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Dimethyl Sulfoxide

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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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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

C2H5OS- + Hydrogen cation = Dimethyl Sulfoxide

By formula: C2H5OS- + H+ = C2H6OS

Quantity Value Units Method Reference Comment
Deltar373.5 ± 2.1kcal/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Deltar374.3 ± 2.3kcal/molG+TSCumming and Kebarle, 1978gas phase; B
Quantity Value Units Method Reference Comment
Deltar366.4 ± 2.0kcal/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Deltar367.2 ± 2.0kcal/molIMRECumming and Kebarle, 1978gas phase; B

Nitrogen oxide anion + Dimethyl Sulfoxide = (Nitrogen oxide anion bullet Dimethyl Sulfoxide)

By formula: NO2- + C2H6OS = (NO2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar19.2 ± 1.0kcal/molTDAsSieck, 1985gas phase; B,M
Quantity Value Units Method Reference Comment
Deltar25.cal/mol*KN/ASieck, 1985gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Deltar8.7 ± 1.0kcal/molTDAsSieck, 1985gas phase; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
8.7420.PHPMSSieck, 1985gas phase; Entropy change calculated or estimated; M

C6H5NO2- + Dimethyl Sulfoxide = (C6H5NO2- bullet Dimethyl Sulfoxide)

By formula: C6H5NO2- + C2H6OS = (C6H5NO2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar16.80 ± 0.10kcal/molTDAsSieck, 1985gas phase; B,M
Quantity Value Units Method Reference Comment
Deltar24.5cal/mol*KPHPMSSieck, 1985gas phase; M
Quantity Value Units Method Reference Comment
Deltar9.50 ± 0.20kcal/molTDAsSieck, 1985gas phase; B
Deltar8.6 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

C7H7NO3- + Dimethyl Sulfoxide = (C7H7NO3- bullet Dimethyl Sulfoxide)

By formula: C7H7NO3- + C2H6OS = (C7H7NO3- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar16.3 ± 2.0kcal/molN/AChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B,M
Quantity Value Units Method Reference Comment
Deltar22.5cal/mol*KPHPMSChowdhury, 1987gas phase; M
Quantity Value Units Method Reference Comment
Deltar8.4 ± 2.0kcal/molTDAsChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Bromine anion + Dimethyl Sulfoxide = (Bromine anion bullet Dimethyl Sulfoxide)

By formula: Br- + C2H6OS = (Br- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar17.30kcal/molTDAsMagnera, Caldwell, et al., 1984gas phase; B,M
Deltar17.2kcal/molHPMSCaldwell, Masucci, et al., 1989gas phase; M
Quantity Value Units Method Reference Comment
Deltar21.4cal/mol*KPHPMSMagnera, Caldwell, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar10.90kcal/molTDAsMagnera, Caldwell, et al., 1984gas phase; B

Iodide + Dimethyl Sulfoxide = (Iodide bullet Dimethyl Sulfoxide)

By formula: I- + C2H6OS = (I- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar15.70kcal/molTDAsMagnera, Caldwell, et al., 1984gas phase; B,M
Deltar16.kcal/molPHPMSCaldwell, Masucci, et al., 1989gas phase; M
Quantity Value Units Method Reference Comment
Deltar21.7cal/mol*KPHPMSMagnera, Caldwell, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar9.20kcal/molTDAsMagnera, Caldwell, et al., 1984gas phase; B

C7H4F3NO2- + Dimethyl Sulfoxide = (C7H4F3NO2- bullet Dimethyl Sulfoxide)

By formula: C7H4F3NO2- + C2H6OS = (C7H4F3NO2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar14.6 ± 2.0kcal/molN/AChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B,M
Quantity Value Units Method Reference Comment
Deltar22.3cal/mol*KPHPMSChowdhury, 1987gas phase; M
Quantity Value Units Method Reference Comment
Deltar7.1 ± 2.0kcal/molTDAsChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Chlorine anion + Dimethyl Sulfoxide = (Chlorine anion bullet Dimethyl Sulfoxide)

