C9H2+

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 = 37106 ± 15 Ne E-X 260 270 Fulara, Nagy, et al., 2010
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 4 1267 ± 20 Ne AB Fulara, Nagy, et al., 2010
5 403 ± 20 Ne AB Fulara, Nagy, et al., 2010

State:   D
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
30912 ± 10 Ne D-X 295 324 Fulara, Nagy, et al., 2010
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 3 Skel. stretch 1940 ± 12 Ne AB Fulara, Nagy, et al., 2010
4 1108 ± 12 Ne AB Fulara, Nagy, et al., 2010
5 426 ± 12 Ne AB Fulara, Nagy, et al., 2010

State:   C
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 18900 ± 4 Ne C-X 399 530 Fulara, Nagy, et al., 2010
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 2 Skel. stretch 2047 ± 5 Ne AB Fulara, Nagy, et al., 2010
3 1903 ± 5 Ne AB Fulara, Nagy, et al., 2010
5 435 ± 5 Ne AB Fulara, Nagy, et al., 2010

State:   B
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 18067 ± 3 Ne B-X 539 554 Fulara, Nagy, et al., 2010
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 5 476 ± 5 Ne AB Fulara, Nagy, et al., 2010

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 14391 ± 3 Ne A-X 545 695 Freivogel, Fulara, et al., 1994
Fulara, Nagy, et al., 2010
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ Skel. stretch 2005 ± 5 Ne AB Freivogel, Fulara, et al., 1994

Additional references: Jacox, 1998, page 353

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, Nagy, et al., 2010
Fulara, J.; Nagy, A.; Garkusha, I.; Maier, J.P., Higher energy electronic transitions of HC[sub 2n+1]H[sup +] (n=2--7) and HC[sub 2n+1]H (n=4--7) in neon matrices, J. Chem. Phys., 2010, 133, 2, 024304, https://doi.org/10.1063/1.3455208 . [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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