Dimethyl sulfone
- Formula: C2H6O2S
- Molecular weight: 94.133
- IUPAC Standard InChI: InChI=1S/C2H6O2S/c1-5(2,3)4/h1-2H3
- IUPAC Standard InChIKey: HHVIBTZHLRERCL-UHFFFAOYSA-N
- 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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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -89.1 ± 0.8 | kcal/mol | Ccb | Busfield, Mackle, et al., 1961 | Heat of formation derived by Cox and Pilcher, 1970 |
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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 365.8 ± 2.2 | kcal/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
| ΔrH° | 366.5 ± 2.9 | kcal/mol | G+TS | Cumming and Kebarle, 1978 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 358.2 ± 2.0 | kcal/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
| ΔrG° | 358.9 ± 2.0 | kcal/mol | IMRE | Cumming and Kebarle, 1978 | gas phase; B |
=
+ 0.5
By formula: C2H6O2S = C2H6OS + 0.5O2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 58.16 ± 0.20 | kcal/mol | Cm | Douglas, 1946 | liquid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = 59.0 ± 0.2 kcal/mol; At 291°K; ALS |
+
= (
•
)
By formula: Li+ + C2H6O2S = (Li+ • C2H6O2S)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 48.5 | kcal/mol | CIDC | Buncel, Decouzon, et al., 1997 | RCD |
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
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 10.65 | PE | Solouki, Bock, et al., 1975 | Vertical value; LLK |
| 10.80 | PE | Muller and Schweig, 1973 | Vertical value; LLK |
| 10.65 | PE | Solouki, Bock, et al., 1972 | Vertical value; LLK |
| 10.97 | PE | Mines, Thomas, et al., 1972 | Vertical value; LLK |
De-protonation reactions
C2H5O2S- + =
By formula: C2H5O2S- + H+ = C2H6O2S
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 365.8 ± 2.2 | kcal/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
| ΔrH° | 366.5 ± 2.9 | kcal/mol | G+TS | Cumming and Kebarle, 1978 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 358.2 ± 2.0 | kcal/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
| ΔrG° | 358.9 ± 2.0 | kcal/mol | IMRE | Cumming and Kebarle, 1978 | gas phase; B |
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)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 48.5 | kcal/mol | CIDC | Buncel, Decouzon, et al., 1997 |
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
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Capillary | PEG-20M | 160. | 1900. | Huber, Kenndler, et al., 1993 | Column length: 10. m; Phase thickness: 1.33 μm |
| Capillary | PEG-20M | 180. | 1913. | Huber, Kenndler, et al., 1993 | Column length: 10. m; Phase thickness: 1.33 μm |
| Capillary | PEG-20M | 130. | 1881.4 | Huber, Kenndler, et al., 1993 | Column length: 10. m; Phase thickness: 1.33 μm |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-5MS | 919. | Cho, Namgung, et al., 2008 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 1. min, 4. K/min, 200. C @ 10. min |
| Capillary | SPB-5 | 915. | Engel and Ratel, 2007 | 60. m/0.32 mm/1. μm, 40. C @ 2. min, 3. K/min, 230. C @ 10. min |
| Capillary | DB-5 | 926. | Moio, Piombino, et al., 2000 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 210. C |
| Capillary | DB-5 | 925. | Madruga and Mottram, 1998 | 30. m/0.32 mm/1. μm, 60. C @ 5. min, 4. K/min, 250. C @ 20. min |
| Capillary | DB-5 | 926. | Moio L., Rillo L., et al., 1996 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 220. C |
