4H-Thiopyran-4-one, tetrahydro-

• Formula: C₅H₈OS
• Molecular weight: 116.181
• IUPAC Standard InChI: InChI=1S/C5H8OS/c6-5-1-3-7-4-2-5/h1-4H2 Copy

  
• IUPAC Standard InChIKey: OVRJVKCZJCNSOW-UHFFFAOYSA-N Copy
• CAS Registry Number: 1072-72-6
• 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: 1-Thiacyclohexan-4-one; 4-Thiacyclohexanone; Penthianone; Tetrahydro-1-thio-γ-pyrone; Tetrahydro-1-thio-4-pyrone; Tetrahydro-1,4-thiapyrone; Tetrahydro-4-thiopyrone; Tetrahydro-4H-thiopyran-4-one; Tetrahydrothiopyran-4-one; 2,3,5,6-Tetrahydro-4-thiopyranone; 4-Oxotetrahydrothiopyran; 4-Oxothiane; Tetrahydrothia-4-pyranone; Tetrahydro-4H-thiapyran-4-one; 4H-tetrahydrothiopyran-4-one; 4-Thianone; NSC 41599
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - 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

Ionization energy determinations

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.

Geiseler and Sawistowsky, 1972
Geiseler, V.G.; Sawistowsky, J., Bildungsenthalpien und Mesomerieenergien von π-Bindungssystemen. 4. Mitteilung: Bildungsenthalpien einiger Thiacyclannone, Z. Phys. Chem. (Leipzig), 1972, 250, 43-48. [all data]

Geiseler and Sawistowsky, 1972, 2
Geiseler, G.; Sawistowsky, J., Z. Phys. Chem. (Leipzig), 1972, 250, 1-2, 43. [all data]

Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J., , Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brighton, 1977. [all data]

Colonna, Distefano, et al., 1980
Colonna, F.P.; Distefano, G.; Guerra, M.; Jones, D., Photoelectron (He(I), He(II) and X-ray) spectroscopy of γ-pyrone and its related sulphur derivatives: valence and core ionization energies shake-up satellites, J. Electron Spectrosc. Relat. Phenom., 1980, 18, 309. [all data]

Notes

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• Symbols used in this document:
  

  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions
  ΔvapH°	Enthalpy of vaporization at standard conditions

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