2-Butenal, (E)-

• Formula: C₄H₆O
• Molecular weight: 70.0898
• IUPAC Standard InChI: InChI=1S/C4H6O/c1-2-3-4-5/h2-4H,1H3/b3-2+ Copy

  
• IUPAC Standard InChIKey: MLUCVPSAIODCQM-NSCUHMNNSA-N Copy
• CAS Registry Number: 123-73-9
• 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.
• Stereoisomers:
  • 2-Butenal, (Z)-
  • 2-Butenal
• Other names: Crotonaldehyde, (E)-; (E)-Crotonaldehyde; trans-Crotonaldehyde; trans-2-Butenal; Topanel CA; E-Crotonic aldehyde; E-Crotylaldehyde; trans-Crotonal; Aldehyde crotonique; β-Methyl acrolein, trans; NCI-C56279; Rcra waste number U053; Topanel; But-(E)-2-enal; (E)-2-Butenal; (E)-But-2-enal; t-2-Butenal; 2-Butenal, (2E)-; 2-Butenal; Crotonal; Crotonaldehyde
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• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Henry's Law data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
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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
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

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 by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C₄H₆O⁺ (ion structure unspecified)

Ionization energy determinations

References

Go To: Top, 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.

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]

Henninger, 1886
Henninger, A., Several Derivatives of Erythritol and Formates of Polyatomic Alcohols, Ann. Chim. Phys., 1886, [6] 7, 209. [all data]

Dolliver, Gresham, et al., 1938
Dolliver, M.A.; Gresham, T.L.; Kistiakowsky, G.B.; Smith, E.A.; Vaughan, W.E., Heats of Organic Reactions VI. Heats of Hydrogenation of Some Oxygen- Containing Compounds, J. Am. Chem. Soc., 1938, 60, 440. [all data]

Steele, Chirico, et al., 2002
Steele, W.V.; Chirico, R.D.; Cowell, A.B.; Knipmeyer, S.E.; Nguyen, A., Thermodynamic Properties and Ideal-Gas Enthalpies of Formation for Methyl Benzoate, Ethyl Benzoate, ( R )-(+)-Limonene, tert -Amyl Methyl Ether, trans -Crotonaldehyde, and Diethylene Glycol, J. Chem. Eng. Data, 2002, 47, 4, 667-688, https://doi.org/10.1021/je0100847 . [all data]

Van Dam and Oskam, 1978
Van Dam, H.; Oskam, A., He(I) and He(II) photoelectron spectra of some substituted ethylenes, J. Electron Spectrosc. Relat. Phenom., 1978, 13, 273. [all data]

Notes

Go To: Top, Phase change data, Gas phase ion energetics data, References

• Symbols used in this document:
  

  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔvapH	Enthalpy of vaporization

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