| Capillary | DB-5 | 924. | Moio L., Rillo L., et al., 1996 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 220. C |
| Capillary | DB-5 | 921.6 | D'Agostino and Provost, 1985 | 15. m/0.32 mm/0.25 μm, He, 50. C @ 2. min, 10. K/min; Tend: 300. C |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-5MS | 914.9 | Andriamaharavo, 2014 | 30. m/0.25 mm/0.25 μm, He; Program: 60C (1 min) => 5 C/min => 210C => 10 C/min => 280C (15 min) |
Van Den Dool and Kratz RI, polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-Wax | 1912. | Cho, Namgung, et al., 2008 | 30. m/0.25 mm/0.25 μm, He, 40. C @ 1. min, 4. K/min, 200. C @ 10. min |
| Capillary | DB-Wax | 1895. | Pozo-Bayon M.A., Ruiz-Rodriguez A., et al., 2007 | 30. m/0.25 mm/0.5 μm, He, 40. C @ 5. min, 4. K/min, 250. C @ 15. min |
| Capillary | DB-Wax | 1912. | Cho, Choi, et al., 2006 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 1. min, 4. K/min, 200. C @ 10. min |
| Capillary | DB-Wax | 1908. | Cho, Choi, et al., 2006 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 1. min, 4. K/min, 200. C @ 10. min |
| Capillary | Supelcowax-10 | 1906. | Chung, Yung, et al., 2002 | 60. m/0.25 mm/0.25 μm, He, 35. C @ 5. min, 2. K/min, 195. C @ 90. min |
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-5 | 912. | Cais-Sokolinska, Majcher, et al., 2011 | 25. m/0.20 mm/0.33 μm, Helium, 50. C @ 1. min, 20. K/min; Tend: 240. C |
| Capillary | SPB-5 | 916. | Sivadier, Ratel, et al., 2009 | 60. m/0.32 mm/1.00 μm, 40. C @ 5. min, 3. K/min, 230. C @ 10. min |
| Capillary | SPB-5 | 911. | Sebastian, Viallon-Fernandez, et al., 2003 | 60. m/0.32 mm/1.0 μm, Helium, 3. K/min; Tstart: 30. C; Tend: 230. C |
| Capillary | Ultra-2 | 924. | King, Matthews, et al., 1995 | 50. m/0.32 mm/0.52 μm, He, 40. C @ 3. min, 4. K/min, 250. C @ 30. min |
| Capillary | Ultra-2 | 915. | King, Hamilton, et al., 1993 | 50. m/0.32 mm/0.52 μm, He, 40. C @ 3. min, 4. K/min, 250. C @ 30. min |
| Capillary | DB-5 | 926. | Moio, Dekimpe, et al., 1993 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 220. C |
| Capillary | DB-5 | 924. | Moio, Langlois, et al., 1993 | 30. m/0.32 mm/1. μm, H2, 40. C @ 5. min, 5. K/min; Tend: 220. C |
Normal alkane RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | RTX-5 MS | 931. | Mebazaa, Mahmoudi, et al., 2009 | 30. m/0.25 mm/0.25 μm, Helium; Program: 50 0C (5 min) 2 0C/min -> 100 0C (5 min) 5 0C/min -> 300 0C |
| Capillary | RTX-5 MS | 925. | Mebazaa, Mahmoudi, et al., 2009 | 30. m/0.25 mm/0.25 μm, Helium; Program: not specified |
| Capillary | SPB-5 | 909. | Begnaud, Pérès, et al., 2003 | 60. m/0.32 mm/1. μm; Program: not specified |
| Capillary | DB-5MS | 918. | Young, Lane, et al., 2003 | 30. m/0.25 mm/1. μm; Program: 50C => 3C/min => 160C => 6C/min => 250C => 25C/min => 325C |
Normal alkane RI, polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | CP-Wax 52CB | 1914. | Povolo, Contarini, et al., 2007 | 60. m/0.32 mm/0.5 μm, He, 40. C @ 8. min, 4. K/min, 220. C @ 20. min |
| Capillary | CP-Wax 52CB | 1911. | Povolo, Contarini, et al., 2007 | 60. m/0.32 mm/0.5 μm, He, 40. C @ 8. min, 4. K/min, 220. C @ 20. min |
| Capillary | RTX-Wax | 1895. | Prososki, Etzel, et al., 2007 | 30. m/0.25 mm/0.5 μm, He, 40. C @ 5. min, 10. K/min, 220. C @ 10. min |
Normal alkane RI, polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-FFAP | 1887. | Mebazaa, Mahmoudi, et al., 2009 | 30. m/0.25 mm/0.25 μm, Helium; Program: 50 0C 2 0C/min -> 100 0C (5 min) 5 0C/min -> 250 0C |
