HCSi

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:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 11766.72 gas A-X 605 1300 Cireasa, Cossart, et al., 1998
Smith, Li, et al., 1999
Smith, Li, et al., 2000
Cireasa, Cossart, et al., 2000
Smith, Li, et al., 2001
Smith, Clouthier, et al., 2001
Fujitake, Echizenya, et al., 2004
Ohashi and Fujitake, 2004
To = 11749 ± 3 Ne A-X 656 852 Grutter, Freivogel, et al., 1997
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Π 2 Bend 715 gas LF Smith, Li, et al., 1999
Smith, Li, et al., 2000
Σ+ 3 CSi stretch 1167.7 gas AB EM Cireasa, Cossart, et al., 1998
Smith, Li, et al., 2000
Cireasa, Cossart, et al., 2000
3 CSi stretch 1170 ± 5 Ne AB Grutter, Freivogel, et al., 1997

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Π 2 Bend (w) 508.0 ± 0.4 gas LF DL Smith, Li, et al., 2001
Fujitake, Echizenya, et al., 2004
2 Bend (κ 2S) 606.9 gas LF Smith, Li, et al., 2001
2 Bend (2D3/2) 576.0 ± 0.2 gas LF Smith, Li, et al., 2001
2 Bend (2D5/2) 505.4 ± 0.2 gas LF Smith, Li, et al., 2001
2 Bend (μ 2S) 442.7 ± 0.2 gas LF Smith, Li, et al., 2001
Σ+ 3 CSi stretch 1014.29 gas AB EM Cireasa, Cossart, et al., 1998
Cireasa, Cossart, et al., 2000
3 CSi stretch 1010.4 Ar IR Han, Rittby, et al., 1998

Additional references: Jacox, 2003, page 30

Notes

oEnergy 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.

Cireasa, Cossart, et al., 1998
Cireasa, R.; Cossart, D.; Vervloet, M., Eur. Phys. J. D, 1998, 2, 199. [all data]

Smith, Li, et al., 1999
Smith, T.C.; Li, H.; Clouthier, D.J., Spectroscopic Characterization of Silicon and Germanium Methylidyne: Fundamental Astrophysical and Organometallic Building Blocks, J. Am. Chem. Soc., 1999, 121, 25, 6068, https://doi.org/10.1021/ja990713l . [all data]

Smith, Li, et al., 2000
Smith, T.C.; Li, H.; Clouthier, D.J.; Kingston, C.T.; Merer, A.J., The electronic spectrum of silicon methylidyne (SiCH), a molecule with a silicon--carbon triple bond in the excited state, J. Chem. Phys., 2000, 112, 8, 3662, https://doi.org/10.1063/1.480518 . [all data]

Cireasa, Cossart, et al., 2000
Cireasa, R.; Cossart, D.; Vervloet, M.; Robbe, J.M., Fourier transform emission spectrum of the HCSi radical, A [sup 2]Σ[sup +]--X [sup 2]Π[sub i] transition, J. Chem. Phys., 2000, 112, 24, 10806, https://doi.org/10.1063/1.481724 . [all data]

Smith, Li, et al., 2001
Smith, T.C.; Li, H.; Hostutler, D.A.; Clouthier, D.J.; Merer, A.J., Orbital angular momentum (Renner--Teller) effects in the [sup 2]Π[sub i] ground state of silicon methylidyne (SiCH), J. Chem. Phys., 2001, 114, 2, 725, https://doi.org/10.1063/1.1331316 . [all data]

Smith, Clouthier, et al., 2001
Smith, T.C.; Clouthier, D.J.; Steimle, T.C., Hyperfine structure and the Stark effect in the electronic spectrum of the SiCH radical with implications for microwave spectroscopy and radioastronomy, J. Chem. Phys., 2001, 115, 2, 817, https://doi.org/10.1063/1.1378818 . [all data]

Fujitake, Echizenya, et al., 2004
Fujitake, M.; Echizenya, R.; Shirai, T.; Kurita, S.; Ohashi, N., Near-infrared diode laser spectroscopy of the HCSi radical, J. Mol. Spectrosc., 2004, 223, 2, 113, https://doi.org/10.1016/j.jms.2003.10.006 . [all data]

Ohashi and Fujitake, 2004
Ohashi, N.; Fujitake, M., Spectrochim. Acta, 2004, 60A, 3277. [all data]

Grutter, Freivogel, et al., 1997
Grutter, M.; Freivogel, P.; Maier, J.P., Electronic Absorption Spectra of SiC, J. Phys. Chem. A, 1997, 101, 3, 275, https://doi.org/10.1021/jp962882n . [all data]

Han, Rittby, et al., 1998
Han, D.S.; Rittby, C.M.L.; Graham, W.R.M., Fourier transform infrared observation of the ν[sub 1](σ) mode of linear SiCH in Ar at 10 K, J. Chem. Phys., 1998, 108, 9, 3504, https://doi.org/10.1063/1.475748 . [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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