CF3Br+

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 = 93800 ± 1200 gas Cvitas, Gusten, et al., 1977

State:   F
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 71200 ± 1200 gas Cvitas, Gusten, et al., 1977

State:   E
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 62300 ± 1200 gas Cvitas, Gusten, et al., 1977
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 2 CF3 umbrella 620 ± 80 gas PE Cvitas, Gusten, et al., 1977
3 CBr stretch 360 ± 80 gas PE Cvitas, Gusten, et al., 1977

State:   D
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 44300 ± 800 gas Doucet, Sauvageau, et al., 1973
Cvitas, Gusten, et al., 1977
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 1 CF3 stretch 1080 ± 80 gas PE Cvitas, Gusten, et al., 1977
2 CF3 umbrella 690 ± 80 gas PE Cvitas, Gusten, et al., 1977

State:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 36100 ± 800 gas Doucet, Sauvageau, et al., 1973
Cvitas, Gusten, et al., 1977
Tx = 33600 Ar Andrews and Prochaska, 1979

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Td = 29400 Ar Andrews and Prochaska, 1979

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 30500 ± 800 gas Doucet, Sauvageau, et al., 1973
Cvitas, Gusten, et al., 1977

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 17750 ± 800 gas Doucet, Sauvageau, et al., 1973
Cvitas, Gusten, et al., 1977

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
CF stretch 1293 s Ar IR Prochaska and Andrews, 1978
Prochaska and Andrews, 1978, 2
CF stretch 1255 vs Ar IR Prochaska and Andrews, 1978
Prochaska and Andrews, 1978, 2
469 s Ar IR Prochaska and Andrews, 1978
Prochaska and Andrews, 1978, 2

Additional references: Jacox, 1994, page 291; Lee, Han, et al., 1990

Notes

sStrong
vsVery strong
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

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.

Cvitas, Gusten, et al., 1977
Cvitas, J.; Gusten, H.; Klasinc, L.; Novadj, I.; Vancik, H., Photoelectron spectra of bromo- iodotrifluoromethane, Z. Naturforsch. A:, 1977, 32, 1528. [all data]

Doucet, Sauvageau, et al., 1973
Doucet, J.; Sauvageau, P.; Sandorfy, C., Vacuum ultraviolet and photoelectron spectra of fluoro-chloro derivatives of methane, J. Chem. Phys., 1973, 58, 3708. [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 studies of trifluoromethyl halide systems. Infrared spectra of the CF3+, CF2X+, and CF3X+ cations in solid argon, J. Am. Chem. Soc., 1978, 100, 7, 2102, https://doi.org/10.1021/ja00475a021 . [all data]

Prochaska and Andrews, 1978, 2
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]

Lee, Han, et al., 1990
Lee, L.C.; Han, J.C.; Ye, C.; Suto, M., Fluorescence from photoexcitation of CF3X (X=H, Cl, and Br) at 50--106 nm, J. Chem. Phys., 1990, 92, 1, 133, https://doi.org/10.1063/1.458482 . [all data]

Notes

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