Sulfur dioxide anion
- Formula: O2S-
- Molecular weight: 64.064
- CAS Registry Number: 12143-17-8
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Reaction thermochemistry 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 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
O2S- + = (O2S- •
)
By formula: O2S- + O2S = (O2S- • O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 100.4 ± 0.84 | kJ/mol | TDAs | Keesee, Lee, et al., 1980 | gas phase; B,M |
| ΔrH° | 89.1 ± 5.4 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| ΔrH° | 77.40 | kJ/mol | N/A | Dresch, Kramer, et al., 1991 | gas phase; Both dissociation and electron detachment?; B |
| ΔrH° | 76.57 | kJ/mol | N/A | Snodgrass, Coe, et al., 1988 | gas phase; Appears to be dissociation + electron detachment; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 141. | J/mol*K | HPMS | Keesee, Lee, et al., 1980 | gas phase; M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 58.2 ± 1.7 | kJ/mol | TDAs | Keesee, Lee, et al., 1980 | gas phase; B |
| ΔrG° | 43.5 ± 9.2 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • ) +
= (O2S- • 2
)
By formula: (O2S- • O2S) + O2S = (O2S- • 2O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 33.9 ± 1.3 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| ΔrH° | 35. | kJ/mol | HPMS | Keesee, Lee, et al., 1980 | gas phase; M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 66.9 | J/mol*K | HPMS | Keesee, Lee, et al., 1980 | gas phase; M |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 16.3 ± 0.84 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • 2 • 3
) +
= (O2S- • 3
• 3
)
By formula: (O2S- • 2H2O • 3O2S) + H2O = (O2S- • 3H2O • 3O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 27.6 ± 1.3 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 12.6 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • 2 • 4
) +
= (O2S- • 3
• 4
)
By formula: (O2S- • 2H2O • 4O2S) + H2O = (O2S- • 3H2O • 4O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 29.7 ± 2.9 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 10.9 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • 5 • 2
) +
= (O2S- • 6
• 2
)
By formula: (O2S- • 5O2S • 2H2O) + O2S = (O2S- • 6O2S • 2H2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 15.9 ± 3.8 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 4.60 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • 6 • 2
) +
= (O2S- • 7
• 2
)
By formula: (O2S- • 6O2S • 2H2O) + O2S = (O2S- • 7O2S • 2H2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 15.5 ± 2.9 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 2.5 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • • 3
) +
= (O2S- • 2
• 3
)
By formula: (O2S- • H2O • 3O2S) + H2O = (O2S- • 2H2O • 3O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 29.7 ± 1.7 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 15.9 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • • 4
) +
= (O2S- • 2
• 4
)
By formula: (O2S- • H2O • 4O2S) + H2O = (O2S- • 2H2O • 4O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 29.7 ± 2.9 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 12.6 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • 6 •
) +
= (O2S- • 7
•
)
By formula: (O2S- • 6O2S • H2O) + O2S = (O2S- • 7O2S • H2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 13.4 ± 2.5 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 2.9 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • 2 •
) +
= (O2S- • 3
•
)
By formula: (O2S- • 2O2S • O2) + O2S = (O2S- • 3O2S • O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 15.1 ± 1.7 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 6. ± 13. | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • •
) +
= (O2S- • 2
•
)
By formula: (O2S- • O2S • O2) + O2S = (O2S- • 2O2S • O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 19.2 ± 1.7 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 10. ± 8.4 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • 2) +
= (O2S- •
• 2
)
By formula: (O2S- • 2O2S) + H2O = (O2S- • H2O • 2O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 31.0 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 15.1 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • 3) +
= (O2S- •
• 3
)
By formula: (O2S- • 3O2S) + H2O = (O2S- • H2O • 3O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 31.8 ± 1.3 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 14.2 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • 4) +
