Phenylethyne

• Formula: C₈H₆
• Molecular weight: 102.1332
• IUPAC Standard InChI: InChI=1S/C8H6/c1-2-8-6-4-3-5-7-8/h1,3-7H Copy

  
• IUPAC Standard InChIKey: UEXCJVNBTNXOEH-UHFFFAOYSA-N Copy
• CAS Registry Number: 536-74-3
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Isotopologues:
  • Benzene, beta-deuteroethynyl-
  • Benzene, beta-deuteroethynyl-
• Other names: Benzene, ethynyl-; Ethyne, phenyl-; Ethynylbenzene; Phenylacetylene; 1-Phenylethyne; Acetylene, phenyl-; Ethinylbenzene
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• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • IR Spectrum
  • UV/Visible spectrum
  • Gas Chromatography
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Gas Phase Kinetics Database
  • NIST Polycyclic Aromatic Hydrocarbon Structure Index
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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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

Phase change data

Go To: Top, Gas phase thermochemistry 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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of vaporization

Enthalpy of fusion

Entropy of fusion

Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Phase change 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

References

Go To: Top, Gas phase thermochemistry data, Phase change 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.

Davis, Allinger, et al., 1985
Davis, H.E.; Allinger, N.L.; Rogers, D.W., Enthalpies of hydrogenation of phenylalkynes: indirect determination of the enthalpy of formation of diphenylcyclopropenone, J. Org. Chem., 1985, 50, 3601-3604. [all data]

Evans J.C., 1960
Evans J.C., The vibrational spectra ethynyl benzene and ethynyl benzene-d, Spectrochim. Acta, 1960, 16, 918-928. [all data]

Farchan Laboratories, 1990
Farchan Laboratories, Research Chemicals Catalog, Farchan Laboratories, Gainesville, FL, 1990, 91. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Smith and Andrews, 1931
Smith, R.H.; Andrews, D.H., Thermal Energy Studies I. Phenyl Derivatives of Methane, Ethane and Some Related Compounds, J. Am. Chem. Soc., 1931, 53, 3644. [all data]

Moureu and Andre, 1914
Moureu, C.; Andre, E., Thermochemistry of Acetylenic Compounds, Ann. Chim. (Paris), 1914, 1, 113. [all data]

Bruhl, 1886
Bruhl, J.W., Investigation of Molar Refraction of ORganic Liquids from Light Scattering Measurements, Justus Liebigs Ann. Chem., 1886, 235, 1. [all data]

Lebedev, Bykova, et al., 1982
Lebedev, B.V.; Bykova, T.A.; Smirnova, N.N.; Kulagina, T.G., Zh. Obshch. Khim., 1982, 52, 2630. [all data]

Steele, Chirico, et al., 2002
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A., Measurements of Vapor Pressure, Heat Capacity, and Density along the Saturation Line for γ-Caprolactam, Pyrazine, 1,2-Propanediol, Triethylene Glycol, Phenyl Acetylene, and Diphenyl Acetylene, J. Chem. Eng. Data, 2002, 47, 4, 689-699, https://doi.org/10.1021/je010085z . [all data]

Chickos, Hyman, et al., 1981
Chickos, James S.; Hyman, Arthur S.; Ladon, Liina H.; Liebman, Joel F., Measurement and estimation of the heats of vaporization of hydrocarbons, J. Org. Chem., 1981, 46, 21, 4294-4296, https://doi.org/10.1021/jo00334a040 . [all data]

Lebedev, Bykova, et al., 1982, 2
Lebedev, B.V.; Bykova, T.A.; Smirnova, N.N.; Kulagina, T.G., Thermodynmics of phenylacetylene, its cyclotrimerization, and the resulting 1,3,5-triphenylbenzene at 0-480 K, Zhur. Obshch. Khim., 1982, 52, 2630-2636. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  Cp,gas	Constant pressure heat capacity of gas
  Tboil	Boiling point
  Tfus	Fusion (melting) point
  Ttriple	Triple point temperature
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔvapH	Enthalpy of vaporization

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