2-Butynal

• Formula: C₄H₄O
• Molecular weight: 68.0740
• IUPAC Standard InChI: InChI=1S/C4H4O/c1-2-3-4-5/h4H,1H3 Copy

  
• IUPAC Standard InChIKey: REJPDMLLCDXIOV-UHFFFAOYSA-N Copy
• CAS Registry Number: 1119-19-3
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Tetrolaldehyde; But-2-ynal; CH3CCCHO; 1-Formyl-1-propyne; Methylacetyllealdehyde
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• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Phase change data
  • Mass spectrum (electron ionization)
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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 C₄H₄O⁺ (ion structure unspecified)

Ionization 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.

Terlouw, Burgers, et al., 1979
Terlouw, J.K.; Burgers, P.C.; Holmes, J.L., Thermochemistry and generation of vinylketene, J. Am. Chem. Soc., 1979, 101, 225. [all data]

Holmes and Terlouw, 1979
Holmes, J.L.; Terlouw, J.K., Structures of [C₄H₄O]⁺ ions produced from 2- and 4-pyrone, J. Am. Chem. Soc., 1979, 101, 4973. [all data]

Carlier and Mouvier, 1979
Carlier, P.; Mouvier, G., Etude par spectrometrie de photoelectrons de la structure electronique des ynals et des ynones conjugues, J. Electron Spectrosc. Relat. Phenom., 1979, 17, 169. [all data]

Notes

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