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
By formula: O3S- + CO2 = (O3S- • CO2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.50 ± 0.20 | kcal/mol | TDAs | Keesee, Lee, et al., 1980 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 20.7 | cal/mol*K | HPMS | Keesee, Lee, et al., 1980 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 0.30 ± 0.20 | kcal/mol | TDAs | Keesee, Lee, et al., 1980 | gas phase; B |
By formula: O3S- + H2O = (O3S- • H2O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrG° | 5.60 ± 0.20 | kcal/mol | IMRE | Möhler, Reiner, et al., 1992 | gas phase; B |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
5.9 | 296. | FA | Fehsenfeld and Ferguson, 1974 | gas phase; M |
By formula: O3S- + O2S = (O3S- • O2S)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.30 ± 0.10 | kcal/mol | TDAs | Keesee, Lee, et al., 1980 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 7.60 ± 0.20 | kcal/mol | TDAs | Keesee, Lee, et al., 1980 | gas phase; B |
By formula: (O3S- • O2S • O2) + O2S = (O3S- • 2O2S • O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 5.70 ± 0.60 | kcal/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 3.6 ± 2.1 | kcal/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
By formula: (O3S- • O2) + O2S = (O3S- • O2S • O2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.50 ± 0.80 | kcal/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 4.4 ± 2.2 | kcal/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
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.
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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