t-CHF=CHF+

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:   F,G
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 69060 ± 320 gas Sell and Kuppermann, 1979
Bieri, Niessen, et al., 1981

State:   D,E
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txd = 54780 ± 320 gas Sell and Kuppermann, 1979
Bieri, Niessen, et al., 1981

State:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txd = 49780 ± 320 gas Sell and Kuppermann, 1979
Bieri, Niessen, et al., 1981

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 39370 ± 160 gas Maier, Marthaler, et al., 1979
Sell and Kuppermann, 1979
Bieri, Niessen, et al., 1981
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
ag 1 CH s-stretch 2820 ± 80 gas PE Sell and Kuppermann, 1979
CF s-stretch 1180 ± 80 gas PE Sell and Kuppermann, 1979

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tod = 26630 ± 160 gas Maier, Marthaler, et al., 1979
Sell and Kuppermann, 1979
Bieri, Niessen, et al., 1981
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
ag CF deform. 500 ± 80 gas PE Sell and Kuppermann, 1979

State:   F

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
ag 920 ± 80 gas PE Maier, Marthaler, et al., 1979
450 ± 80 gas PE Sell and Kuppermann, 1979

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
ag 2 C=C stretch 1600 ± 80 gas PE Sell and Kuppermann, 1979
3 CH deform. 1230 ± 80 gas PE Sell and Kuppermann, 1979
4 CF s-stretch 850 ± 80 gas PE Sell and Kuppermann, 1979
5 CF deform. 550 ± 80 gas PE Sell and Kuppermann, 1979

Additional references: Jacox, 1994, page 333; Stadelmann and Vogt, 1980

Notes

oEnergy separation between the v = 0 levels of the excited and electronic ground states.
xEnergy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state.
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.

Sell and Kuppermann, 1979
Sell, J.A.; Kuppermann, A., Variable angle photoelectron spectroscopy of the fluoroethylenes, J. Chem. Phys., 1979, 71, 4703. [all data]

Bieri, Niessen, et al., 1981
Bieri, G.; Niessen, W.V.; Asbrink, L.; Svensson, A., The He(II) photoelectron spectra of the fluorosubstituted ethylenes and their analysis by the green's function method, Chem. Phys., 1981, 60, 61. [all data]

Maier, Marthaler, et al., 1979
Maier, J.P.; Marthaler, O.; Bieri, G., à 2A1 → X 2B1 emission spectrum of cis-1,2-difluoroethylene cation and the non-radiation decay of the à states of the haloethylene cations in the gaseous phase, Chem. Phys., 1979, 44, 1, 131, https://doi.org/10.1016/0301-0104(79)80069-5 . [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]

Stadelmann and Vogt, 1980
Stadelmann, J.P.; Vogt, J., A photoelectron-photoion coincidence study of cis- and trans- difluoroethene, Int. J. Mass Spectrom. Ion Phys., 1980, 35, 83. [all data]

Notes

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