Hydroxymethyl radical

• Formula: CH₃O
• Molecular weight: 31.0339
• IUPAC Standard InChI: InChI=1S/CH3O/c1-2/h2H,1H2 Copy

  
• IUPAC Standard InChIKey: CBOIHMRHGLHBPB-UHFFFAOYSA-N Copy
• CAS Registry Number: 2597-43-5
• 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.
• Isotopologues:
  • Methyl radical, hydroxy-d1-
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Vibrational and/or electronic energy levels
• Data at other public NIST sites:
  • Computational Chemistry Comparison and Benchmark Database
  • Gas Phase Kinetics Database
• Options:
  • Switch to SI units

Gas phase ion energetics data

Go To: Top, References, Notes

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:
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to CH₃O⁺ (ion structure unspecified)

Ionization energy determinations

Appearance energy 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]

Johnson and Hudgens, 1996
Johnson, R.D., III; Hudgens, J.W., Structural and thermochemical properties of hydroxymethyl (CH₂OH) radicals and cations derived from observations of B ²A'(3p)←X ²A" electronic spectra and from ab initio calculations, J. Phys. Chem., 1996, 100, 19874. [all data]

Berkowitz, Ellison, et al., 1994
Berkowitz, J.; Ellison, G.B.; Gutman, D., Three methods to measure RH bond energies, J. Phys. Chem., 1994, 98, 2744. [all data]

Tao, Klemm, et al., 1992
Tao, W.; Klemm, R.B.; Nesbitt, F.L.; Stief, J.L., A discharge flow-photoionization mass spectrometric study of hydroxymethyl radicals (H₂COH and H₂COD): Photoionization spectrum and ionization energy, J. Phys. Chem., 1992, 96, 104. [all data]

Dyke, Ellis, et al., 1984
Dyke, J.M.; Ellis, A.R.; Jonathan, N.; Keddar, N.; Morris, A., Observation of the CH₂OH radical in the gas Ppase by vacuum ultraviolet photoelectron spectroscopy, Chem. Phys. Lett., 1984, 111, 207. [all data]

Griller and Lossing, 1981
Griller, D.; Lossing, F.P., On the thermochemistry of α-aminoalkyl radicals, J. Am. Chem. Soc., 1981, 103, 1586. [all data]

Fisher and Henderson, 1967
Fisher, I.P.; Henderson, E., Mass spectrometry of free radicals, J. Chem. Soc. Faraday Trans., 1967, 63, 1342. [all data]

Notes

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

• Symbols used in this document:
  

  AE	Appearance energy

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.