By formula: Cl- + C2H6OS = (Cl- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar18.60kcal/molTDAsMagnera, Caldwell, et al., 1984gas phase; B,M
Quantity Value Units Method Reference Comment
Deltar20.4cal/mol*KPHPMSMagnera, Caldwell, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar12.50kcal/molTDAsMagnera, Caldwell, et al., 1984gas phase; B

C2H7OS+ + Dimethyl Sulfoxide = (C2H7OS+ bullet Dimethyl Sulfoxide)

By formula: C2H7OS+ + C2H6OS = (C2H7OS+ bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar30.8kcal/molPHPMSLau, Saluja, et al., 1980gas phase; switching reaction((CH3)2SOH+)(CH3)2CO; M
Quantity Value Units Method Reference Comment
Deltar22.9cal/mol*KPHPMSLau, Saluja, et al., 1980gas phase; switching reaction((CH3)2SOH+)(CH3)2CO; M

(C2H7OS+ bullet Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (C2H7OS+ bullet 2Dimethyl Sulfoxide)

By formula: (C2H7OS+ bullet C2H6OS) + C2H6OS = (C2H7OS+ bullet 2C2H6OS)

Quantity Value Units Method Reference Comment
Deltar21.3kcal/molPHPMSLau, Saluja, et al., 1980gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Deltar10.9cal/mol*KPHPMSLau, Saluja, et al., 1980gas phase; Entropy change is questionable; M

(Potassium ion (1+) bullet 4Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) bullet 5Dimethyl Sulfoxide)

By formula: (K+ bullet 4C2H6OS) + C2H6OS = (K+ bullet 5C2H6OS)

Quantity Value Units Method Reference Comment
Deltar15.8kcal/molHPMSSunner, 1984gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Deltar37.cal/mol*KHPMSSunner, 1984gas phase; Entropy change is questionable; M

(Potassium ion (1+) bullet 5Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) bullet 6Dimethyl Sulfoxide)

By formula: (K+ bullet 5C2H6OS) + C2H6OS = (K+ bullet 6C2H6OS)

Quantity Value Units Method Reference Comment
Deltar15.5kcal/molHPMSSunner, 1984gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Deltar40.cal/mol*KHPMSSunner, 1984gas phase; Entropy change is questionable; M

C6H4FNO2- + Dimethyl Sulfoxide = (C6H4FNO2- bullet Dimethyl Sulfoxide)

By formula: C6H4FNO2- + C2H6OS = (C6H4FNO2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar7.9 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
7.9343.PHPMSChowdhury, 1987gas phase; M

C6H4FNO2- + Dimethyl Sulfoxide = (C6H4FNO2- bullet Dimethyl Sulfoxide)

By formula: C6H4FNO2- + C2H6OS = (C6H4FNO2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar8.2 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
8.2343.PHPMSChowdhury, 1987gas phase; M

C6H4ClNO2- + Dimethyl Sulfoxide = (C6H4ClNO2- bullet Dimethyl Sulfoxide)

By formula: C6H4ClNO2- + C2H6OS = (C6H4ClNO2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar7.5 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
7.5343.PHPMSChowdhury, 1987gas phase; M

C6H4FNO2- + Dimethyl Sulfoxide = (C6H4FNO2- bullet Dimethyl Sulfoxide)

By formula: C6H4FNO2- + C2H6OS = (C6H4FNO2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar7.8 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
7.8343.PHPMSChowdhury, 1987gas phase; M

C6H4ClNO2- + Dimethyl Sulfoxide = (C6H4ClNO2- bullet Dimethyl Sulfoxide)

By formula: C6H4ClNO2- + C2H6OS = (C6H4ClNO2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar7.8 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
7.8343.PHPMSChowdhury, 1987gas phase; M

C6H4ClNO2- + Dimethyl Sulfoxide = (C6H4ClNO2- bullet Dimethyl Sulfoxide)

By formula: C6H4ClNO2- + C2H6OS = (C6H4ClNO2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar7.6 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
7.6343.PHPMSChowdhury, 1987gas phase; M

C6H4N2O4- + Dimethyl Sulfoxide = (C6H4N2O4- bullet Dimethyl Sulfoxide)

By formula: C6H4N2O4- + C2H6OS = (C6H4N2O4- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar4.4 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
4.4343.PHPMSChowdhury, 1987gas phase; M

