HC9H

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 = 41494 ± 18 Ne Fulara, Nagy, et al., 2010

State:   A
 Energy 
 (cm-1) 		  Med.   Transition   λmin 
 (nm) 		  λmax 
 (nm) 		  References
To = 17184.6 gas A-X 473 582 Ball, McCarthy, et al., 1999
Ball, McCarthy, et al., 2000
Ding, Schmidt, et al., 2003
To = 17218 ± 5 Ne A-X 433 583 Fulara, Freivogel, et al., 1995
To = 17160 ± 5 Ne A-X 433 583 Fulara, Freivogel, et al., 1995
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 3 CC s-stretch 1976.0 ± 0.2 gas CR MPI Ball, McCarthy, et al., 1999
Ball, McCarthy, et al., 2000
Ding, Schmidt, et al., 2003
3 CC s-stretch 1969 ± 5 Ne AB Fulara, Freivogel, et al., 1995
770 ± 5 Ne AB Fulara, Freivogel, et al., 1995

Additional references: Jacox, 1998, page 353; Jacox, 2003, page 376

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]

Ball, McCarthy, et al., 1999
Ball, C.D.; McCarthy, M.C.; Thaddeus, P., Laser Spectroscopy of the Carbon Chains HC[TINF]7[/TINF]H and HC[TINF]9[/TINF]H, Astrophys. J., 1999, 523, 1, L89, https://doi.org/10.1086/312255 . [all data]

Ball, McCarthy, et al., 2000
Ball, C.D.; McCarthy, M.C.; Thaddeus, P., Cavity ringdown spectroscopy of the linear carbon chains HC[sub 7]H, HC[sub 9]H, HC[sub 11]H, and HC[sub 13]H, J. Chem. Phys., 2000, 112, 23, 10149, https://doi.org/10.1063/1.481655 . [all data]

Ding, Schmidt, et al., 2003
Ding, H.; Schmidt, T.W.; Pino, T.; Boguslavskiy, A.E.; Guthe, F.; Maier, J.P., Gas phase electronic spectra of the linear carbon chains HC[sub 2n+1]H (n=3--6,9), J. Chem. Phys., 2003, 119, 2, 814, https://doi.org/10.1063/1.1578476 . [all data]

Fulara, Freivogel, et al., 1995
Fulara, J.; Freivogel, P.; Forney, D.; Maier, J.P., Electronic absorption spectra of linear carbon chains in neon matrices. III. HC2n+1H, J. Chem. Phys., 1995, 103, 20, 8805, https://doi.org/10.1063/1.470069 . [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]

Notes

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