| Capillary | DB-FFAP | 1890. | Mebazaa, Mahmoudi, et al., 2009 | 30. m/0.25 mm/0.25 μm, Helium; Program: not specified |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, 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
Busfield, W.K.; Mackle, H.; O'Hare, P.A.G.,
Studies in the thermochemistry of sulphones. Part 2 - The standard heats of formation of sulphones of the type RSO2CH3,
Trans. Faraday Soc., 1961, 57, 1054-1057. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr.,
The gas phase acidity scale from methanol to phenol,
J. Am. Chem. Soc., 1979, 101, 6047. [all data]
Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P.,
Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A),
Can. J. Chem., 1978, 56, 1. [all data]
Douglas, 1946
Douglas, T.B.,
Heats of formation of liquid methyl sulfoxide and crystalline methyl sulfone at 18°,
J. Am. Chem. Soc., 1946, 68, 1072-1076. [all data]
Buncel, Decouzon, et al., 1997
Buncel, E.; Decouzon, M.; Formento, A.; Gal, J.-F.; Herreros, M.; Li, L.; Maria, P.-C.,
Lithium-Cation and Proton Affinities of Sulfoxides and Sulfones: A Fourier Transform Ion Cyclotron Resonance Study,
J. Am. Soc. Mass Spectrom., 1997, 8, 3, 262, https://doi.org/10.1016/S1044-0305(96)00255-3
. [all data]
Solouki, Bock, et al., 1975
Solouki, B.; Bock, H.; Appel, R.,
Photoelektronenspektren und Molekuleigenschaften, XLV Schwefelsaure-Derivate X2SY2: Alkyl-, Vinyl- und Arylsulfone, Alkylsulfoimide und Sulfurylhalogenide,
Chem. Ber., 1975, 108, 897. [all data]
Muller and Schweig, 1973
Muller, C.; Schweig, A.,
Konjugation in Sulfonen,
Tetrahedron, 1973, 29, 3973. [all data]
Solouki, Bock, et al., 1972
Solouki, B.; Bock, H.; Appel, R.,
Sequence of orbitals in sulfones and sulfodiimides,
Angew. Chem. Int. Ed. Engl., 1972, 11, 927. [all data]
Mines, Thomas, et al., 1972
Mines, G.W.; Thomas, R.K.; Thompson, H.,
Photoelectron spectra of compounds containing thionyl and sulphuryl groups,
Proc. R. Soc. London A:, 1972, 329, 275. [all data]
Huber, Kenndler, et al., 1993
Huber, J.F.K.; Kenndler, E.; Reich, G.; Hack, W.; Wolf, J.,
Optimal Selection of Gas Chromatographic Columns for the Analytical Control of Chemical Warfare Agents by Application of Information Theory to Retention Data,
Anal. Chem., 1993, 65, 20, 2903-2906, https://doi.org/10.1021/ac00068a031
. [all data]
Cho, Namgung, et al., 2008
Cho, I.H.; Namgung, H.-J.; Choi, H.-K.; Kim, Y.-S.,
Volatiles and key odorants in the pileus and stipe of pine-mushroom (Tricholoma matsutake Sing.),
Food Chem., 2008, 106, 1, 71-76, https://doi.org/10.1016/j.foodchem.2007.05.047
. [all data]
Engel and Ratel, 2007
Engel, E.; Ratel, J.,
Correction of the data generated by mass spectrometry analyses of biological tissues: Application to food authentication,
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. [all data]
Moio, Piombino, et al., 2000
Moio, L.; Piombino, P.; Addeo, F.,
Odour-impact compounds of Gorgonzola cheese,
J. Dairy Res., 2000, 67, 2, 273-285, https://doi.org/10.1017/S0022029900004106
. [all data]
Madruga and Mottram, 1998
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]
Moio L., Rillo L., et al., 1996
Moio L.; Rillo L.; Ledda A.; Addeo F.,
Odorous constituents of ovine milk in relationship to diet,
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. [all data]
D'Agostino and Provost, 1985
D'Agostino, P.A.; Provost, L.R.,
Gas chromatographic retention indices of chemical warfare agents and simulants,
J. Chromatogr., 1985, 331, 47-54, https://doi.org/10.1016/0021-9673(85)80005-4
. [all data]
Andriamaharavo, 2014
Andriamaharavo, N.R.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2014. [all data]
