HC7H

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 = 19817.89 gas A-X 421 505 Ball, McCarthy, et al., 1999
Ball, McCarthy, et al., 2000
Ding, Schmidt, et al., 2003
Wehres, Ubachs, et al., 2010
To = 19812 ± 5 Ne A-X 410 506 Fulara, Freivogel, et al., 1995
To = 19770 ± 5 Ne A-X 410 506 Fulara, Freivogel, et al., 1995
Vib. 
sym. 		  No.   Approximate 
 type of mode 		  cm-1   Med.   Method   References
Σg+ 2 CC s-stretch 1954.5 ± 0.2 gas CR Ball, McCarthy, et al., 2000
Ding, Schmidt, et al., 2003
2 CC s-stretch 1961 ± 5 Ne AB Fulara, Freivogel, et al., 1995
4 638 gas MPI Ding, Schmidt, et al., 2003
4 647 ± 5 Ne AB Fulara, Freivogel, et al., 1995
Π CH bend 288 H gas MPI Ding, Schmidt, et al., 2003
CH bend 286 H T Ne AB Fulara, Freivogel, et al., 1995
279 H gas MPI Ding, Schmidt, et al., 2003

Additional references: Jacox, 1998, page 349; Jacox, 2003, page 370

Notes

H(1/2)(2ν)
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.

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]

Wehres, Ubachs, et al., 2010
Wehres, N.; Ubachs, D. Zhao.W.; Linnartz, H., Rotationally resolved -- spectrum of HC7H, Chem. Phys. Lett., 2010, 497, 1-3, 30, https://doi.org/10.1016/j.cplett.2010.08.006 . [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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