2H-Pyran-2-one, tetrahydro-

• Formula: C₅H₈O₂
• Molecular weight: 100.1158
• IUPAC Standard InChI: InChI=1S/C5H8O2/c6-5-3-1-2-4-7-5/h1-4H2 Copy

  
• IUPAC Standard InChIKey: OZJPLYNZGCXSJM-UHFFFAOYSA-N Copy
• CAS Registry Number: 542-28-9
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: δ-Valerolactone; δ-Valeryllactone; Pentanoic acid, 5-hydroxy-, δ-lactone; Tetrahydro-2-pyranone; 5-Valerolactone; Valeric acid, δ-hydroxy-, δ-lactone; 5-Hydroxypentanoic acid δ-lactone; 1-Oxacyclohexan-2-one; Tetrahydro-2H-pyran-2-one; Delta-valerolactone; δ-Pentalactone; 5-Pentanolide; Cyclopentanolide; Tetrahydropyran-2-one; NSC 6247; Pentan-5-olide; γ-Valerolactone
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• Information on this page:
  • Condensed phase thermochemistry data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Phase change 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

IR 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: Coblentz Society, Inc.

Condensed Phase Spectrum

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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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

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

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

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

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Normal alkane RI, non-polar column, temperature ramp

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

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Normal alkane RI, polar column, custom temperature program

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References

Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes

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

Wiberg and Waldron, 1991
Wiberg, K.B.; Waldron, R.F., Lactones. 2. Enthalpies of hydrolysis, reduction, and formation of the C₄-C₁₃ monocyclic lactones. strain energies and conformations, J. Am. Chem. Soc., 1991, 113, 7697-7705. [all data]

Leitao, Pilcher, et al., 1990
Leitao, M.L.P.; Pilcher, H.; Meng-Yan, Y.; Brown, J.M.; Conn, A.D., Enthalpies of combustion of γ-butyrolactone, γ-valerolactone, and δ-valerolactone, J. Chem. Thermodyn., 1990, 22, 885-891. [all data]

Brown, Conn, et al., 1989
Brown, J.M.; Conn, A.D.; Pilcher, G.; Leitao, M.L.P.; Yang, M.-Y., On the strain energy of 5-ring and 6-ring lactones, J. Chem. Soc., Chem. Commun., 1989, 1817-1819. [all data]

Lebedev and Yevstropov, 1983
Lebedev, B.V.; Yevstropov, A.A., Thermodynamics of β-propiolactone, t-butyrolactone, d-valerolactone, and e-caprolactone from 13.8 to 340 K, J. Chem. Thermodynam., 1983, 15, 115-128. [all data]

Yevstropov, Lebedev, et al., 1982
Yevstropov, A.A.; Lebedev, B.V.; Kulagina, T.G.; Lebedev, N.K., Calorimetric study of d-valerolactone, poly-d-valerolactone and of the process of polymerization of d-valerolactone in the 13.8 to 340 K temperature range, Vysokomol. Soedin., Ser. A, 1982, 24, 568-574. [all data]

Evstopov, Lebedev, et al., 1981
Evstopov, A.A.; Lebedev, B.V.; Kulagina, T.G.; Lebedev, N.K., Thermodynamics of the polymerization process of d-valerolactone and poly-d-valerolactone in the range 0 to 350 K, Termodin. Org. Soedin., 1981, 20-31. [all data]

Osorio, Alarcon, et al., 2006
Osorio, C.; Alarcon, M.; Moreno, C.; Bonilla, A.; Barrios, J.; Garzon, C.; Duque, C., Characterization of Odor-Active Volatiles in Champa ( Campomanesia lineatifolia R. P.), J. Agric. Food Chem., 2006, 54, 2, 509-516, https://doi.org/10.1021/jf052098c . [all data]

Andrade, Sampaio, et al., 2007
Andrade, M.S.; Sampaio, T.S.; Nogueira, P.C.L.; Ribeiro, A.S.; Bittrich, V.; Amaral, M.C.E., Volatile compounds of the leaves, flowers and fruits of Kielmeyera rugosa Choisy (Clusiaceae), Flavour Fragr. J., 2007, 22, 1, 49-52, https://doi.org/10.1002/ffj.1751 . [all data]

Fröhlich, Duque, et al., 1989
Fröhlich, O.; Duque, C.; Schreier, P., Volatile constituents of curuba (Passiflora mollissima) fruit, J. Agric. Food Chem., 1989, 37, 2, 421-425, https://doi.org/10.1021/jf00086a033 . [all data]

Leffingwell and Alford, 2011
Leffingwell, J.; Alford, E.D., Volatile constituents of the giant pufball mushroom (Calvatia gigantea), Leffingwell Rep., 2011, 4, 1-17. [all data]

Ciccioli, Cecinato, et al., 1994
Ciccioli, P.; Cecinato, A.; Brancaleoni, E.; Brachetti, A.; Frattoni, M.; Sparapani, R., Composition and Distribution of Polar and Non-Polar VOCs in Urban, Rural, Forest and Remote Areas, Eur Commission EUR, 1994, 549-568. [all data]

Ciccioli, Brancaleoni, et al., 1993
Ciccioli, P.; Brancaleoni, E.; Cecinato, A.; Sparapani, R.; Frattoni, M., Identification and determination of biogenic and anthropogenic volatile organic compounds in forest areas of Northern and Southern Europe and a remote site of the Himalaya region by high-resolution gas chromatography-mass spectrometry, J. Chromatogr., 1993, 643, 1-2, 55-69, https://doi.org/10.1016/0021-9673(93)80541-F . [all data]

Chinnici, Guerrero, et al., 2009
Chinnici, F.; Guerrero, E.D.; Sonni, F.; Natali, N.; Marin, R.N.; Riponi, C., Gas chromatography - mass spectrometry (GC-MS) characterization of volatile compounds in quality vinegars with protected Europian geographical indication, J. Agric. Food Chem., 2009, 57, 11, 4784-4792, https://doi.org/10.1021/jf804005w . [all data]

Vinogradov, 2004
Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]

Notes

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• Symbols used in this document:
  

  Cp,liquid	Constant pressure heat capacity of liquid
  S°liquid	Entropy of liquid at standard conditions
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions

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