F2C=C radical anion

Gas phase thermochemistry 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 compiled by: John E. Bartmess

Quantity Value Units Method Reference Comment
ΔfH°gas-75. ± 50.kJ/molEIAEHeni and Illenberger, 1986From F2C=CHF
ΔfH°gas<14.6kJ/molIMRBDawson and Jennings, 1976O- + CH2=CF2 ->. G3MP2B3 calculations indicate a HOF(A-) of -22 kcal/mol.
ΔfH°gas-649. ± 59.kJ/molEIAEHarland and Thynne, 1975From CF3CHO. G3MP2B3 calculations indicate an EA of ca. 2.3 eV, and HOF(A-) of -22 kcal/mol.

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:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Td = 18190 ± 50 gas Gilles, Lineberger, et al., 1993

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 2 CF2 s-stretch 800 ± 35 gas PE Gilles, Lineberger, et al., 1993
3 CF2 scissors 505 ± 25 gas PE Gilles, Lineberger, et al., 1993

Additional references: Jacox, 1994, page 203

Notes

dPhotodissociation threshold

References

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

Heni and Illenberger, 1986
Heni, M.; Illenberger, E., The Unimolecular Decompositions of the Fluoroethylene Radical Anions formed by Electron Attachment, J. Electron Spectros. Rel. Phenom., 1986, 41, 2, 453, https://doi.org/10.1016/0368-2048(86)85022-8 . [all data]

Dawson and Jennings, 1976
Dawson, J.H.J.; Jennings, K.R., Production of gas phase radical anions by reaction of O-. Ions with organic substrates, J. Chem. Soc. Faraday Trans. 2, 1976, 72, 700. [all data]

Harland and Thynne, 1975
Harland, P.W.; Thynne, J.C.J., Dissociative eElectron cCapture in tTrifluoroacetaldehyde, pentafluoropropionaldehyde, and heptafluorobutyraldehyde, Int. J. Mass Spectrom. Ion Phys., 1975, 18, 73. [all data]

Gilles, Lineberger, et al., 1993
Gilles, M.K.; Lineberger, W.C.; Ervin, K.M., Photoelectron Spectroscopy of the Monofluorovinylidene and Difluorovinylidene Anions: The Monofluorovinylidene-Fluoroacetylene Rearrangement, J. Am. Chem. Soc., 1993, 115, 3, 1031, https://doi.org/10.1021/ja00056a030 . [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]

Notes

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