CH2CHO

• Formula: C₂H₃O
• Molecular weight: 43.0446
• IUPAC Standard InChI: InChI=1S/C2H3O/c1-2-3/h2H,1H2 Copy

  
• IUPAC Standard InChIKey: FATAVLOOLIRUNA-UHFFFAOYSA-N Copy
• CAS Registry Number: 4400-01-5
• 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:
  • Vinyloxy radical
• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Vibrational and/or electronic energy levels
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
• Options:
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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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess

View reactions leading to C₂H₃O⁺ (ion structure unspecified)

Electron affinity determinations

References

Go To: Top, 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.

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]

Goebbert, Khuseynov, et al., 2011
Goebbert, D.J.; Khuseynov, D.; Sanov, A., O- + Acetaldehyde Reaction Products: Search for Singlet Formylmethylene, a Wolff Rearrangement intermediate, J. Phys. Chem. A, 2011, 115, 15, 3208-3217, https://doi.org/10.1021/jp112331y . [all data]

Mead, Lykke, et al., 1984
Mead, R.D.; Lykke, K.R.; Lineberger, W.C.; Marks, J.; Brauman, J.I., Spectroscopy and Dynamics of the Dipole-Bound State of Acetaldehyde Enolate., J. Chem. Phys., 1984, 81, 11, 4883., https://doi.org/10.1063/1.447515 . [all data]

Ellison, Engleking, et al., 1982
Ellison, G.B.; Engleking, P.C.; Lineberger, W.C., Photoelectron spectroscopy of alkoxide and enolate negative ions, J. Phys. Chem., 1982, 86, 4873. [all data]

Alconcel, Deyerl, et al., 1999
Alconcel, L.S.; Deyerl, H.J.; Zengin, V.; Continetti, R.E., Structure and energetics of vinoxide and the X((2)A) and A((2)A') vinoxy radicals, J. Phys. Chem. A, 1999, 103, 46, 9190-9194, https://doi.org/10.1021/jp992126s . [all data]

Jackson, Hiberty, et al., 1981
Jackson, R.L.; Hiberty, P.C.; Brauman, J.I., Threshold Resonances in the Electron Photodetachment spectrum of Acetaldehyde Anion. Evidence for a low-lying Dipole Supported State., J. Chem. Phys., 1981, 74, 7, 3705, https://doi.org/10.1063/1.441598 . [all data]

Zimmerman, Reed, et al., 1977
Zimmerman, A.H.; Reed, K.J.; Brauman, J.I., Photodetachment of electrons from enolate anions. Gas phase electron affinities of enolate radicals, J. Am. Chem. Soc., 1977, 99, 7203. [all data]

Notes

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• Symbols used in this document:
  

  EA	Electron affinity

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