S2 anion
- Formula: S2-
- Molecular weight: 64.131
- CAS Registry Number: 12185-15-8
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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 |
|---|---|---|---|---|---|
| ΔfH°gas | -7.8 ± 5.2 | kcal/mol | Acid | Moran and Ellison, 1988 | |
| ΔfH°gas | <11.0 ± 2.3 | kcal/mol | IMRB | Dillard and Franklin, 1968 | S- + COS -> S2- + CO. Also S2- + COS -> S3- + CO, etc. to n=6 |
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.
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]
Dillard and Franklin, 1968
Dillard, J.G.; Franklin, J.L.,
Ion-Molecule Reactions of Negative Ions. I. Negative Ions of Sulfur,
J. Chem. Phys., 1968, 48, 5, 2349, https://doi.org/10.1063/1.1669435
. [all data]
Notes
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- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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