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1,2-C6H4F2+


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:   E


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 38480 ± 160 gas Bieri, Asbrink, et al., 1981

State:   D


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

Tx = 33080 ± 1000 gas Bieri, Asbrink, et al., 1981

State:   C


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

Tx = 25820 ± 1000 gas Bieri, Asbrink, et al., 1981

State:   B


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 23157 gas B-X 420 442 Tsuchiya, Takazawa, et al., 1992
Ar B-X 420 445 Lurito and Andrews, 1985


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

a1 480 Ar AB Lurito and Andrews, 1985
b1 135 H gas PF Tsuchiya, Takazawa, et al., 1992
b2 513 gas PF Tsuchiya, Takazawa, et al., 1992
344 gas PF Tsuchiya, Takazawa, et al., 1992

State:   A


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

Tx = 4840 ± 1000 gas Bieri, Asbrink, et al., 1981

State:   X


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

a1 1 3089 gas TPI Kwon, Kim, et al., 2003
2 3032 gas TPI Kwon, Kim, et al., 2003
3 1548 gas TPI Kwon, Kim, et al., 2003
4 1487 gas TPI Kwon, Kim, et al., 2003
5 1397 T gas TPI Kwon, Kim, et al., 2003
6 1342 T gas TPI Kwon, Kim, et al., 2003
7 1171 gas TPI Kwon, Kim, et al., 2003
8 966 gas TPI Kwon, Kim, et al., 2003
9 749 gas TPI Kwon, Kim, et al., 2003
10 553 gas PF TPI Tsuchiya, Takazawa, et al., 1992
Kwon, Kim, et al., 2003
11 294 gas TPI Kwon, Kim, et al., 2003
a2 13 887 T gas TPI Kwon, Kim, et al., 2003
14 704 gas TPI Kwon, Kim, et al., 2003
15 413 gas TPI Kwon, Kim, et al., 2003
16 148 gas TPI Kwon, Kim, et al., 2003
b1 17 994 gas TPI Kwon, Kim, et al., 2003
18 799 gas TPI Kwon, Kim, et al., 2003
19 442 gas TPI Kwon, Kim, et al., 2003
20 254 gas PF TPI Tsuchiya, Takazawa, et al., 1992
Kwon, Kim, et al., 2003
b2 23 1523 gas TPI Kwon, Kim, et al., 2003
24 1435 gas TPI Kwon, Kim, et al., 2003
25 1342 T gas TPI Kwon, Kim, et al., 2003
26 1202 gas TPI Kwon, Kim, et al., 2003
27 1065 gas TPI Kwon, Kim, et al., 2003
29 505 gas TPI Kwon, Kim, et al., 2003
30 382 gas TPI Kwon, Kim, et al., 2003
831 gas PF Tsuchiya, Takazawa, et al., 1992
b2 396 gas PF Tsuchiya, Takazawa, et al., 1992

Additional references: Jacox, 1994, page 429

Notes

H(1/2)(2nu)
TTentative assignment or approximate value
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.

Bieri, Asbrink, et al., 1981
Bieri, G.; Asbrink, L.; Von Niessen, W., 30.4 nm He(II) photoelectron spectra of organic molecules. Part IV. Fluoro-compounds (C,H,F), J. Electron Spectrosc. Relat. Phenom., 1981, 23, 281. [all data]

Tsuchiya, Takazawa, et al., 1992
Tsuchiya, Y.; Takazawa, K.; Fujii, M.; Ito, M., Electronic spectra of o-, m-, and p-difluorobenzene cations: striking similarity in vibronic coupling between the neutral molecule and its cation, J. Phys. Chem., 1992, 96, 1, 99, https://doi.org/10.1021/j100180a022 . [all data]

Lurito and Andrews, 1985
Lurito, J.T.; Andrews, L., Vibronic absorption spectra of fluorobenzene and difluorobenzene radical cations in solid argon, Chem. Phys., 1985, 97, 1, 121, https://doi.org/10.1016/0301-0104(85)87084-1 . [all data]

Kwon, Kim, et al., 2003
Kwon, C.H.; Kim, H.L.; Kim, M.S., Vacuum ultraviolet mass-analyzed threshold ionization spectroscopy of p-, m-, and o-difluorobenzenes. Ionization energies and vibrational frequencies and structures of the cations, J. Chem. Phys., 2003, 118, 14, 6327, https://doi.org/10.1063/1.1557931 . [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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