Sulfur trioxide anion
- Formula: O3S-
- Molecular weight: 80.064
- CAS Registry Number: 12210-38-7
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Ion clustering 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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Clustering reactions
O3S- + = (O3S- •
)
By formula: O3S- + CO2 = (O3S- • CO2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 27.2 ± 0.84 | kJ/mol | TDAs | Keesee, Lee, et al., 1980 | gas phase; B,M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 86.6 | J/mol*K | HPMS | Keesee, Lee, et al., 1980 | gas phase; M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1.3 ± 0.84 | kJ/mol | TDAs | Keesee, Lee, et al., 1980 | gas phase; B |
O3S- + = (O3S- •
)
By formula: O3S- + H2O = (O3S- • H2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrG° | 23.4 ± 0.84 | kJ/mol | IMRE | Möhler, Reiner, et al., 1992 | gas phase; B |
Free energy of reaction
| ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 25. | 296. | FA | Fehsenfeld and Ferguson, 1974 | gas phase; M |
O3S- + = (O3S- •
)
By formula: O3S- + O2S = (O3S- • O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 55.65 ± 0.42 | kJ/mol | TDAs | Keesee, Lee, et al., 1980 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 31.8 ± 0.84 | kJ/mol | TDAs | Keesee, Lee, et al., 1980 | gas phase; B |
(O3S- • •
) +
= (O3S- • 2
•
)
By formula: (O3S- • O2S • O2) + O2S = (O3S- • 2O2S • O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 23.8 ± 2.5 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 15. ± 8.8 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O3S- • ) +
= (O3S- •
•
)
By formula: (O3S- • O2) + O2S = (O3S- • O2S • O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 27.2 ± 3.3 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 18. ± 9.2 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
References
Go To: Top, Ion clustering data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Keesee, Lee, et al., 1980
Keesee, R.G.; Lee, N.; Castleman, A.W., Jr.,
Properties of clusters in the gas phase: V. Complexes of neutral molecules onto negative ions,
J. Chem. Phys., 1980, 73, 2195. [all data]
Möhler, Reiner, et al., 1992
Möhler, O.; Reiner, T.; Arnold, F.,
The Formation of SO5(-) by Gas Phase Ion-Molecule Reactions,
J. Chem. Phys., 1992, 97, 11, 8233, https://doi.org/10.1063/1.463394
. [all data]
Fehsenfeld and Ferguson, 1974
Fehsenfeld, F.C.; Ferguson, E.E.,
Laboratory studies of negative ion reactions with atmospheric trace constituents,
J. Chem. Phys., 1974, 61, 3181. [all data]
Vacher, Jorda, et al., 1992
Vacher, J.R.; Jorda, M.; Leduc, E.; Fitaire, M.,
A Determination of the Stabilities of Negative Ion Clusters in SO2 and SO2-O2 Mixtures,
Int. J. Mass Spectrom. Ion Proc., 1992, 114, 3, 149, https://doi.org/10.1016/0168-1176(92)80033-W
. [all data]
Notes
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- Symbols used in this document:
T Temperature ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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