Pozo-Bayon M.A., Ruiz-Rodriguez A., et al., 2007
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,
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. [all data]
Cho, Choi, et al., 2006
Cho, I.H.; Choi, H.-K.; Kim, Y.-S.,
Difference in the volatile composition of pine-mushrooms (Tricholoma matsutake Sing.) according to their grades,
J. Agric. Food Chem., 2006, 54, 13, 4820-4825, https://doi.org/10.1021/jf0601416
. [all data]
Chung, Yung, et al., 2002
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]
Cais-Sokolinska, Majcher, et al., 2011
Cais-Sokolinska, D.; Majcher, M.; Pikul, J.; Bielinska, S.; Czauderma, M.; Wojtowski, J.,
The effect of Camelia sativa cake diet supplementation on sensory and volatile profiles of ewe's milk,
African J. Biotechnol., 2011, 10, 37, 7245-7252. [all data]
Sivadier, Ratel, et al., 2009
Sivadier, G.; Ratel, J.; Engel, E.,
Latency and persistence of diet volatile biomarkers in lamb fats,
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. [all data]
Sebastian, Viallon-Fernandez, et al., 2003
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,
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. [all data]
King, Matthews, et al., 1995
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,
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. [all data]
King, Hamilton, et al., 1993
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,
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. [all data]
Moio, Dekimpe, et al., 1993
Moio, L.; Dekimpe, J.; Etievant, P.; Addeo, F.,
Neutral volatile compounds in the raw milks from different species,
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. [all data]
Moio, Langlois, et al., 1993
Moio, L.; Langlois, D.; Etievant, P.; Addeo, F.,
Powerful odorants in bovine, ovine, caprine and water buffalo milk determined by means of gas chromatography-olfactometry,
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. [all data]
Mebazaa, Mahmoudi, et al., 2009
Mebazaa, R.; Mahmoudi, A.; Fouchet, M.; Dos Santos, M.; Kamissoko, F.; Nafti, A.; Ben Cheikh, R.; Rega, B.; Camel, V.,
Characterization of volatile compounds in Tunisian fenugreek seeds,
Food Chem., 2009, 115, 4, 1326-1336, https://doi.org/10.1016/j.foodchem.2009.01.066
. [all data]
Begnaud, Pérès, et al., 2003
Begnaud, F.; Pérès, C.; Berdagué, J.-L.,
Characterization of volatile effluents of livestock buildings by solid-phase microextraction,
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. [all data]
Young, Lane, et al., 2003
Young, O.A.; Lane, G.A.; Priolo, A.; Fraser, K.,
Pastoral and species flavour in lambs raised on pasture, lucerne or maize,
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. [all data]
Povolo, Contarini, et al., 2007
Povolo, M.; Contarini, G.; Mele, M.; Secchiari, P.,
Study on the influence of pasture on volatile fraction of Ewes' dairy products by solid-phase microextraction and gas chromatography-mass spectrometry,
J. Dairy Sci., 2007, 90, 2, 556-569, https://doi.org/10.3168/jds.S0022-0302(07)71539-4
. [all data]
Prososki, Etzel, et al., 2007
Prososki, R.A.; Etzel, M.R.; Rankin, S.A.,
Solvent type affects the number, distribution, and relative quantities of volatile compounds found in sweet whey powder,
J. Dairy Sci., 2007, 90, 2, 523-531, https://doi.org/10.3168/jds.S0022-0302(07)71535-7
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, 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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
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