Tetraphenylmethane

• Formula: C₂₅H₂₀
• Molecular weight: 320.4263
• IUPAC Standard InChI: InChI=1S/C25H20/c1-5-13-21(14-6-1)25(22-15-7-2-8-16-22,23-17-9-3-10-18-23)24-19-11-4-12-20-24/h1-20H Copy

  
• IUPAC Standard InChIKey: PEQHIRFAKIASBK-UHFFFAOYSA-N Copy
• CAS Registry Number: 630-76-2
• 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: Benzene, 1,1',1'',1'''-methanetetrayltetrakis-; Methane, tetraphenyl-
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• Information on this page:
  • Gas phase thermochemistry data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
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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 as indicated in comments:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

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:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard

Ionization energy determinations

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• SOLID (SPLIT MULL), FLUOROLUBE FOR 3800-1330 CM^-1, NUJOL FOR 1330-250 CM^-1 $$ SPECTRAL FEATURE AT 448 CM^-1 IS AN ARTIFACT CAUSED BY GRATING CHANGE; PERKIN-ELMER 521 (GRATING); DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY; 2 cm^-1 resolution

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

• gas; HP-GC/MS/IRD

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

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, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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Additional Data

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Notes

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

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]

Kana'an, 1972
Kana'an, A.S., Sublimation pressures of tetraphenylmethane and associated bond energies, J. Chem. Thermodyn., 1972, 4, 893. [all data]

Marcus Y., 1986
Marcus Y., Entropies of tetrahedral M-phenyl species, J. Chem. Soc., Faraday Trans. 1, 1986, 82, 993-1006. [all data]

Dorofeeva O.V., 1997
Dorofeeva O.V., Unpublished results. Thermocenter of Russian Academy of Science, Moscow, 1997. [all data]

Novak and Potts, 1984
Novak, I.; Potts, A.W., The UV gas-phase photoelectron spectra of Group IVB tetraphenyl derivatives, J. Organomet. Chem., 1984, 262, 17. [all data]

Notes

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• Symbols used in this document:
  

  S°gas	Entropy of gas at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions

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