1,3,5,7-octatetraynyl
- Formula: C8H
- Molecular weight: 97.0935
- IUPAC Standard InChI: InChI=1S/C8H/c1-3-5-7-8-6-4-2/h1H
- IUPAC Standard InChIKey: GTEOCQSGHJLKQX-UHFFFAOYSA-N
- CAS Registry Number: 88053-51-4
- Chemical structure:
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Vibrational and/or electronic energy levels
Go To: Top, References, Notes
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: 2Π3/2
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| To = 15973.5 ± 0.2 | gas | 2Π-X | 554 | 626 | Linnartz, Motylewski, et al., 1998 | ||
| Birza, Khoroshev, et al., 2003 | |||||||
| To = 15848 ± 5 | Ne | 2Π-X | 515 | 631 | Freivogel, Fulara, et al., 1995 | ||
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| Σ+ | 3 | 2077.6 ± 0.3 | gas | CR | Linnartz, Motylewski, et al., 1998 | ||
| 3 | 2080 ± 5 | Ne | AB | Freivogel, Fulara, et al., 1995 | |||
| 5 | 1591.2 ± 0.3 | gas | CR | Linnartz, Motylewski, et al., 1998 | |||
| 5 | 1607 ± 5 | Ne | AB | Freivogel, Fulara, et al., 1995 | |||
| 6 | 783 ± 5 | Ne | AB | Freivogel, Fulara, et al., 1995 | |||
State: A
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| To = 2113 ± 8 | gas | Taylor, Xu, et al., 1998 | |||||
| Garand, Yacovitch, et al., 2010 | |||||||
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| Σ+ | CC stretch | 2016 ± 70 | gas | PE | Taylor, Xu, et al., 1998 | ||
| 5 | 1697 ± 8 | gas | PE | Garand, Yacovitch, et al., 2010 | |||
State: X
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| CC stretch | 1661 ± 50 | gas | PE | Taylor, Xu, et al., 1998 | |||
Additional references: Jacox, 1998, page 351; Jacox, 2003, page 373; McCarthy, Travers, et al., 1996; McCarthy, Travers, et al., 1997; McCarthy, Chen, et al., 1999
Notes
| o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
References
Go To: Top, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Linnartz, Motylewski, et al., 1998
Linnartz, H.; Motylewski, T.; Maier, J.P.,
The [sup 2]Π←X [sup 2]Π electronic spectra of C[sub 8]H and C[sub 10]H in the gas phase,
J. Chem. Phys., 1998, 109, 10, 3819, https://doi.org/10.1063/1.476981
. [all data]
Birza, Khoroshev, et al., 2003
Birza, P.; Khoroshev, D.; Chirokolava, A.; Motylewski, T.; Maier, J.P.,
Lifetime broadening in the gas phase electronic spectrum of C8H,
Chem. Phys. Lett., 2003, 382, 3-4, 245, https://doi.org/10.1016/j.cplett.2003.10.092
. [all data]
Freivogel, Fulara, et al., 1995
Freivogel, P.; Fulara, J.; Jakobi, M.; Forney, D.; Maier, J.P.,
Electronic absorption spectra of linear carbon chains in neon matrices. II. C-2n, C2n, and C2nH,
J. Chem. Phys., 1995, 103, 1, 54, https://doi.org/10.1063/1.469621
. [all data]
Taylor, Xu, et al., 1998
Taylor, T.R.; Xu, C.; Neumark, D.M.,
Photoelectron spectra of the C[sub 2n]H[sup -] (n=1--4) and C[sub 2n]D[sup -] (n=1--3) anions,
J. Chem. Phys., 1998, 108, 24, 10018, https://doi.org/10.1063/1.476462
. [all data]
Garand, Yacovitch, et al., 2010
Garand, E.; Yacovitch, T.I.; Zhou, J.; Sheehan, S.M.; Neumark, D.M.,
Slow photoelectron velocity-map imaging of the CnH- (n = 5--9) anions,
Chem. Sci., 2010, 2, 2, 192, https://doi.org/10.1039/c0sc00164c
. [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]
McCarthy, Travers, et al., 1996
McCarthy, M.C.; Travers, M.J.; Kovacs, A.; Gottlieb, C.A.; Thaddeus, P.,
Astron. Astrophys., 1996, 309, L31. [all data]
McCarthy, Travers, et al., 1997
McCarthy, M.C.; Travers, M.J.; Kovacs, A.; Gottlieb, C.A.; Thaddeus, P.,
Eight New Carbon Chain Molecules,
Astrophys. J. Suppl., 1997, 113, 1, 105, https://doi.org/10.1086/313050
. [all data]
McCarthy, Chen, et al., 1999
McCarthy, M.C.; Chen, W.; Apponi, A.J.; Gottlieb, C.A.; Thaddeus, P.,
Hyperfine Structure of the C,
Astrophys. J., 1999, 520, 1, 158, https://doi.org/10.1086/307434
. [all data]
Notes
Go To: Top, Vibrational and/or electronic energy levels, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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