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 thermochemistry data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
• Options:
  • Switch to calorie-based units

Gas phase thermochemistry data

Go To: Top, Vibrational and/or electronic energy levels, References, Notes

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

Vibrational and/or electronic energy levels

Go To: Top, Gas phase thermochemistry 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: Marilyn E. Jacox

State:   3pz

State:   ?

State:   3px

State:   3s

State:   X

Additional references: Jacox, 1994, page 237; Jacox, 1998, page 272; Jacox, 2003, page 258; Pagsberg, Munk, et al., 1989

Notes

References

Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, Notes

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

Tsang, 1996
Tsang, W., Heats of Formation of Organic Free Radicals by Kinetic Methods in Energetics of Organic Free Radicals, Martinho Simoes, J.A.; Greenberg, A.; Liebman, J.F., eds., Blackie Academic and Professional, London, 1996, 22-58. [all data]

Dulcey and Hudgens, 1986
Dulcey, C.S.; Hudgens, J.W., Multiphoton ionization spectroscopy and vibrational analysis of a 3p Rydberg state of the hydroxymethyl radical, J. Chem. Phys., 1986, 84, 10, 5262, https://doi.org/10.1063/1.449935 . [all data]

Bomse, Dougal, et al., 1986
Bomse, D.S.; Dougal, S.; Woodin, R.L., Multiphoton ionization studies of IR multiphoton dissociation: direct carbon-hydrogen bond cleavage in methanol, J. Phys. Chem., 1986, 90, 12, 2640, https://doi.org/10.1021/j100403a016 . [all data]

Pagsberg, Munk, et al., 1988
Pagsberg, P.; Munk, J.; Sillesen, A.; Anastasi, C., UV spectrum and kinetics of hydroxymethyl radicals, Chem. Phys. Lett., 1988, 146, 5, 375, https://doi.org/10.1016/0009-2614(88)87462-1 . [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]

Aristov, Conroy, et al., 2000
Aristov, V.; Conroy, D.; Reisler, H., Symmetry and lifetime of the hydroxymethyl radical in the 3p Rydberg state, Chem. Phys. Lett., 2000, 318, 4-5, 393, https://doi.org/10.1016/S0009-2614(00)00042-7 . [all data]

Jacox and Milligan, 1973
Jacox, M.E.; Milligan, D.E., Matrix isolation study of the vacuum-ultraviolet photolysis of methanol, J. Mol. Spectrosc., 1973, 47, 1, 148, https://doi.org/10.1016/0022-2852(73)90084-2 . [all data]

Jacox, 1981
Jacox, M.E., The reaction of excited argon atoms and of F atoms with Methanol. Vibrational spectrum of CH2OH isolated in solid argon, Chem. Phys., 1981, 59, 1-2, 213, https://doi.org/10.1016/0301-0104(81)80101-2 . [all data]

Feng, Huang, et al., 2002
Feng, L.; Huang, X.; Reisler, H., Photodissociative spectroscopy of the hydroxymethyl radical (CH[sub 2]OH) in the 3s and 3p[sub x] states, J. Chem. Phys., 2002, 117, 10, 4820, https://doi.org/10.1063/1.1498469 . [all data]

Feng, Wei, et al., 2004
Feng, L.; Wei, J.; Reisler, H., Rotationally Resolved Infrared Spectroscopy of the Hydroxymethyl Radical (CH, J. Phys. Chem. A, 2004, 108, 39, 7903, https://doi.org/10.1021/jp040101+ . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Jacox, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]

Pagsberg, Munk, et al., 1989
Pagsberg, P.; Munk, J.; Anastasi, C.; Simpson, V., UV spectrum of CD2OD and its reactions with O2, NO and NO2, Chem. Phys. Lett., 1989, 157, 3, 271, https://doi.org/10.1016/0009-2614(89)87246-X . [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, References

• Symbols used in this document:
  

  ΔfH°gas

  Enthalpy of formation of gas at standard conditions

• 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.