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Lee's RI, non-polar column, temperature ramp

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References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Frisch, 1962
Frisch, M.A., A high precision calorimeter for ther measurement of small energy differences, Ph.D. Thesis for University of Wisconsin, 1962, 1-100. [all data]

Frisch, Barker, et al., 1963
Frisch, M.A.; Barker, C.; Margrave, J.L.; Newman, M.S., Strain energies in hydrocarbons from heats to combustion. I. 4,5-and 2,7-dimethylphenanthrenes, 1,12- and 5,8-benzo(c)phenanthrenes and 1',9- and 3',6-benzanthracenes, J. Am. Chem. Soc., 1963, 85, 2356-2357. [all data]

Nass, Lenoir, et al., 1995
Nass, Karen; Lenoir, Dieter; Kettrup, Antonius, Calculation of the Thermodynamic Properties of Polycyclic Aromatic Hydrocarbons by an Incremental Procedure, Angew. Chem. Int. Ed. Engl., 1995, 34, 16, 1735-1736, https://doi.org/10.1002/anie.199517351 . [all data]

Dougherty, Bertorello, et al., 1971
Dougherty, R.C.; Bertorello, H.E.; Martinez de Bertorello, M., Mass spectra and thermochemistry of methyl phenanthrenes. A contribution to the analogy between mass spectral and thermal fragmentation reactions, Org. Mass Spectrom., 1971, 5, 1321. [all data]

Nounou, 1966
Nounou, P., Etude des composes aromatiques par spectrometrie de masse. I. Mesure des potentials d'ionisation et d'apparition par la methode du potential retardateur et interpretation des courbes d'ionisation differentielle, J. Chim. Phys., 1966, 63, 994. [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]

Zhang, Shen, et al., 2000
Zhang, M.-J.; Shen, S.-D.; Chen, S.-Y.; Sun, Y.-H., Analysis of heavy oil fractions in high-temperature coal tar by capillary gas chromatography/fourier transform infrared spectrometry, Chin. J. Chromatogr., 2000, 18, 3, 241-246. [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]

Garrigues, Parlanti, et al., 1987
Garrigues, P.; Parlanti, E.; Radke, M.; Bellocq, J.; Willsch, H.; Ewald, M., Identification of alkylphenanthrenes in shale oil and coal by liquid and capillary gas chromatography and high-resolution spectrofluorimetry (Shpol'skii effect), J. Chromatogr., 1987, 395, 217-228, https://doi.org/10.1016/S0021-9673(01)94112-3 . [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔsubH	Enthalpy of sublimation

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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