Dicarbon monoxide
- Formula: C2O
- Molecular weight: 40.0208
- IUPAC Standard InChI: InChI=1S/C2O/c1-2-3
- IUPAC Standard InChIKey: VILAVOFMIJHSJA-UHFFFAOYSA-N
- CAS Registry Number: 12071-23-7
- Chemical structure:
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Gas phase ion energetics data
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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: John E. Bartmess
View reactions leading to C2O+ (ion structure unspecified)
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 2.310 ± 0.010 | LPES | Goebbert, Khuseynov, et al., 2011 | ground state neutral is triplet; singlet state 0.64 eV up |
| 2.31070 ± 0.00060 | N/A | Garand, Yacovitch, et al., 2008 | Singlet state 0.654 eV up |
| 2.289 ± 0.018 | LPES | Zengin, Persson, et al., 1996 | Imply that Oakes, Jones, et al., 1983 missed EA due to too low energy photons and wrong polarization |
| 1.848 ± 0.027 | LPES | Oakes, Jones, et al., 1983 | see Zengin, Persson, et al., 1996 for reinterpretation |
References
Go To: Top, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Goebbert, Khuseynov, et al., 2011
Goebbert, D.J.; Khuseynov, D.; Sanov, A.,
O- + Acetaldehyde Reaction Products: Search for Singlet Formylmethylene, a Wolff Rearrangement intermediate,
J. Phys. Chem. A, 2011, 115, 15, 3208-3217, https://doi.org/10.1021/jp112331y
. [all data]
Garand, Yacovitch, et al., 2008
Garand, E.; Yacovitch, T.I.; Neumark, D.M.,
Slow photoelectron imaging spectroscopy of CCO- and CCS-,
J. Chem. Phys., 2008, 129, 7, 074312, https://doi.org/10.1063/1.2969819
. [all data]
Zengin, Persson, et al., 1996
Zengin, V.; Persson, B.J.; Strong, K.M.; Continetti, R.E.,
Study of the Low-lying Electronic States of CCO by Photoelectron Spectroscopy of CCO- and ab initio calculations.,
J. Chem. Phys., 1996, 105, 22, 9740, https://doi.org/10.1063/1.473000
. [all data]
Oakes, Jones, et al., 1983
Oakes, J.M.; Jones, M.E.; Bierbaum, V.M.; Ellison, G.B.,
Photoelectron spectroscopy of CCO- and HCCO-,
J. Phys. Chem., 1983, 87, 4810. [all data]
Notes
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- Symbols used in this document:
EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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