SiF4+

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:   D
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 50800 ± 200 gas Fehlner and Turner, 1974
Smith, Tuckett, et al., 1994
Biehl, Boyle, et al., 1997
Cooper, Shpinkova, et al., 2001
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 1 SiF stretch 743.4 ± 0.5 gas EF TPE Mason and Tuckett, 1987
Smith, Tuckett, et al., 1994
Cooper, Shpinkova, et al., 2001
e 2 Deformation 258 ± 40 gas TPE Smith, Tuckett, et al., 1994
f2 3 SiF stretch 1178 ± 40 gas TPE Smith, Tuckett, et al., 1994

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tot = 18146.8 gas D-C 530 730 Mason and Tuckett, 1987
Suto, Wang, et al., 1987
van Lonkhuyzen and Aarts, 1987
Lambert, Mason, et al., 1988

State:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 33130 ± 100 gas Fehlner and Turner, 1974
Lloyd and Roberts, 1975
Jadrny, Karlsson, et al., 1977
Smith, Tuckett, et al., 1994
Cooper, Shpinkova, et al., 2001
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 1 SiF stretch 706.6 ± 0.5 gas PE EF Lloyd and Roberts, 1975
Jadrny, Karlsson, et al., 1977
Mason and Tuckett, 1987
Smith, Tuckett, et al., 1994
Cooper, Shpinkova, et al., 2001
e 2 Deformation 159.0 ± 0.5 gas EF Mason and Tuckett, 1987
f2 4 Deformation 431.0 ± 0.5 gas PE EF Lloyd and Roberts, 1975
Jadrny, Karlsson, et al., 1977
Mason and Tuckett, 1987
Smith, Tuckett, et al., 1994
Cooper, Shpinkova, et al., 2001

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txt = 32900 gas D-A Aarts, 1986
Suto, Wang, et al., 1987

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txt = 27000 gas D-B Aarts, 1986
Suto, Wang, et al., 1987

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 22580 ± 100 gas Fehlner and Turner, 1974
Lloyd and Roberts, 1975
Jadrny, Karlsson, et al., 1977
Cooper, Shpinkova, et al., 2001
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
a1 1 SiF stretch 685 ± 50 gas PE Jadrny, Karlsson, et al., 1977

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 17000 ± 1000 gas Fehlner and Turner, 1974
Lloyd and Roberts, 1975
Jadrny, Karlsson, et al., 1977
Cooper, Shpinkova, et al., 2001

Additional references: Jacox, 1994, page 294; Jacox, 1998, page 305; Jacox, 2003, page 304; Hesser and Dressler, 1967; Murphy and Beauchamp, 1977; Mason and Tuckett, 1987, 2; Dixon and Tuckett, 1987

Notes

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.
tEnergy separation between the v = 0 levels of the two excited states involed in the transition.

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.

Fehlner and Turner, 1974
Fehlner, T.P.; Turner, D.W., The photoelectron spectrum of SiF2, Inorg. Chem., 1974, 13, 754. [all data]

Smith, Tuckett, et al., 1994
Smith, D.M.; Tuckett, R.P.; Yoxall, K.R.; Codling, K.; Hatherly, P.A.; Aarts, J.F.M.; Stankiewicz, M., Use of threshold electron and fluorescence coincidence techniques to probe the decay dynamics of the valence states of CF+4, SiF+4, SiCl+4, and GeCl+4, J. Chem. Phys., 1994, 101, 12, 10559, https://doi.org/10.1063/1.467873 . [all data]

Biehl, Boyle, et al., 1997
Biehl, H.; Boyle, K.J.; Seccombe, D.P.; Smith, D.M.; Tuckett, R.P.; Yoxall, K.R.; Baumgartel, H.; Jochims, H.W., Vacuum-UV fluorescence spectroscopy of SiF[sub 4] in the range 10--30 eV, J. Chem. Phys., 1997, 107, 3, 720, https://doi.org/10.1063/1.474437 . [all data]

Cooper, Shpinkova, et al., 2001
Cooper, L.; Shpinkova, L.G.; Holland, D.M.P.; Shaw, D.A., A study of the threshold photoelectron spectra and the photoionisation yield curves of the silicon tetrahalides, Chem. Phys., 2001, 270, 2, 363, https://doi.org/10.1016/S0301-0104(01)00391-3 . [all data]

Mason and Tuckett, 1987
Mason, S.M.; Tuckett, R.P., The, Mol. Phys., 1987, 60, 4, 771, https://doi.org/10.1080/00268978700100531 . [all data]

Suto, Wang, et al., 1987
Suto, M.; Wang, X.; Lee, L.C.; Chuang, T.J., Quantitative study on the photoexcitation process of SiF4 at 49--120 nm, J. Chem. Phys., 1987, 86, 3, 1152, https://doi.org/10.1063/1.452259 . [all data]

van Lonkhuyzen and Aarts, 1987
van Lonkhuyzen, H.; Aarts, J.F.M., Optical emission of GeF+4(D) produced by ion impact ionization of GeF4, Chem. Phys. Lett., 1987, 140, 4, 434, https://doi.org/10.1016/0009-2614(87)80761-3 . [all data]

Lambert, Mason, et al., 1988
Lambert, I.R.; Mason, S.M.; Tuckett, R.P.; Hopkirk, A., Decay pathways of excited electronic states of Group IV tetrafluoro and tetrachloro molecular ions studied with synchrotron radiation, J. Chem. Phys., 1988, 89, 5, 2683, https://doi.org/10.1063/1.455019 . [all data]

Lloyd and Roberts, 1975
Lloyd, D.R.; Roberts, P.J., Photoelectron spectra of halides. VII. Variable temperature He(I) and He(II) studies of CF4, SiF4, and GeF4, J. Electron Spectrosc. Relat. Phenom., 1975, 7, 325. [all data]

Jadrny, Karlsson, et al., 1977
Jadrny, R.; Karlsson, L.; Mattsson, L.; Siegbahn, K., The valence electron spectrum of SiF4, Chem. Phys. Lett., 1977, 49, 2, 203, https://doi.org/10.1016/0009-2614(77)80570-8 . [all data]

Aarts, 1986
Aarts, J.F.M., Ion and electron impact ionisation of SiF4 studied via uv emission, Chem. Phys., 1986, 101, 1, 105, https://doi.org/10.1016/0301-0104(86)87026-4 . [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, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [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]

Hesser and Dressler, 1967
Hesser, J.E.; Dressler, K., Radiative Lifetimes of Ultraviolet Emission Systems Excited in BF3, CF4, and SiF4, J. Chem. Phys., 1967, 47, 9, 3443, https://doi.org/10.1063/1.1712410 . [all data]

Murphy and Beauchamp, 1977
Murphy, M.K.; Beauchamp, J.L., Photoionization mass spectrometry of the fluoromethylsilanes (CH3)n F4-nSi (n = 1-4), J. Am. Chem. Soc., 1977, 99, 2085. [all data]

Mason and Tuckett, 1987, 2
Mason, S.M.; Tuckett, R.P., Computer simulation of the rotational structure of vibronic bands of CF, Mol. Phys., 1987, 62, 1, 175, https://doi.org/10.1080/00268978700102131 . [all data]

Dixon and Tuckett, 1987
Dixon, R.N.; Tuckett, R.P., The sign of the spin-orbit coupling constant in (t2)5 2t2 states of mx4+ ions, Chem. Phys. Lett., 1987, 140, 6, 553, https://doi.org/10.1016/0009-2614(87)80485-2 . [all data]

Notes

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