CH3(CC)2CH3+
- Formula: C6H6+
- Molecular weight: 78.1113
- CAS Registry Number: 61369-13-9
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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 = 20556 | gas | A-X | 425 | 625 | Allan, Maier, et al., 1978 | ||
Miller, Bondybey, et al., 1979 | |||||||
Maier, Marthaler, et al., 1980 | |||||||
Maier and Misev, 1980 | |||||||
Klapstein, Kuhn, et al., 1983 | |||||||
Dzhonson and Maier, 2006 | |||||||
To = 20499 | Ne | A-X | 425 | 555 | Bondybey, English, et al., 1979 | ||
To = 20190 | T | Ar | A-X | Bondybey, English, et al., 1979 | |||
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1g | 2 | CC stretch | 2247 | gas | EF | Allan, Maier, et al., 1978 Maier, Marthaler, et al., 1980 Klapstein, Kuhn, et al., 1983 | |
2 | CC stretch | 2246 | Ne | LF | Bondybey, English, et al., 1979 | ||
4 | C-C stretch | 1323 | gas | EF | Allan, Maier, et al., 1978 Klapstein, Kuhn, et al., 1983 | ||
4 | C-C stretch | 1322 | Ne | LF | Bondybey, English, et al., 1979 | ||
5 | C-C stretch | 555 | gas | EF LF | Allan, Maier, et al., 1978 Miller, Bondybey, et al., 1979 Maier, Marthaler, et al., 1980 Klapstein, Kuhn, et al., 1983 | ||
5 | C-C stretch | 558 | Ne | LF | Bondybey, English, et al., 1979 | ||
eu | 14 | Skel. deform. | 327 | H | gas | EF | Klapstein, Kuhn, et al., 1983 |
eg | 20 | Skel. deform. | 237 | H | gas | EF | Klapstein, Kuhn, et al., 1983 |
Additional references: Jacox, 1994, page 390; Forster, Maier, et al., 1981
Notes
H | (1/2)(2ν) |
T | Tentative assignment or approximate value |
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.
Allan, Maier, et al., 1978
Allan, M.; Maier, J.P.; Marthaler, O.; Kloster-Jensen, E.,
Emission spectra of two C6H6+ cations in the gas phase: competition of the radiative, Ã(π-1) → X(π-1), and fragmentation decay of the Ã(π-1) excited state of 2,4- and 1,3-hexadiyne radical cations,
Chem. Phys., 1978, 29, 3, 331, https://doi.org/10.1016/0301-0104(78)85083-6
. [all data]
Miller, Bondybey, et al., 1979
Miller, T.A.; Bondybey, V.E.; Zegarski, B.R.,
Laser induced fluorescence spectrum of gaseous C6H+6,
J. Chem. Phys., 1979, 70, 11, 4982, https://doi.org/10.1063/1.437338
. [all data]
Maier, Marthaler, et al., 1980
Maier, J.P.; Marthaler, O.; Kloster-Jensen, E.,
Emission spectra of alkyl substituted diacetylene radical cations: CH3--C≡C--C≡C--R+ with R=H, D, CH3, and CD3; CD3--C≡C--C≡C--R+ with R=H, D, CD3 and C2H5--C≡C--C≡C--R+ with R=H and C2H5. Competition of the radiative A (π-1) → X (π-1) and fragmentation decay of their A (π-1) states,
J. Chem. Phys., 1980, 72, 1, 701, https://doi.org/10.1063/1.438905
. [all data]
Maier and Misev, 1980
Maier, J.P.; Misev, L.,
Laser induced excitation spectra of the cations of 1,3-pentadiynes, R«58872»(C«58876»C)«58872»2H+; R «58875» CH3, CD3: (2E ← 2E) and of 2,4-hexadiynes, R«58872» (C«58876»C)«58872»2R+; R «58875» CH3, CD3; (2Eu ← 2Eg) in the gaseous phase,
Chem. Phys., 1980, 51, 3, 311, https://doi.org/10.1016/0301-0104(80)80105-4
. [all data]
Klapstein, Kuhn, et al., 1983
Klapstein, D.; Kuhn, R.; Leutwyler, S.; Maier, J.P.,
Emission spectra of supersonically cooled dimethyldiacetylene cations,
Chem. Phys., 1983, 78, 2, 167, https://doi.org/10.1016/0301-0104(83)85105-2
. [all data]
Dzhonson and Maier, 2006
Dzhonson, A.; Maier, J.P.,
Electronic absorption spectra of cold organic cations: 2,4-Hexadiyne,
Int. J. Mass Spectrom., 2006, 255-256, 139, https://doi.org/10.1016/j.ijms.2005.12.019
. [all data]
Bondybey, English, et al., 1979
Bondybey, V.E.; English, J.H.; Miller, T.A.,
Dimethyl-diacetylene radical cation and its fluorescence spectra in rare gas matrices,
J. Chem. Phys., 1979, 70, 4, 1765, https://doi.org/10.1063/1.437695
. [all data]
Jacox, 1994
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]
Forster, Maier, et al., 1981
Forster, P.; Maier, J.P.; Thommen, F.,
Radiative and non-radiative decay rates of alkyl substituted diacetylene cations at selected energies within their 2A states determined via photoelectron-photoion coincidence measurements,
Chem. Phys., 1981, 59, 85. [all data]
Notes
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