Chlorine dioxide anion
- Formula: ClO2-
- Molecular weight: 67.452
- CAS Registry Number: 25052-55-5
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Reaction thermochemistry 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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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Individual Reactions
ClO2- + = (ClO2- •
)
By formula: ClO2- + H2O = (ClO2- • H2O)
Bond type: Hydrogen bond (negative ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 15.20 ± 0.50 | kcal/mol | Ther | Tschurl and Boesl, 2007 | gas phase; affinity is difference from ClO2- EA, corrected for calculated neutral BE of 0.09 eV; B |
| ΔrH° | 16.0 ± 1.5 | kcal/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 9.00 ± 0.30 | kcal/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M |
(ClO2- • 2) +
= (ClO2- • 3
)
By formula: (ClO2- • 2H2O) + H2O = (ClO2- • 3H2O)
Bond type: Hydrogen bond (negative ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 11.8 ± 1.5 | kcal/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 4.80 ± 0.30 | kcal/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M |
(ClO2- • ) +
= (ClO2- • 2
)
By formula: (ClO2- • H2O) + H2O = (ClO2- • 2H2O)
Bond type: Hydrogen bond (negative ion to hydride)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 13.1 ± 1.5 | kcal/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 6.10 ± 0.30 | kcal/mol | TDAs | Blades, Klassen, et al., 1995 | gas phase; T: 293 K. ΔSaff approx. 24 cal/mol-K; B,M |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Tschurl and Boesl, 2007
Tschurl, M.; Boesl, U.,
Photodetachment photoelectron spectroscopy of the weakly bound OClO-center dot H2O complex,
Z. Phys. Chem., 2007, 221, 5, 609-618, https://doi.org/10.1524/zpch.2007.221.5.609
. [all data]
Blades, Klassen, et al., 1995
Blades, A.T.; Klassen, J.S.; Kebarle, P.,
Free Energies of Hydration in the Gas Phase on the Anions of Some Oxo Acids of C, N, S, P, Cl and I,
J. Am. Chem. Soc., 1995, 117, 42, 10563, https://doi.org/10.1021/ja00147a019
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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