7-Oxabicyclo[4.1.0]heptane

• Formula: C₆H₁₀O
• Molecular weight: 98.1430
• IUPAC Standard InChI: InChI=1S/C6H10O/c1-2-4-6-5(3-1)7-6/h5-6H,1-4H2 Copy

  
• IUPAC Standard InChIKey: ZWAJLVLEBYIOTI-UHFFFAOYSA-N Copy
• CAS Registry Number: 286-20-4
• 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: Cyclohexane, 1,2-epoxy-; Cyclohexene epoxide; Cyclohexene oxide; Cyclohexene 1-oxide; Cyclohexylene oxide; Tetramethyleneoxirane; 1,2-Cyclohexene oxide; 1,2-Epoxycyclohexane; Bicyclo[4.1.0]heptane, 7-oxa-; CCHO; NSC 128074
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• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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 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:
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
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of fusion

Entropy of fusion

Enthalpy of phase transition

Entropy of phase transition

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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

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

View reactions leading to C₆H₁₀O⁺ (ion structure unspecified)

Ionization energy determinations

Appearance 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.

Kozina, Timofeeva, et al., 1988
Kozina, M.P.; Timofeeva, L.P.; Luk'Yanova, V.A.; Pimenova, S.M.; Kas'yan, L.I., Enthalpies of formation and some alicyclic epoxy compounds, Russ. J. Phys. Chem. (Engl. Transl.), 1988, 62, 609-612. [all data]

Timofeeva, Lukyanova, et al., 1984
Timofeeva, L.P.; Lukyanova, V.A.; Kozina, M.P.; Stepanova, N.V., Enthalpies of combustion and formation of some epoxides of cyclic alkenes, Probl. Kalorim. Khim. Termodin., Dokl. Vses. Konf., 10th, 1984, 1, 193-195. [all data]

Andruzzi, Li, et al., 1987
Andruzzi, F.; Li, S.; Pilcher, G.; Heatley, F., Enthalpy of polymerisation of 7-oxabicyclo[4.1.0]heptane, Makromol. Chem., 1987, 188, 2643-2650. [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]

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]

Frinton Laboratories Inc., 1986
Frinton Laboratories Inc., Catalog Number 11, Frinton Laboratories Inc., Vineland, NJ, 1986, 99. [all data]

Nakamura, Suga, et al., 1980
Nakamura, N.; Suga, H.; Seki, S., Calorimetric study on orientationally disordered crystals. Cyclohexene oxide and cyclohexanone., Bull. Chem. Soc. Japan, 1980, 53, 10, 2755, https://doi.org/10.1246/bcsj.53.2755 . [all data]

Nakamura, Suga, et al., 1980, 2
Nakamura, N.; Suga, H.; Seki, S., Calorimetric study on orientationally disordered crystals. Cyclohexene oxide and cyclohexanone, Bull. Chem. Soc. Japan, 1980, 53(10), 2755-2761. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Alai and Rye, 1984
Alai, M.; Rye, R.T.B., Fragmentation of selected C₆H₁₀O isomers: Evidence for a common [C₅H₇O]⁺ ion generated by methyl loss from cyclohexene oxide and 5,6-dihydro-4-methyl-2H-pyran, Org. Mass Spectrom., 1984, 19, 506. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  Tboil	Boiling point
  Ttriple	Triple point temperature
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔvapH°	Enthalpy of vaporization at standard conditions

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