CF2=CCl2+

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:   I
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 68820 ± 400 gas Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987

State:   F,G,H
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 53250 ± 320 gas Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987

State:   E
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 47200 ± 320 gas Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987

State:   D
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 38570 ± 320 gas Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987

State:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 25660 ± 320 gas Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 CCl2 scissors 250 ± 40 gas PE Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 23240 ± 320 gas Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 CF2 s-stretch 1070 ± 60 gas PE Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987
600 ± 40 gas PE Bunzli, Frost, et al., 1976
CCl2 scissors 190 ± 40 gas PE Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 20000 ± 400 gas Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 C=C stretch 1540 ± 40 gas PE Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987
CF2 s-stretch 1160 ± 80 gas PE Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987
CCl2 s-stretch 530 ± 80 gas PE Lake and Thompson, 1970
Bunzli, Frost, et al., 1976
Potts, Benson, et al., 1987

Additional references: Jacox, 1994, page 352

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.

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.

Lake and Thompson, 1970
Lake, R.F.; Thompson, H., Photoelectron spectra of halogenated ethylenes, Proc. Roy. Soc. (London), 1970, A315, 323. [all data]

Bunzli, Frost, et al., 1976
Bunzli, J.C.; Frost, D.C.; Herring, F.G.; McDowell, C.A., Assignment of the doublet states arising from ionization of chlorine lone-pairs in molecules possessing C2v symmetry, J. Electron Spectrosc. Relat. Phenom., 1976, 9, 289. [all data]

Potts, Benson, et al., 1987
Potts, A.W.; Benson, J.M.; Novak, I.; Svensson, W.A., Electron correlation effects in the valence shell photoelectron spectra of haloethenes, Chem. Phys., 1987, 115, 2, 253, https://doi.org/10.1016/0301-0104(87)80039-3 . [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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