= (O2S- •
• 4
)
By formula: (O2S- • 4O2S) + H2O = (O2S- • H2O • 4O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 31.4 ± 1.7 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 13.8 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • 5) +
= (O2S- •
• 5
)
By formula: (O2S- • 5O2S) + H2O = (O2S- • H2O • 5O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 27.2 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 13.0 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • ) +
= (O2S- •
•
)
By formula: (O2S- • O2S) + H2O = (O2S- • H2O • O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 37.2 ± 3.3 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 18.0 ± 0.84 | kJ/mol | TDAs | Vacher, Leduc, et al., 1994 | gas phase; B |
(O2S- • ) +
= (O2S- •
•
)
By formula: (O2S- • O2) + O2S = (O2S- • O2S • O2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 46.0 ± 4.2 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 26. ± 9.2 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • 2) +
= (O2S- • 3
)
By formula: (O2S- • 2O2S) + O2S = (O2S- • 3O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 26.8 ± 0.84 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 12.6 ± 0.84 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • 3) +
= (O2S- • 4
)
By formula: (O2S- • 3O2S) + O2S = (O2S- • 4O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 22.6 ± 1.3 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 9.20 ± 0.84 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • 4) +
= (O2S- • 5
)
By formula: (O2S- • 4O2S) + O2S = (O2S- • 5O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 17.6 ± 0.84 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 5.02 ± 0.84 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • 5) +
= (O2S- • 6
)
By formula: (O2S- • 5O2S) + O2S = (O2S- • 6O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 15.1 ± 1.3 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 3.8 ± 0.84 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • 6) +
= (O2S- • 7
)
By formula: (O2S- • 6O2S) + O2S = (O2S- • 7O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 14.2 ± 0.84 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 2.1 ± 0.84 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • 9) +
= (O2S- • 10
)
By formula: (O2S- • 9O2S) + O2S = (O2S- • 10O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 12.6 ± 2.5 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 0.4 ± 9.6 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • 7) +
= (O2S- • 8
)
By formula: (O2S- • 7O2S) + O2S = (O2S- • 8O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 14.2 ± 1.3 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1. ± 5.0 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • 8) +
= (O2S- • 9
)
By formula: (O2S- • 8O2S) + O2S = (O2S- • 9O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 12.6 ± 1.7 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1. ± 6.3 | kJ/mol | TDAs | Vacher, Jorda, et al., 1992 | gas phase; B |
(O2S- • 4294967295) +
= O2S-
By formula: (O2S- • 4294967295OS) + OS = O2S-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 516.7 ± 5.0 | kJ/mol | N/A | Nimlos and Ellison, 1986 | gas phase; B |
References
Go To: Top, Reaction thermochemistry 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]
Vacher, Leduc, et al., 1994
Vacher, J.R.; Leduc, E.; Fitaire, M.,
Stabilities of Anionic Mixed Clusters of Sulfur Dioxide and Water,
Int. J. Mass Spectrom. Ion Proc., 1994, 135, 2-3, 139, https://doi.org/10.1016/0168-1176(94)03985-2
. [all data]
Dresch, Kramer, et al., 1991
Dresch, T.; Kramer, H.; Thurner, Y.; Weber, R.,
Photoelectrons from Negative Dimers and Clusters of Sulfur Dioxide,
Chem. Phys. Lett., 1991, 177, 4-5, 383, https://doi.org/10.1016/0009-2614(91)85070-D
. [all data]
Snodgrass, Coe, et al., 1988
Snodgrass, J.T.; Coe, J.V.; Friedhoff, C.B.; McHugh, K.M.; Bowen, K.H.,
On the Photodissociation of (SO2)2-,
J. Chem. Phys., 1988, 88, 12, 8014, https://doi.org/10.1063/1.454261
. [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]
Nimlos and Ellison, 1986
Nimlos, M.R.; Ellison, G.B.,
Photoelectron spectroscopy of SO2-, S3-, and S2O-,
J. Phys. Chem., 1986, 90, 2574. [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 ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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