C6H4N2O4- + Dimethyl Sulfoxide = (C6H4N2O4- bullet Dimethyl Sulfoxide)

By formula: C6H4N2O4- + C2H6OS = (C6H4N2O4- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar6.2 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
6.2343.PHPMSChowdhury, 1987gas phase; M

C6H4N2O4- + Dimethyl Sulfoxide = (C6H4N2O4- bullet Dimethyl Sulfoxide)

By formula: C6H4N2O4- + C2H6OS = (C6H4N2O4- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar5.9 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
5.9343.PHPMSChowdhury, 1987gas phase; M

C7H7NO2- + Dimethyl Sulfoxide = (C7H7NO2- bullet Dimethyl Sulfoxide)

By formula: C7H7NO2- + C2H6OS = (C7H7NO2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar8.6 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
8.6343.PHPMSChowdhury, 1987gas phase; M

C6F4O2- + Dimethyl Sulfoxide = (C6F4O2- bullet Dimethyl Sulfoxide)

By formula: C6F4O2- + C2H6OS = (C6F4O2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar4.5 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
4.5343.PHPMSChowdhury, 1987gas phase; M

p-Benzoquinone anion + Dimethyl Sulfoxide = (p-Benzoquinone anion bullet Dimethyl Sulfoxide)

By formula: C6H4O2- + C2H6OS = (C6H4O2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar6.2 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
6.2343.PHPMSChowdhury, 1987gas phase; M

C7H4N2O2- + Dimethyl Sulfoxide = (C7H4N2O2- bullet Dimethyl Sulfoxide)

By formula: C7H4N2O2- + C2H6OS = (C7H4N2O2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar6.8 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
6.8343.PHPMSChowdhury, 1987gas phase; M

Potassium ion (1+) + Dimethyl Sulfoxide = (Potassium ion (1+) bullet Dimethyl Sulfoxide)

By formula: K+ + C2H6OS = (K+ bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar31.1kcal/molCIDTKlassen, Anderson, et al., 1996RCD
Deltar35.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar31.cal/mol*KHPMSSunner, 1984gas phase; M

C4H2O3- + Dimethyl Sulfoxide = (C4H2O3- bullet Dimethyl Sulfoxide)

By formula: C4H2O3- + C2H6OS = (C4H2O3- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar6.7 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
6.7343.PHPMSChowdhury, 1987gas phase; M

C7H4N2O2- + Dimethyl Sulfoxide = (C7H4N2O2- bullet Dimethyl Sulfoxide)

By formula: C7H4N2O2- + C2H6OS = (C7H4N2O2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar6.6 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
6.6343.PHPMSChowdhury, 1987gas phase; M

2Dimethyl sulfide + Oxygen = 2Dimethyl Sulfoxide

By formula: 2C2H6S + O2 = 2C2H6OS

Quantity Value Units Method Reference Comment
Deltar-66.36 ± 0.20kcal/molCmDouglas, 1946liquid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -66.5 ± 0.2 kcal/mol; At 291°K; ALS

Dimethyl sulfone = Dimethyl Sulfoxide + 0.5Oxygen

By formula: C2H6O2S = C2H6OS + 0.5O2

Quantity Value Units Method Reference Comment
Deltar58.16 ± 0.20kcal/molCmDouglas, 1946liquid phase; Reanalyzed by Cox and Pilcher, 1970, Original value = 59.0 ± 0.2 kcal/mol; At 291°K; ALS

(Chlorine anion bullet 2Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Chlorine anion bullet 3Dimethyl Sulfoxide)

By formula: (Cl- bullet 2C2H6OS) + C2H6OS = (Cl- bullet 3C2H6OS)

Quantity Value Units Method Reference Comment
Deltar14.9kcal/molPHPMSMagnera, Caldwell, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar29.8cal/mol*KPHPMSMagnera, Caldwell, et al., 1984gas phase; M

(Chlorine anion bullet 3Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Chlorine anion bullet 4Dimethyl Sulfoxide)

By formula: (Cl- bullet 3C2H6OS) + C2H6OS = (Cl- bullet 4C2H6OS)

