MgCCH

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 = 22809.46 gas A-X 415 440 Corlett, Little, et al., 1996
Corlett, Beardah, et al., 1997
Tokaryk, Adam, et al., 2005
Ding, Apetrei, et al., 2008
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σ+ 3 MgC stretch 550.53 gas LF Corlett, Little, et al., 1996
Tokaryk, Adam, et al., 2005
Ding, Apetrei, et al., 2008

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σ+ 2 CC stretch 1984.2 Ar IR Thompson and Andrews, 1996
3 MgC stretch 496 ± 2 gas LF Corlett, Beardah, et al., 1997
3 MgC stretch 491.8 Ar IR Thompson and Andrews, 1996
Π 4 HCC bend 660.8 Ar IR Thompson and Andrews, 1996
5 MgCC bend 143 ± 2 gas LF Corlett, Beardah, et al., 1997

Additional references: Jacox, 1998, page 231; Jacox, 2003, page 180; Brewster, Apponi, et al., 1999

Notes

oEnergy separation between the v = 0 levels of the excited and electronic ground states.

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.

Corlett, Little, et al., 1996
Corlett, G.K.; Little, A.M.; Ellis, A.M., LIF spectroscopy of the MgCCH free radical, Chem. Phys. Lett., 1996, 249, 1-2, 53, https://doi.org/10.1016/0009-2614(95)01364-4 . [all data]

Corlett, Beardah, et al., 1997
Corlett, G.K.; Beardah, M.S.; Ellis, A.M., A Dispersed Fluorescence Investigation of the Low Frequency Vibrations of MgCCH(X2Σ;pl), J. Mol. Spectrosc., 1997, 185, 1, 202, https://doi.org/10.1006/jmsp.1997.7412 . [all data]

Tokaryk, Adam, et al., 2005
Tokaryk, D.W.; Adam, A.G.; Hopkins, W.S., High-resolution laser spectroscopy of the transition of MgCCH, J. Mol. Spectrosc., 2005, 230, 1, 54, https://doi.org/10.1016/j.jms.2004.10.008 . [all data]

Ding, Apetrei, et al., 2008
Ding, H.; Apetrei, C.; Chacaga, L.; Maier, J.P., Electronic Spectra of MgC, Astrophys. J., 2008, 677, 1, 348, https://doi.org/10.1086/524375 . [all data]

Thompson and Andrews, 1996
Thompson, C.A.; Andrews, L., Reactions of Laser-Ablated Be and Mg Atoms with C, J. Am. Chem. Soc., 1996, 118, 42, 10242, https://doi.org/10.1021/ja9616847 . [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]

Brewster, Apponi, et al., 1999
Brewster, M.A.; Apponi, A.J.; Xin, J.; Ziurys, L.M., Millimeter-wave spectroscopy of vibrationally-excited NaCCH and MgCCH : the v5 bending mode, Chem. Phys. Lett., 1999, 310, 5-6, 411, https://doi.org/10.1016/S0009-2614(99)00816-7 . [all data]

Notes

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