MeSS anion
- Formula: CH3S2-
- Molecular weight: 79.165
- CAS Registry Number: 97141-28-1
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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 by: John E. Bartmess
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Individual Reactions
CH3S2- + =
By formula: CH3S2- + H+ = CH4S2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 351.6 ± 3.1 | kcal/mol | G+TS | Downard, Bowie, et al., 1992 | gas phase; Acid: between CF3COCH3, tBuSH |
| ΔrH° | 351.6 ± 4.0 | kcal/mol | D-EA | Moran and Ellison, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 345.0 ± 3.0 | kcal/mol | IMRB | Downard, Bowie, et al., 1992 | gas phase; Acid: between CF3COCH3, tBuSH |
| ΔrG° | 345.0 ± 4.1 | kcal/mol | H-TS | Moran and Ellison, 1988 | gas phase |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, References, Notes
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
Protonation reactions
CH3S2- + =
By formula: CH3S2- + H+ = CH4S2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 351.6 ± 3.1 | kcal/mol | G+TS | Downard, Bowie, et al., 1992 | gas phase; Acid: between CF3COCH3, tBuSH |
| ΔrH° | 351.6 ± 4.0 | kcal/mol | D-EA | Moran and Ellison, 1988 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 345.0 ± 3.0 | kcal/mol | IMRB | Downard, Bowie, et al., 1992 | gas phase; Acid: between CF3COCH3, tBuSH |
| ΔrG° | 345.0 ± 4.1 | kcal/mol | H-TS | Moran and Ellison, 1988 | gas phase |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Downard, Bowie, et al., 1992
Downard, K.M.; Bowie, J.H.; O'Hair, R.A.J.; Krempp, M.; DePuy, C.H.,
Gas Phase Reactions of the Methylsulfinyl and Methyldisulfide Anions,
Int. J. Mass Spectrom. Ion Proc., 1992, 120, 3, 217, https://doi.org/10.1016/0168-1176(92)85050-A
. [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]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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