Dichlorine monoxide
- Formula: Cl2O
- Molecular weight: 86.905
- IUPAC Standard InChI: InChI=1S/Cl2O/c1-3-2
- IUPAC Standard InChIKey: RCJVRSBWZCNNQT-UHFFFAOYSA-N
- CAS Registry Number: 7791-21-1
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Chlorine oxide (Cl2O); Chlorine monooxide; Dichloromonoxide; Chlorine monoxide; Chlorine monoxide (Cl2O); Dichloroxide; Hypochlorous anhydride; Cl2O; Chlorine oxide; Dichlorine oxide
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Gas phase ion energetics data
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 evaluated as indicated in comments:
L - Sharon G. Lias
Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| IE (evaluated) | 10.91 ± 0.02 | eV | N/A | N/A | L |
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 1.30 ± 0.43 | ECD | Wecker, Christodoulides, et al., 1981 | G3MP2B3 calculations indicate an EA of ca. 2.4 eV; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 10.909 ± 0.016 | PI | Thorn, Stief, et al., 1996 | LL |
| 10.94 | PE | Cornford, Frost, et al., 1971 | LLK |
| 11.2 ± 0.1 | EI | Fisher, 1968 | RDSH |
| 11.02 | PE | Chadwick, Cornford, et al., 1972 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| ClO+ | 12.296 ± 0.032 | O | PI | Thorn, Stief, et al., 1996 | LL |
| ClO+ | 12.5 ± 0.1 | Cl | EI | Fisher, 1968 | RDSH |
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.
Wecker, Christodoulides, et al., 1981
Wecker, D.; Christodoulides, A.A.; Schnidler, R.N.,
Studies by the Electron Cyclotron Resonance (ECR) Technique. XV. Interactions of Thermal-Energy Electrons with ClO2 and Cl2O,
Int. J. Mass Spectrom. Ion Phys., 1981, 38, 2-3, 291, https://doi.org/10.1016/0020-7381(81)80084-8
. [all data]
Thorn, Stief, et al., 1996
Thorn, R.P., Jr.; Stief, L.J.; Kuo, S.-C.; Klemm, R.B.,
Ionization energy of Cl2O and ClO, appearance energy of ClO+(Cl2O), and heat of formation of Cl2O,
J. Phys. Chem., 1996, 100, 14178. [all data]
Cornford, Frost, et al., 1971
Cornford, A.B.; Frost, D.C.; Herring, F.G.; McDowell, C.A.,
Photoelectron spectra of F2O and Cl2O,
J. Chem. Phys., 1971, 55, 2820. [all data]
Fisher, 1968
Fisher, I.P.,
Intermediates in the pyrolysis and mass spectrometry of chlorine monoxide and chlorine heptoxide,
J. Chem. Soc. Faraday Trans., 1968, 64, 1852. [all data]
Chadwick, Cornford, et al., 1972
Chadwick, D.; Cornford, A.B.; Frost, D.C.; Herring, F.G.; Katrib, A.; McDowell, C.A.; McLean, R.A.N.,
Photoelectron spectra of some dihalocompounds
in Electron spectroscopy, ed. D.A. Shirley (North-Holland Publixhing Co, Amsterdam), 1972, 453. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity IE (evaluated) Recommended ionization energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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