Methyl hydrogen disulfide


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- + Hydrogen cation = Methyl hydrogen disulfide

By formula: CH3S2- + H+ = CH4S2

Quantity Value Units Method Reference Comment
Δr1471. ± 13.kJ/molG+TSDownard, Bowie, et al., 1992gas phase; Acid: between CF3COCH3, tBuSH
Δr1471. ± 17.kJ/molD-EAMoran and Ellison, 1988gas phase
Quantity Value Units Method Reference Comment
Δr1443. ± 13.kJ/molIMRBDownard, Bowie, et al., 1992gas phase; Acid: between CF3COCH3, tBuSH
Δr1443. ± 17.kJ/molH-TSMoran and Ellison, 1988gas phase

Gas phase ion energetics 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

View reactions leading to CH4S2+ (ion structure unspecified)

De-protonation reactions

CH3S2- + Hydrogen cation = Methyl hydrogen disulfide

By formula: CH3S2- + H+ = CH4S2

Quantity Value Units Method Reference Comment
Δr1471. ± 13.kJ/molG+TSDownard, Bowie, et al., 1992gas phase; Acid: between CF3COCH3, tBuSH
Δr1471. ± 17.kJ/molD-EAMoran and Ellison, 1988gas phase
Quantity Value Units Method Reference Comment
Δr1443. ± 13.kJ/molIMRBDownard, Bowie, et al., 1992gas phase; Acid: between CF3COCH3, tBuSH
Δr1443. ± 17.kJ/molH-TSMoran and Ellison, 1988gas phase

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass 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.
Origin Chemical Concepts
NIST MS number 222068

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Gas Chromatography

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryHP-1640.Kuo and Ho, 199250. m/0.32 mm/1.05 μm, He, 2. K/min; Tstart: 40. C; Tend: 260. C
CapillaryHP-1686.Kuo and Ho, 1992, 250. m/0.32 mm/1.05 μm, He, 2. K/min; Tstart: 40. C; Tend: 260. C
CapillaryOV-1686.Chen and Ho, 1986H2, 4. K/min, 280. C @ 50. min; Column length: 50. m; Column diameter: 0.2 mm; Tstart: 50. C

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.

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]

Kuo and Ho, 1992
Kuo, M.-C.; Ho, C.-T., Volatile constituents of the distilled oils of Welsh onions (Allium fistulosum L. variety Maichuon) and scallions (Allium fistulosum L. variety Caespitosum), J. Agric. Food Chem., 1992, 40, 1, 111-117, https://doi.org/10.1021/jf00013a021 . [all data]

Kuo and Ho, 1992, 2
Kuo, M.-C.; Ho, C.-T., Volatile constituents of the solvent extracts of Welsh onions (Allium fistulosum L. variety Maichuon) and scallions (A. fistulosum L. variety caepitosum), J. Agric. Food Chem., 1992, 40, 10, 1906-1910, https://doi.org/10.1021/jf00022a036 . [all data]

Chen and Ho, 1986
Chen, C.-C.; Ho, C.-T., Identification of sulfurous compounds of shiitake mushroom (Lentinus edodes Sing.), J. Agric. Food Chem., 1986, 34, 5, 830-833, https://doi.org/10.1021/jf00071a016 . [all data]


Notes

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