C12H2+

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:   E
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 32382 ± 20 Ne E-X 290 309 Fulara, Grutter, et al., 2007

State:   D
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 18664 ± 3 gas Rice, Rudnev, et al., 2010
To = 18570 ± 7 Ne Fulara, Grutter, et al., 2007

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 13708 ± 5 Ne B-X 559 730 Fulara, Grutter, et al., 2007

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 10814 gas Dzhonson, Jochnowitz, et al., 2007
To = 10703 ± 5 Ne A-X 777 935 Freivogel, Fulara, et al., 1994
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ CC stretch 2154 ± 5 Ne AB Freivogel, Fulara, et al., 1994
C-C stretch 322 ± 5 Ne AB Freivogel, Fulara, et al., 1994

Additional references: Jacox, 1998, page 355

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.

Fulara, Grutter, et al., 2007
Fulara, J.; Grutter, M.; Maier, J.P., Higher Excited Electronic Transitions of Polyacetylene Cations HC, J. Phys. Chem. A, 2007, 111, 46, 11831, https://doi.org/10.1021/jp075807t . [all data]

Rice, Rudnev, et al., 2010
Rice, C.A.; Rudnev, V.; Dietsche, R.; Maier, J.P., GAS-PHASE ELECTRONIC SPECTRA OF POLYACETYLENE CATIONS: RELEVANCE OF HIGHER EXCITED STATES, Astronom. J., 2010, 140, 1, 203, https://doi.org/10.1088/0004-6256/140/1/203 . [all data]

Dzhonson, Jochnowitz, et al., 2007
Dzhonson, A.; Jochnowitz, E.B.; Maier, J.P., Electronic Gas-Phase Spectra of Larger Polyacetylene Cations, J. Phys. Chem. A, 2007, 111, 10, 1887, https://doi.org/10.1021/jp067439j . [all data]

Freivogel, Fulara, et al., 1994
Freivogel, P.; Fulara, J.; Lessen, D.; Forney, D.; Maier, J.P., Absorption spectra of conjugated hydrocarbon cation chains in neon matrices, Chem. Phys., 1994, 189, 2, 335, https://doi.org/10.1016/0301-0104(94)00243-6 . [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]

Notes

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