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
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • 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

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

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

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes

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]

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), 2755-2761. [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, 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, https://doi.org/10.1246/bcsj.53.2755 . [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
  Cp,liquid	Constant pressure heat capacity of liquid
  S°liquid	Entropy of liquid at standard conditions
  Tboil	Boiling point
  Ttriple	Triple point temperature
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid 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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