FeCl2

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:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 47378 gas DeKock and Gruen, 1966

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 47600 Ar DeKock and Gruen, 1968

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 44100 Ar DeKock and Gruen, 1968

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 41480 gas DeKock and Gruen, 1966

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 41600 Ar DeKock and Gruen, 1968
Jacox and Milligan, 1969

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 39800 Ar DeKock and Gruen, 1968

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 37500 Ar DeKock and Gruen, 1968

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 36350 gas DeKock and Gruen, 1966

State:   UV1
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 34696.69 gas 276 290 Ashworth, Hodges, et al., 2002
Hodges, Ashworth, et al., 2006
Hodges, Brown, et al., 2006
Hodges, Brown, et al., 2006, 2
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 1 Sym. stretch 200.36 ± 0.18 gas LF Hodges, Brown, et al., 2006
Hodges, Brown, et al., 2006, 2
Σu+ 3 Asym. stretch 429.5 ± 0.2 gas LF Hodges, Brown, et al., 2006
Hodges, Brown, et al., 2006, 2

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 19500 w gas DeKock and Gruen, 1966

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
Tx = 7140 gas DeKock and Gruen, 1966

State:   ?
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 4607 gas DeKock and Gruen, 1966

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 1 Sym. stretch 352.34 ± 0.12 gas LF Hodges, Ashworth, et al., 2006
Hodges, Brown, et al., 2006
Hodges, Brown, et al., 2006, 2
Πu 2 Bend 88 Ar IR Thompson and Carlson, 1968
Σu+ 3 Asym. stretch 504.8 ± 0.2 gas IR LF Leroi, James, et al., 1962
Hodges, Ashworth, et al., 2006
Hodges, Brown, et al., 2006, 2
3 Asym. stretch 493.2 Ar IR Thompson and Carlson, 1968
Jacox and Milligan, 1969
Hastie, Hauge, et al., 1971
Green, McDermott, et al., 1983

Notes

wWeak
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.

DeKock and Gruen, 1966
DeKock, C.W.; Gruen, D.M., Electronic Absorption Spectra of the Gaseous 3d Transition-Metal Dichlorides, J. Chem. Phys., 1966, 44, 12, 4387, https://doi.org/10.1063/1.1726648 . [all data]

DeKock and Gruen, 1968
DeKock, C.W.; Gruen, D.M., Charge-Transfer Spectra of Matrix-Isolated 3d Transition-Metal Dichlorides, J. Chem. Phys., 1968, 49, 10, 4521, https://doi.org/10.1063/1.1669906 . [all data]

Jacox and Milligan, 1969
Jacox, M.E.; Milligan, D.E., Matrix-Isolation Study of the Infrared and Ultraviolet Spectra of Several First-Series Transition-Metal Dichlorides, J. Chem. Phys., 1969, 51, 9, 4143, https://doi.org/10.1063/1.1672639 . [all data]

Ashworth, Hodges, et al., 2002
Ashworth, S.H.; Hodges, P.J.; Brown, J.M., The detection of the electronic spectrum of FeCl2 in the gas phase, Phys. Chem. Chem. Phys., 2002, 4, 24, 5923, https://doi.org/10.1039/b209523h . [all data]

Hodges, Ashworth, et al., 2006
Hodges, P.J.; Ashworth, S.H.; Beattie, I.R.; Brown, J.M., Dispersed fluorescence spectroscopy of jet-cooled FeCl2: A determination of ground-state vibrational parameters, Chem. Phys. Lett., 2006, 422, 1-3, 160, https://doi.org/10.1016/j.cplett.2006.02.044 . [all data]

Hodges, Brown, et al., 2006
Hodges, P.J.; Brown, J.M.; Ashworth, S.H., Rotational and vibrational structure in the 288nm band system of the FeCl2 radical, J. Mol. Spectrosc., 2006, 237, 2, 205, https://doi.org/10.1016/j.jms.2006.03.014 . [all data]

Hodges, Brown, et al., 2006, 2
Hodges, P.J.; Brown, J.M.; Ashworth, S.H., The observation of hot bands in the 288nm system of the FeCl2 radical, J. Mol. Spectrosc., 2006, 240, 2, 265, https://doi.org/10.1016/j.jms.2006.10.006 . [all data]

Thompson and Carlson, 1968
Thompson, K.R.; Carlson, K.D., Bending Frequencies and New Dimer Modes in the Far-Infrared Spectra of Transition-Metal Dihalides, J. Chem. Phys., 1968, 49, 10, 4379, https://doi.org/10.1063/1.1669885 . [all data]

Leroi, James, et al., 1962
Leroi, G.E.; James, T.C.; Hougen, J.T.; Klemperer, W., Infrared Spectra of Gaseous Transition-Metal Dihalides, J. Chem. Phys., 1962, 36, 11, 2879, https://doi.org/10.1063/1.1732394 . [all data]

Hastie, Hauge, et al., 1971
Hastie, J.W.; Hauge, R.H.; Margrave, J.L., High Temp. Sci., 1971, 3, 257. [all data]

Green, McDermott, et al., 1983
Green, D.W.; McDermott, D.P.; Bergman, A., Infrared spectra of the matrix-isolated chlorides of iron, cobalt, and nickel, J. Mol. Spectrosc., 1983, 98, 1, 111, https://doi.org/10.1016/0022-2852(83)90206-0 . [all data]

Notes

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