SiBr4+

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
Txx = 52550 ± 20 gas Green, Green, et al., 1970
Cooper, Shpinkova, et al., 2001

State:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 25450 ± 20 gas Green, Green, et al., 1970
Cooper, Shpinkova, et al., 2001

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 23000 gas C-X Creasey, Lambert, et al., 1990

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 18200 gas C-A Creasey, Lambert, et al., 1990

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 11560 ± 80 gas Green, Green, et al., 1970
Cooper, Shpinkova, et al., 2001

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Txx = 5740 ± 20 gas Green, Green, et al., 1970
Cooper, Shpinkova, et al., 2001

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
f2 2 SiBr stretch 444 T gas TPE Cooper, Shpinkova, et al., 2001

Additional references: Jacox, 1994, page 296; Jacox, 2003, page 305

Notes

TTentative assignment or approximate value
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.

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Green, Green, et al., 1970
Green, J.C.; Green, M.L.; Joachim, P.J.; Orchard, A.F.; Turner, D.W., A Study of the Bonding in the Group IV Tetrahalides by Photoelectron Spectroscopy, Phil. Trans. Roy. Soc. (London) A268, 1970, 268, 1184, 111, https://doi.org/10.1098/rsta.1970.0065 . [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]

Creasey, Lambert, et al., 1990
Creasey, J.C.; Lambert, I.R.; Tuckett, R.P.; Hopkirk, A., J. Chem. Soc., 1990, Faraday Trans. 86, 2021. [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]

Notes

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