Methyl hydrogen disulfide
- Formula: CH4S2
- Molecular weight: 80.172
- IUPAC Standard InChIKey: KFLNNVFDKSNGBW-UHFFFAOYSA-N
- CAS Registry Number: 6251-26-9
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Methyl hydrodisulfide; Methyl sulfhydryl sulfide; Hydrogen methyl disulfide
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Gas phase ion energetics data
Go To: Top, Mass spectrum (electron ionization), 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
View reactions leading to CH4S2+ (ion structure unspecified)
De-protonation reactions
CH3S2- + =
By formula: CH3S2- + H+ = CH4S2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1471. ± 13. | kJ/mol | G+TS | Downard, Bowie, et al., 1992 | gas phase; Acid: between CF3COCH3, tBuSH |
ΔrH° | 1471. ± 17. | kJ/mol | D-EA | Moran and Ellison, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1443. ± 13. | kJ/mol | IMRB | Downard, Bowie, et al., 1992 | gas phase; Acid: between CF3COCH3, tBuSH |
ΔrG° | 1443. ± 17. | kJ/mol | H-TS | Moran and Ellison, 1988 | gas phase |
Mass spectrum (electron ionization)
Go To: Top, Gas phase ion energetics 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
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Origin | Chemical Concepts |
NIST MS number | 222068 |
References
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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, Gas phase ion energetics data, Mass spectrum (electron ionization), 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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