Fluoromethyl radical

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Vibrational and/or electronic energy levels

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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 by: Marilyn E. Jacox

State:   5p
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 67265 ± 10 gas Hudgens, Dulcey, et al., 1987

State:   4p
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 63275 ± 10 gas 4p-X 147 158 Hudgens, Dulcey, et al., 1987
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 2 CF stretch 1580 ± 20 gas MPI Hudgens, Dulcey, et al., 1987
3 CH2 scissor 1443 ± 20 gas MPI Hudgens, Dulcey, et al., 1987
b1 4 OPLA 1259 ± 20 gas MPI Hudgens, Dulcey, et al., 1987

State:   3p
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 52863 ± 10 gas 3p-X 167 193 Hudgens, Dulcey, et al., 1987
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 2 CF stretch 1575 ± 20 gas MPI Hudgens, Dulcey, et al., 1987
3 CH2 scissor 1420 ± 20 gas MPI Hudgens, Dulcey, et al., 1987
b1 4 OPLA 1223 ± 20 gas MPI Hudgens, Dulcey, et al., 1987

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 1 CH2 s-stretch 3044.38 gas IR Whitney, Dong, et al., 2006
3 CF stretch 1170.42 gas DL Yamada and Hirota, 1986
3 CF stretch 1165.4 Ne IR Wu, Chen, et al., 2010
3 CF stretch 1163 m Ar IR Jacox and Milligan, 1969
Raymond and Andrews, 1971
Jacox, 1981
b1 4 OPLA 300 ± 30 gas MW Endo, Yamada, et al., 1983
4 OPLA 260 ± 30 gas MPI Hudgens, Dulcey, et al., 1987
b2 5 CH2 a-stretch 3183.86 gas IR Whitney, Dong, et al., 2006

Additional references: Jacox, 1994, page 149; Jacox, 2003, page 176; Fessenden and Schuler, 1965; Mucha, Jennings, et al., 1977; Nolte, Wagner, et al., 1999

Notes

mMedium
oEnergy separation between the v = 0 levels of the excited and electronic ground states.

References

Go To: Top, 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.

Hudgens, Dulcey, et al., 1987
Hudgens, J.W.; Dulcey, C.S.; Long, G.R.; Bogan, D.J., Multiphoton ionization spectra of radical products in the F(2P)+ketene system: Spectral assignments and formation reaction for CH2F, observation of CF and CH, J. Chem. Phys., 1987, 87, 8, 4546, https://doi.org/10.1063/1.452867 . [all data]

Whitney, Dong, et al., 2006
Whitney, E.S.; Dong, F.; Nesbitt, D.J., Jet-cooled infrared spectroscopy in slit supersonic discharges: Symmetric and antisymmetric CH[sub 2] stretching modes of fluoromethyl (CH[sub 2]F) radical, J. Chem. Phys., 2006, 125, 5, 054304, https://doi.org/10.1063/1.2208613 . [all data]

Yamada and Hirota, 1986
Yamada, C.; Hirota, E., Infrared diode laser spectroscopy of the ν3 band of the fluoromethyl radical, CH2F, J. Mol. Spectrosc., 1986, 116, 1, 101, https://doi.org/10.1016/0022-2852(86)90255-9 . [all data]

Wu, Chen, et al., 2010
Wu, Y.-J.; Chen, H.-F.; Chou, S.-L.; Lin, M.-Y.; Cheng, B.M., Vacuum-ultraviolet photolysis of H3CF in solid neon: Infrared spectra of HCF and CF+, Chem. Phys. Lett., 2010, 497, 1-3, 12, https://doi.org/10.1016/j.cplett.2010.07.087 . [all data]

Jacox and Milligan, 1969
Jacox, M.E.; Milligan, D.E., Matrix-Isolation Study of the Vacuum-Ultraviolet Photolysis of Methyl Fluoride. The Infrared Spectra of the Free Radicals CF, HCF, and H2CF, J. Chem. Phys., 1969, 50, 8, 3252, https://doi.org/10.1063/1.1671548 . [all data]

Raymond and Andrews, 1971
Raymond, J.I.; Andrews, L., Matrix reactions of fluorohalomethanes with alkali metals. Infrared spectrum and bonding in the monofluoromethyl radical, J. Phys. Chem., 1971, 75, 21, 3235, https://doi.org/10.1021/j100690a007 . [all data]

Jacox, 1981
Jacox, M.E., Hydrogen-atom abstraction by atomic fluorine. Vibrational spectrum of the F+CH3F reaction products trapped in solid argon, Chem. Phys., 1981, 59, 1-2, 199, https://doi.org/10.1016/0301-0104(81)80100-0 . [all data]

Endo, Yamada, et al., 1983
Endo, Y.; Yamada, C.; Saito, S.; Hirota, E., The microwave spectrum of the fluoromethyl radical, CH2F, J. Chem. Phys., 1983, 79, 4, 1605, https://doi.org/10.1063/1.446006 . [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, 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]

Fessenden and Schuler, 1965
Fessenden, R.W.; Schuler, R.H., ESR Spectra and Structure of the Fluorinated Methyl Radicals, J. Chem. Phys., 1965, 43, 8, 2704, https://doi.org/10.1063/1.1697199 . [all data]

Mucha, Jennings, et al., 1977
Mucha, J.A.; Jennings, D.A.; Evenson, K.M.; Hougen, J.T., Far-infrared laser magnetic resonance spectrum of CH2F, J. Mol. Spectrosc., 1977, 68, 1, 122, https://doi.org/10.1016/0022-2852(77)90427-1 . [all data]

Nolte, Wagner, et al., 1999
Nolte, J.; Wagner, H.G.; Sears, T.J.; Temps, F., The Far-Infrared Laser Magnetic Resonance Spectrum of CH2F, J. Mol. Spectrosc., 1999, 195, 1, 43, https://doi.org/10.1006/jmsp.1999.7813 . [all data]

Notes

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