CF2Br2+

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:   G
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 60700 ± 1000 gas Doucet, Gilbert, et al., 1975

State:   F
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 42900 ± 1000 gas Doucet, Gilbert, et al., 1975

State:   E
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 34530 ± 400 gas Doucet, Gilbert, et al., 1975
Tx = 28000 Ar Andrews and Prochaska, 1979

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Td = 23800 U Ar Andrews and Prochaska, 1979

State:   D
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 16700 ± 400 gas Doucet, Gilbert, et al., 1975

State:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 9760 ± 400 gas Doucet, Gilbert, et al., 1975

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 6780 ± 400 gas Doucet, Gilbert, et al., 1975

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 3310 ± 400 gas Doucet, Gilbert, et al., 1975

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
CF2 stretch 1244 s Ar IR Prochaska and Andrews, 1978
873 m Ar IR Prochaska and Andrews, 1978
868 m Ar IR Prochaska and Andrews, 1978
428 w m Ar IR Prochaska and Andrews, 1978
406 w m Ar IR Prochaska and Andrews, 1978

Additional references: Jacox, 1994, page 292

Notes

wWeak
mMedium
sStrong
UUpper bound
xEnergy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state.
xxEnergy separation between the band maxima of both the excited state and the ground state of a molecular cation, derived from a photoelectron spectrum.
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.

Doucet, Gilbert, et al., 1975
Doucet, J.; Gilbert, R.; Sauvageau, P.; Sandorfy, C., Photoelectron and far-ultraviolet spectra of CF3Br, CF2BrCl, and CF2Br2, J. Chem. Phys., 1975, 62, 366. [all data]

Andrews and Prochaska, 1979
Andrews, L.; Prochaska, F.T., Absorption spectra and photochemistry of the chlorofluoro- and bromofluoromethane cations in solid argon, J. Phys. Chem., 1979, 83, 3, 368, https://doi.org/10.1021/j100466a015 . [all data]

Prochaska and Andrews, 1978
Prochaska, F.T.; Andrews, L., Matrix photoionization and radiolysis of the fluorobromomethanes. Infrared spectra and photochemistry of dibromofluoromethyl(1+), bromodifluoromethyl(1+), trifluoromethyl(1+), and the parent cations, J. Phys. Chem., 1978, 82, 15, 1731, https://doi.org/10.1021/j100504a015 . [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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