SO4 radical anion


Gas phase 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 by: John E. Bartmess

Quantity Value Units Method Reference Comment
Δfgas-176.3 ± 5.2kcal/molR-EAWang, Nicholas, et al., 2000 
Δfgas-176.3 ± 2.3kcal/molTDEqRudny, Sidorov, et al., 1985value altered from reference due to conversion from electron convention to ion convention

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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

O4S- + Water = (O4S- • Water)

By formula: O4S- + H2O = (O4S- • H2O)

Quantity Value Units Method Reference Comment
Δr5.90 ± 0.20kcal/molIMREMöhler, Reiner, et al., 1992gas phase; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
5.1296.FAFehsenfeld and Ferguson, 1974gas phase; M

O4S- + Sulfur dioxide = (O4S- • Sulfur dioxide)

By formula: O4S- + O2S = (O4S- • O2S)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.7296.FAFehsenfeld and Ferguson, 1974gas phase; switching reaction(SO4-)H2O; M

(O4S- • 4294967295sulphur trioxide) + sulphur trioxide = O4S-

By formula: (O4S- • 4294967295O3S) + O3S = O4S-

Quantity Value Units Method Reference Comment
Δr107.6 ± 5.2kcal/molN/AWang, Nicholas, et al., 2000gas phase; B

(O4S- • Water) + Water = (O4S- • 2Water)

By formula: (O4S- • H2O) + H2O = (O4S- • 2H2O)

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
1.6296.FAFehsenfeld and Ferguson, 1974gas phase; 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.

Wang, Nicholas, et al., 2000
Wang, X.B.; Nicholas, J.B.; Wang, L.S., Photoelectron spectroscopy and theoretical calculations of SO4- and HSO4-: Confirmation of high electron affinities of SO4 and HSO4, J. Phys. Chem. A, 2000, 104, 3, 504-508, https://doi.org/10.1021/jp992726r . [all data]

Rudny, Sidorov, et al., 1985
Rudny, E.B.; Sidorov, L.N.; Voyk, O.M., Heterolytic Dissociation of Potassium Sulfate in the Gas Phase and Heats of Formation for Trioxosulfate(1-), Tetraoxosulfate(1-), and Potassium Sulfate(KSO4-) Ions, High Temp., 1985, 23, 238. [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]


Notes

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