Oxirane, 2,3-dimethyl-, trans-

• Formula: C₄H₈O
• Molecular weight: 72.1057
• IUPAC Standard InChI: InChI=1S/C4H8O/c1-3-4(2)5-3/h3-4H,1-2H3/t3-,4-/m0/s1 Copy

  
• IUPAC Standard InChIKey: PQXKWPLDPFFDJP-IMJSIDKUSA-N Copy
• CAS Registry Number: 21490-63-1
• 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.
• Species with the same structure:
  • Butane, 2,3-epoxy, trans-
• Stereoisomers:
  • 2,3-Dimethyloxirane
  • Oxirane, 2,3-dimethyl-, cis-
  • 2,3-Epoxybutane
  • D(+)-trans-2,3-epoxybutane
• Other names: Butane, 2,3-epoxy-, trans-; trans-2-Butene Oxide; trans-2-Butylene Oxide; trans-2,3-Dimethyloxirane; trans-2,3-Epoxybutane; 2,3-Butylene oxide (trans); 2,3-Dimethyloxirane, trans; 2,3-Dimethyl-oxirane (E)
• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • 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: Glushko Thermocenter, Russian Academy of Sciences, Moscow

Constant pressure heat capacity of gas

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

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

View reactions leading to C₄H₈O⁺ (ion structure unspecified)

Ionization energy determinations

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

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes

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

Durig J.R., 1982
Durig J.R., Vibrational spectra and torsional analysis of cis-2,3-dimethyloxirane and trans-2,3-dimethyloxirane, J. Mol. Struct., 1982, 95, 59-84. [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]

Farchan Laboratories, 1990
Farchan Laboratories, Research Chemicals Catalog, Farchan Laboratories, Gainesville, FL, 1990, 91. [all data]

Cottle and Powell, 1936
Cottle, D.L.; Powell, L.S., The Reaction of 2,3-Epoxybutane with Grignard Reagent, J. Am. Chem. Soc., 1936, 58, 2267. [all data]

Timmermans, 1952
Timmermans, J., Freezing points of organic compounds. VVI New determinations., Bull. Soc. Chim. Belg., 1952, 61, 393. [all data]

Wilson and Lucas, 1936
Wilson, C.E.; Lucas, H.J., Stereochemical Relationships of the Isomeric 2,3-Butanediols and Related Compounds; Evidence of Walden Inversion, J. Am. Chem. Soc., 1936, 58, 2396. [all data]

McAlduff and Houk, 1977
McAlduff, E.J.; Houk, K.N., Photoelectron spectra of substituted oxiranes and thiiranes. Substituent effects on ionization potentials involving σ orbitals, Can. J. Chem., 1977, 55, 318. [all data]

Notes

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• Symbols used in this document:
  

  Cp,gas	Constant pressure heat capacity of gas
  Tboil	Boiling point
  Tfus	Fusion (melting) point

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