1,2-C6H4F2+
- Formula: C6H4F2+
- Molecular weight: 114.0922
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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 | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| To = 38480 ± 160 | gas | Bieri, Asbrink, et al., 1981 | |||||
State: D
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| Tx = 33080 ± 1000 | gas | Bieri, Asbrink, et al., 1981 | |||||
State: C
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| Tx = 25820 ± 1000 | gas | Bieri, Asbrink, et al., 1981 | |||||
State: B
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (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 | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| Tx = 4840 ± 1000 | gas | Bieri, Asbrink, et al., 1981 | |||||
State: X
Additional references: Jacox, 1994, page 429
Notes
| H | (1/2)(2ν) |
| T | Tentative assignment or approximate value |
| o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
| x | Energy 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
Go To: Top, Vibrational and/or electronic energy levels, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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