Phenanthrene, 2,4,5,7-tetramethyl-

• Formula: C₁₈H₁₈
• Molecular weight: 234.3355
• IUPAC Standard InChI: InChI=1S/C18H18/c1-11-7-13(3)17-15(9-11)5-6-16-10-12(2)8-14(4)18(16)17/h5-10H,1-4H3 Copy

  
• IUPAC Standard InChIKey: BZXXZUAJRXKPOF-UHFFFAOYSA-N Copy
• CAS Registry Number: 7396-38-5
• 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: 2,4,5,7-Tetramethylphenanthrene
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• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • UV/Visible spectrum
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
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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

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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

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

Ionization energy determinations

Appearance energy determinations

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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Additional Data

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, UV/Visible spectrum, Notes

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

Karnes, Kybett, et al., 1965
Karnes, H.A.; Kybett, B.D.; Wilson, M.H.; Margrave, J.L.; Newman, M.S., Strain energies in hydrocarbons from heats of combustion. III. 3,4,5,6- and 2,4,5,7-tetramethylphenanthrenes, J. Am. Chem. Soc., 1965, 87, 5554-5558. [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]

Blackburn, 1967
Blackburn, E.V., UV atlas of organic compounds, 1967, 3, E3/21. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, UV/Visible spectrum, References

• Symbols used in this document:
  

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

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