HCCH+2

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:   b
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 10800 T gas Furuhashi, Kinugawa, et al., 2001
Kinugawa, Lablanquie, et al., 2004
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 2 CC stretch 1210 ± 100 gas PE Kinugawa, Lablanquie, et al., 2004

State:   a
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 5970 T gas Furuhashi, Kinugawa, et al., 2001
Kinugawa, Lablanquie, et al., 2004
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 2 CC stretch 1410 ± 100 gas DCT PE Furuhashi, Kinugawa, et al., 2001
Kinugawa, Lablanquie, et al., 2004

State:   X

Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 2 CC stretch 1530 ± 100 gas PE Kinugawa, Lablanquie, et al., 2004
Π Bend 660 ± 40 gas TPE Kinugawa, Lablanquie, et al., 2004

Notes

TTentative assignment or approximate value
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.

Furuhashi, Kinugawa, et al., 2001
Furuhashi, O.; Kinugawa, T.; Masuda, S.; Yamada, C.; Ohtani, S., Double charge transfer spectroscopy of acetylene dication C2H22+ at vibrational resolution, Chem. Phys. Lett., 2001, 342, 5-6, 625, https://doi.org/10.1016/S0009-2614(01)00636-4 . [all data]

Kinugawa, Lablanquie, et al., 2004
Kinugawa, T.; Lablanquie, P.; Penent, F.; Palaudoux, J.; Eland, J.H.D., C2H22+: An experimental and theoretical study of the spectrum of the ethyne dication, J. Electron Spectrosc. Relat. Phenom., 2004, 141, 2-3, 143, https://doi.org/10.1016/j.elspec.2004.03.010 . [all data]

Notes

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