Sulfur dimer
- Formula: S2
- Molecular weight: 64.130
- IUPAC Standard InChI: InChI=1S/S2/c1-2
- IUPAC Standard InChIKey: MAHNFPMIPQKPPI-UHFFFAOYSA-N
- CAS Registry Number: 23550-45-0
- Chemical structure:
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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
RCD - Robert C. Dunbar
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: (HS2- • 4294967295S2) + S2 = HS2-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 341. ± 15. | kJ/mol | N/A | Entfellner and Boesl, 2009 | gas phase; B |
| ΔrH° | 195. ± 15. | kJ/mol | Ther | Moran and Ellison, 1988 | gas phase; B |
+
= (
•
)
By formula: Mo+ + S2 = (Mo+ • S2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 329. ± 10. | kJ/mol | CIDT | Schroeder, Kretzschmar, et al., 2003 | RCD |
( •
) +
= (
• 2
)
By formula: (Mo+ • S2) + S2 = (Mo+ • 2S2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 300. ± 13. | kJ/mol | CIDT | Schroeder, Kretzschmar, et al., 2003 | RCD |
By formula: (OS2- • 4294967295S2) + S2 = OS2-
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 474.0 ± 1.6 | kJ/mol | N/A | Nimlos and Ellison, 1986 | gas phase; B |
+
= (
•
)
By formula: V+ + S2 = (V+ • S2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 313. ± 13. | kJ/mol | CIDT | Schroeder, Kretzschmar, et al., 2003 | RCD |
( •
) +
= (
• 2
)
By formula: (V+ • S2) + S2 = (V+ • 2S2)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 286. ± 18. | kJ/mol | CIDT | Schroeder, Kretzschmar, et al., 2003 | RCD |
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.
Entfellner and Boesl, 2009
Entfellner, M.; Boesl, U.,
Photodetachment-photoelectron spectroscopy of disulfanide: the ground and first excited electronic state of HS2 and DS2,
Phys. Chem. Chem. Phys., 2009, 11, 15, 2657-2662, https://doi.org/10.1039/b820174a
. [all data]
Moran and Ellison, 1988
Moran, S.; Ellison, G.B.,
Photoelectron Spectroscopy of Sulfur Ions,
J. Phys. Chem., 1988, 92, 7, 1794, https://doi.org/10.1021/j100318a021
. [all data]
Schroeder, Kretzschmar, et al., 2003
Schroeder, D.; Kretzschmar, I.; Schwarz; Armentrout, P.B.,
Structure, Thermochemistry, and Reactivityof MSn+ Cations (M=V,Mo; n=1-3) in the Gas Phase,
Int. J. Mass Spectrom., 2003, 228, 2-3, 439, https://doi.org/10.1016/S1387-3806(03)00137-4
. [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, Ion clustering data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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