Dimethyl sulfone

• Formula: C₂H₆O₂S
• Molecular weight: 94.133
• IUPAC Standard InChI: InChI=1S/C2H6O2S/c1-5(2,3)4/h1-2H3 Copy

  
• IUPAC Standard InChIKey: HHVIBTZHLRERCL-UHFFFAOYSA-N Copy
• CAS Registry Number: 67-71-0
• 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: Methane, sulfonylbis-; MSM; Methyl sulfone; Methylsulfonylmethane; Sulfone, dimethyl-; DMSO2; Sulphonylbismethane; Dimethyl sulphone; Sulfonylbismethane; Methane, 1,1'-sulfonylbis-; NSC 63345; 54841-73-5
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• Information on this page:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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 as indicated in comments:
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C₂H₅O₂S^- +  =

By formula: C₂H₅O₂S^- + H⁺ = C₂H₆O₂S

=  + 0.5

By formula: C₂H₆O₂S = C₂H₆OS + 0.5O₂

 +  = ( • )

By formula: Li⁺ + C₂H₆O₂S = (Li⁺ • C₂H₆O₂S)

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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

De-protonation reactions

C₂H₅O₂S^- +  =

By formula: C₂H₅O₂S^- + H⁺ = C₂H₆O₂S

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 by: 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: Li⁺ + C₂H₆O₂S = (Li⁺ • C₂H₆O₂S)

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• SOLID (SPLIT MULL, FLUOROLUBE FOR 3800-1333 AND NUJOL FOR 1333-400 CM ^-1); PERKIN-ELMER 225; DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm^-1 resolution

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

• gas

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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Additional Data

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

Kovats' RI, polar column, isothermal

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

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

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

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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Normal alkane RI, polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Busfield, Mackle, et al., 1961
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Engel and Ratel, 2007
Engel, E.; Ratel, J., Correction of the data generated by mass spectrometry analyses of biological tissues: Application to food authentication, J. Chromatogr. A, 2007, 1154, 1-2, 331-341, https://doi.org/10.1016/j.chroma.2007.02.012 . [all data]

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Madruga, M.S.; Mottram, D.S., The effect of pH on the formation of volatile compounds produced by heating a model system containing 5'-imp and cysteine, J. Braz. Chem. Soc., 1998, 9, 3, 261-271, https://doi.org/10.1590/S0103-50531998000300010 . [all data]

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Moio L.; Rillo L.; Ledda A.; Addeo F., Odorous constituents of ovine milk in relationship to diet, J. Dairy Sci., 1996, 79, 8, 1322-1331, https://doi.org/10.3168/jds.S0022-0302(96)76488-3 . [all data]

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Pozo-Bayon M.A.; Ruiz-Rodriguez A.; Pernin K.; Cayot N., Influence of eggs on the aroma composition of a sponge cake and on the aroma release in model studies on flavored sponge cakes, J. Agric. Food Chem., 2007, 55, 4, 1418-1426, https://doi.org/10.1021/jf062203y . [all data]

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Chung, H.-Y.; Yung, I.K.S.; Ma, W.C.J.; Kim, J.-S., Analysis of volatile components in frozen and dried scallops (Patinopecten yessoensis) by gas chromatography/mass spectrometry, Food Res. Int., 2002, 35, 1, 43-53, https://doi.org/10.1016/S0963-9969(01)00107-7 . [all data]

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Sebastian, I.; Viallon-Fernandez, C.; Berge, P.; Berdague, J.-L., Analysis of the volatile fraction of lamb fat tissue: influence of the type of feeding, Sciences des Aliments, 2003, 23, 4, 497-511, https://doi.org/10.3166/sda.23.497-511 . [all data]

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King, M.-F.; Matthews, M.A.; Rule, D.C.; Field, R.A., Effect of beef packaging method on volatile compounds developed by oven roasting or microwave cooking, J. Agric. Food Chem., 1995, 43, 3, 773-778, https://doi.org/10.1021/jf00051a039 . [all data]

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King, M.-F.; Hamilton, B.L.; Matthews, M.A.; Rule, D.C.; Field, R.A., Isolation and identification of volatiles and condensable material in raw beef with supercritical carbon dioxide extraction, J. Agric. Food Chem., 1993, 41, 11, 1974-1981, https://doi.org/10.1021/jf00035a030 . [all data]

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Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References

• Symbols used in this document:
  

  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  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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