Acetaldehyde, hydroxy-

• Formula: C₂H₄O₂
• Molecular weight: 60.0520
• IUPAC Standard InChI: InChI=1S/C2H4O2/c3-1-2-4/h1,4H,2H2 Copy

  
• IUPAC Standard InChIKey: WGCNASOHLSPBMP-UHFFFAOYSA-N Copy
• CAS Registry Number: 141-46-8
• 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: Glycolaldehyde; Diose; Glycolic aldehyde; Hydroxyacetaldehyde; Methylol formaldehyde; Monomethylolformaldehyde; HOCH2CHO; Glycoaldehyde; NSC 67935; glycollaldehyde
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• Information on this page:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Phase change data
  • Henry's Law data
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Reaction thermochemistry data

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

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

Data compiled by: John E. Bartmess

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Individual Reactions

C₂H₃O₂^- +  =

By formula: C₂H₃O₂^- + H⁺ = C₂H₄O₂

Gas phase ion energetics data

Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), References, Notes

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:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard

View reactions leading to C₂H₄O₂⁺ (ion structure unspecified)

Appearance energy determinations

De-protonation reactions

C₂H₃O₂^- +  =

By formula: C₂H₃O₂^- + H⁺ = C₂H₄O₂

Mass spectrum (electron ionization)

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References, Notes

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, Reaction thermochemistry 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.

Dawson and Nibbering, 1980
Dawson, J.H.J.; Nibbering, N.M.M., The gas phase anionic chemistry of saturated and unsaturated aliphatic nitriles, Int. J. Mass Spectrom. Ion Phys., 1980, 33, 3. [all data]

Holmes and Lossing, 1984
Holmes, J.L.; Lossing, F.P., Heats of formation of organic radicals from appearance energies, Int. J. Mass Spectrom. Ion Processes, 1984, 58, 113. [all data]

Holmes, Lossing, et al., 1982
Holmes, J.L.; Lossing, F.P.; Terlouw, J.K.; Burgers, P.C., The radical cation [CH₂OH₂]⁺ and related stable gas phase ion-dipole complexes, J. Am. Chem. Soc., 1982, 104, 2931. [all data]

Notes

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  AE	Appearance energy
  ΔrG°	Free energy of reaction at standard conditions

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