2-Oxepanone

• Formula: C₆H₁₀O₂
• Molecular weight: 114.1424
• IUPAC Standard InChI: InChI=1S/C6H10O2/c7-6-4-2-1-3-5-8-6/h1-5H2 Copy

  
• IUPAC Standard InChIKey: PAPBSGBWRJIAAV-UHFFFAOYSA-N Copy
• CAS Registry Number: 502-44-3
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: ε-Caprolactone; Caprolactone; Hexamethylene oxide, 2-oxo-; Hexanoic acid, 6-hydroxy-, ε-lactone; 1,6-Hexanolide; 6-Hexanolactone; 6-Hydroxyhexanoic acid lactone; 2-Oxacycloheptanone; 6-Caprolactone; Hexanoic acid, ε-lactone; ε-Kaprolakton; Placcel M; Hexanoic acid, 6-hydroxy-, lactone; ε-Caprolactone monomer; 1-Oxa-2-oxocycloheptane; 6-Caprolactone monomer; 6-Hexanalactone; 6-Hexanolide; 6-Hydroxyhexan-6-olide; Hexan-6-olide; Epsilon-caprolactone; E-caprolactone
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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
  • IR Spectrum
  • Mass spectrum (electron ionization)
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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Reduced pressure boiling point

Enthalpy of vaporization

Enthalpy of fusion

Entropy of fusion

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.

Lebedev and Yevstropov, 1983
Lebedev, B.V.; Yevstropov, A.A. (see evstro aa), Thermodynamics of β-propiolactone, γ-butyrolactone, δ- valerolactone, and ε-caprolactone from 13.8 to 340 K, J. Chem. Thermodyn., 1983, 15, 115. [all data]

Lebedev, Evstropov, et al., 1978
Lebedev, B.V.; Evstropov, A.A.; Lebedev, N.K.; Belov, V.I., The thermodynamics of ε-caprolactone, its polymer and of η-caprolactam polymerization in the 0-350 K range, Vysikomol. Soedin., Ser. A, 1978, 20, 1974-80. [all data]

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]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Lebedev and Yevstropov, 1983, 2
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]

Lebedev, Yevstropov, et al., 1978
Lebedev, B.V.; Yevstropov, A.A.; Lebedev, N.K.; Karpova, Ye.A.; Lyudvig, Ye.B.; Belen'kaya, B.G., The thermodynamics of e-caprolactone, its polymer and of e-caprolactone polymerization in the 0-350°K range, Vysokomol. Soedin., 1978, A20, 1974-1980. [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]

Notes

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• Symbols used in this document:
  

  Tboil	Boiling point
  Ttriple	Triple point temperature
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

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