1,2,4,5-C6H2F4+
- Formula: C6H2F4+
- Molecular weight: 150.0731
- CAS Registry Number: 34528-25-1
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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: B
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 24443.5 | gas | B-X | 385 | 500 | Allan, Maier, et al., 1977 | ||
Cossart-Magos, Cossart, et al., 1979 | |||||||
Bondybey and Miller, 1979 | |||||||
Tuckett, 1981 | |||||||
To = 24352 | Ne | B-X | 385 | 510 | Bondybey, English, et al., 1980 | ||
To = 24072 | Ar | Bondybey, Miller, et al., 1979 | |||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
ag | 2 | 1536 | Ne | LF | Bondybey, English, et al., 1980 | ||
2 | 1536 | Ar | LF | Bondybey, Miller, et al., 1979 | |||
3 | 1392 | Ar | LF | Bondybey, Miller, et al., 1979 | |||
4 | 725 | Ne | LF | Bondybey, English, et al., 1980 | |||
4 | 722 | Ar | LF | Bondybey, Miller, et al., 1979 | |||
5 | 460 | gas | LF | Bondybey and Miller, 1979 Nibu, Fujii, et al., 1999 | |||
5 | 465 | Ne | LF | Bondybey, English, et al., 1980 | |||
5 | 470 | Ar | LF | Bondybey, Miller, et al., 1979 | |||
6 | 274 | gas | LF | Bondybey and Miller, 1979 Nibu, Fujii, et al., 1999 | |||
6 | 276 | Ne | LF | Bondybey, English, et al., 1980 | |||
6 | 279 | Ar | LF | Bondybey, Miller, et al., 1979 | |||
State: A
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
gas | B-A | 550 | 650 | Allan, Maier, et al., 1977 | |||
To = 6115 | Ne | B-A | 545 | 625 | Bondybey, Vaughn, et al., 1981 | ||
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
ag | 2 | 1558 | gas | EF LF | Tuckett, 1981 Nibu, Fujii, et al., 1999 | ||
2 | 1558 | Ne | LF | Bondybey, English, et al., 1980 | |||
3 | 1477 | gas | EF | Tuckett, 1981 | |||
3 | 1476 | Ne | LF | Bondybey, English, et al., 1980 | |||
4 | 726 | Ne | LF | Bondybey, English, et al., 1980 | |||
5 | 482 | gas | EM EF | Cossart-Magos, Cossart, et al., 1979 Tuckett, 1981 | |||
5 | 482 | gas | PI LF | Takazawa, Fujii, et al., 1992 Nibu, Fujii, et al., 1999 | |||
5 | 485 | Ne | LF | Bondybey, English, et al., 1980 | |||
5 | 480 | Ar | LF | Bondybey, Miller, et al., 1979 | |||
6 | 287 | gas | EF LF | Tuckett, 1981 Nibu, Fujii, et al., 1999 | |||
6 | 287 | Ne | LF | Bondybey, English, et al., 1980 | |||
6 | 289 | Ar | LF | Bondybey, Miller, et al., 1979 | |||
b1u | 183 | H | gas | PI | Takazawa, Fujii, et al., 1992 | ||
Additional references: Jacox, 1994, page 437; Jacox, 2003, page 401; Dujardin, Leach, et al., 1980; Maier and Thommen, 1981; Bondybey, Vaughn, et al., 1981, 2
Notes
H | (1/2)(2ν) |
o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
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.
