Carbon dioxide anion
- Formula: CO2-
- Molecular weight: 44.0100
- CAS Registry Number: 14485-07-5
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Gas phase thermochemistry data
Go To: Top, Vibrational and/or electronic energy levels, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°gas,1 bar | 57.517 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1966 |
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: ?
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
Txxd = 11300 | T | gas | Coe, 1986 | ||||
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 1 | Sym. stretch | 1253.8 | w | Ne | IR | Thompson and Jacox, 1999 |
2 | Bend | 714.1 | w | Ne | IR | Thompson and Jacox, 1999 | |
b2 | 3 | Asym. stretch | 1658.3 | vs | Ne | IR | Jacox and Thompson, 1989 Godbout, Halasinski, et al., 1996 Zhou and Andrews, 1999 Thompson and Jacox, 1999 |
3 | Asym. stretch | 1657.0 | Ar | IR | Zhou and Andrews, 1999, 2 | ||
Additional references: Jacox, 1994, page 90; Jacox, 1998, page 193; Jacox, 2003, page 134
Notes
w | Weak |
vs | Very strong |
T | Tentative assignment or approximate value |
xx | Energy separation between the band maxima of both the excited state and the ground state of a molecular cation, derived from a photoelectron spectrum. |
d | Photodissociation threshold |
References
Go To: Top, Gas phase thermochemistry data, 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.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Coe, 1986
Coe, J.V.,
Ph.D. thesis, 1986, Johns Hopkins University, Baltimore, MD. [all data]
Thompson and Jacox, 1999
Thompson, W.E.; Jacox, M.E.,
The vibrational spectra of CO[sub 2][sup +], (CO[sub 2])[sub 2][sup +], CO[sub 2][sup -], and (CO[sub 2])[sub 2][sup -] trapped in solid neon,
J. Chem. Phys., 1999, 111, 10, 4487, https://doi.org/10.1063/1.479212
. [all data]
Jacox and Thompson, 1989
Jacox, M.E.; Thompson, W.E.,
The vibrational spectra of molecular ions isolated in solid neon. I. CO+2 and CO-2,
J. Chem. Phys., 1989, 91, 3, 1410, https://doi.org/10.1063/1.457100
. [all data]
Godbout, Halasinski, et al., 1996
Godbout, J.T.; Halasinski, T.M.; Leroi, G.E.; Allison, J.,
Matrix Isolation of Mass-Selected Cations: Are Counterions Present and How Are They Formed?,
J. Phys. Chem., 1996, 100, 8, 2892, https://doi.org/10.1021/jp952482k
. [all data]
Zhou and Andrews, 1999
Zhou, M.; Andrews, L.,
Infrared spectra of the C[sub 2]O[sub 4][sup +] cation and C[sub 2]O[sub 4][sup -] anion isolated in solid neon,
J. Chem. Phys., 1999, 110, 14, 6820, https://doi.org/10.1063/1.478586
. [all data]
Zhou and Andrews, 1999, 2
Zhou, M.; Andrews, L.,
Infrared spectra of the CO[sub 2][sup -] and C[sub 2]O[sub 4][sup -] anions isolated in solid argon,
J. Chem. Phys., 1999, 110, 5, 2414, https://doi.org/10.1063/1.477947
. [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]
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
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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