Allan, Maier, et al., 1977
Allan, M.; Maier, J.P.; Marthaler, O.,
Radative relaxation of the B(π-1)EXCITED ELECTRONIC STATES OF THE RADICAL CATIONS OF REXAFLUOROBENZENE, PENTAFLUOROBENZENE, 1,2,3,4-, 1,2,3,5-, 1,2,4,5-TETRAFLUOROBENZENE, 1,3,5-, 1,2,4-TRIFLUOROBENZENE AND 1,3-DIFLUOROBENZENE,
Chem. Phys., 1977, 26, 1, 131, https://doi.org/10.1016/0301-0104(77)87099-7
. [all data]
Cossart-Magos, Cossart, et al., 1979
Cossart-Magos, C.; Cossart, D.; Leach, S.,
Emission spectra of seven fluorobenzene cations,
Mol. Phys., 1979, 37, 3, 793, https://doi.org/10.1080/00268977900103201
. [all data]
Bondybey and Miller, 1979
Bondybey, V.E.; Miller, T.A.,
Laser induced fluorescence from fluorobenzene radical cations in the gas phase,
J. Chem. Phys., 1979, 70, 1, 138, https://doi.org/10.1063/1.437231
. [all data]
Tuckett, 1981
Tuckett, R.P.,
Fluorescence spectra of fluorobenzene cations excited in a supersonic molecular beam,
Chem. Phys., 1981, 58, 2, 151, https://doi.org/10.1016/0301-0104(81)80052-3
. [all data]
Bondybey, English, et al., 1980
Bondybey, V.E.; English, J.H.; Miller, T.A.,
Laser-induced fluorescence spectra of several nonsymmetrical fluorobenzene radical cations in solid Ne,
J. Mol. Spectrosc., 1980, 81, 2, 455, https://doi.org/10.1016/0022-2852(80)90205-2
. [all data]
Bondybey, Miller, et al., 1979
Bondybey, V.E.; Miller, T.A.; English, J.H.,
Matrix laser fluorescence spectra of several fluorobenzene radical cations,
J. Am. Chem. Soc., 1979, 101, 5, 1248, https://doi.org/10.1021/ja00499a033
. [all data]
Nibu, Fujii, et al., 1999
Nibu, Y.; Fujii, N.; Shimada, H.,
Electronic Spectra of Tetrafluorobenzene Cations Produced by Pulsed Glow Discharge in a Supersonic Free Jet.,
Bull. Chem. Soc. Japan, 1999, 72, 11, 2395, https://doi.org/10.1246/bcsj.72.2395
. [all data]
Bondybey, Vaughn, et al., 1981
Bondybey, V.E.; Vaughn, C.R.; Miller, T.A.; English, J.H.; Shiley, R.H.,
Halogenated benzene radical cations and ground state degeneracy splitting by asymmetric substitution,
J. Chem. Phys., 1981, 74, 12, 6584, https://doi.org/10.1063/1.441120
. [all data]
Takazawa, Fujii, et al., 1992
Takazawa, K.; Fujii, M.; Ebata, T.; Ito, M.,
Pulsed-field-ionization spectroscopy for the study of molecular cations,
Chem. Phys. Lett., 1992, 189, 6, 592, https://doi.org/10.1016/0009-2614(92)85256-A
. [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]
Jacox, 2003
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement B,
J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629
. [all data]
Dujardin, Leach, et al., 1980
Dujardin, G.; Leach, S.; Taieb, G.,
Fluorescence quantum yields and lifetimes of nine fluorobenzene cations. Electronic state relaxation processes,
Chem. Phys., 1980, 46, 3, 407, https://doi.org/10.1016/0301-0104(80)85217-7
. [all data]
Maier and Thommen, 1981
Maier, J.P.; Thommen, F.,
Fluorescence quantum yields and lifetimes of fluorobenzene cations in selected levels of their B and C states determined by photoelectron-photoion coincidence spectroscopy,
Chem. Phys., 1981, 57, 319. [all data]
Bondybey, Vaughn, et al., 1981, 2
Bondybey, V.E.; Vaughn, C.; Miller, T.A.; English, J.H.; Shiley, R.H.,
Spectroscopy and decay dynamics of several methyl- and fluorine-substituted benzene radical cations,
J. Am. Chem. Soc., 1981, 103, 21, 6303, https://doi.org/10.1021/ja00411a006
. [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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