Quantity Value Units Method Reference Comment
Deltar14.6kcal/molPHPMSMagnera, Caldwell, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar37.2cal/mol*KPHPMSMagnera, Caldwell, et al., 1984gas phase; M

(Chlorine anion bullet 4Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Chlorine anion bullet 5Dimethyl Sulfoxide)

By formula: (Cl- bullet 4C2H6OS) + C2H6OS = (Cl- bullet 5C2H6OS)

Quantity Value Units Method Reference Comment
Deltar13.8kcal/molPHPMSMagnera, Caldwell, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar40.2cal/mol*KPHPMSMagnera, Caldwell, et al., 1984gas phase; M

(Iodide bullet 2Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Iodide bullet 3Dimethyl Sulfoxide)

By formula: (I- bullet 2C2H6OS) + C2H6OS = (I- bullet 3C2H6OS)

Quantity Value Units Method Reference Comment
Deltar11.6kcal/molPHPMSMagnera, Caldwell, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar25.1cal/mol*KPHPMSMagnera, Caldwell, et al., 1984gas phase; M

(Bromine anion bullet 2Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Bromine anion bullet 3Dimethyl Sulfoxide)

By formula: (Br- bullet 2C2H6OS) + C2H6OS = (Br- bullet 3C2H6OS)

Quantity Value Units Method Reference Comment
Deltar13.6kcal/molPHPMSMagnera, Caldwell, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar27.5cal/mol*KPHPMSMagnera, Caldwell, et al., 1984gas phase; M

(Chlorine anion bullet Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Chlorine anion bullet 2Dimethyl Sulfoxide)

By formula: (Cl- bullet C2H6OS) + C2H6OS = (Cl- bullet 2C2H6OS)

Quantity Value Units Method Reference Comment
Deltar16.0kcal/molPHPMSMagnera, Caldwell, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar23.8cal/mol*KPHPMSMagnera, Caldwell, et al., 1984gas phase; M

(Iodide bullet Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Iodide bullet 2Dimethyl Sulfoxide)

By formula: (I- bullet C2H6OS) + C2H6OS = (I- bullet 2C2H6OS)

Quantity Value Units Method Reference Comment
Deltar12.8kcal/molPHPMSMagnera, Caldwell, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar22.0cal/mol*KPHPMSMagnera, Caldwell, et al., 1984gas phase; M

(Bromine anion bullet Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Bromine anion bullet 2Dimethyl Sulfoxide)

By formula: (Br- bullet C2H6OS) + C2H6OS = (Br- bullet 2C2H6OS)

Quantity Value Units Method Reference Comment
Deltar14.5kcal/molPHPMSMagnera, Caldwell, et al., 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar22.4cal/mol*KPHPMSMagnera, Caldwell, et al., 1984gas phase; M

Sodium ion (1+) + Dimethyl Sulfoxide = (Sodium ion (1+) bullet Dimethyl Sulfoxide)

By formula: Na+ + C2H6OS = (Na+ bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar31.1kcal/molCIDKlassen, Anderson, et al., 1996RCD

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
31.0298.IMREMcMahon and Ohanessian, 2000Anchor alanine=39.89; RCD

(Potassium ion (1+) bullet 2Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) bullet 3Dimethyl Sulfoxide)

By formula: (K+ bullet 2C2H6OS) + C2H6OS = (K+ bullet 3C2H6OS)

Quantity Value Units Method Reference Comment
Deltar20.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar28.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) bullet 3Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) bullet 4Dimethyl Sulfoxide)

By formula: (K+ bullet 3C2H6OS) + C2H6OS = (K+ bullet 4C2H6OS)

Quantity Value Units Method Reference Comment
Deltar16.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar30.cal/mol*KHPMSSunner, 1984gas phase; M

(Potassium ion (1+) bullet Dimethyl Sulfoxide) + Dimethyl Sulfoxide = (Potassium ion (1+) bullet 2Dimethyl Sulfoxide)

By formula: (K+ bullet C2H6OS) + C2H6OS = (K+ bullet 2C2H6OS)

Quantity Value Units Method Reference Comment
Deltar29.kcal/molHPMSSunner, 1984gas phase; M
Quantity Value Units Method Reference Comment
Deltar34.cal/mol*KHPMSSunner, 1984gas phase; M

C7H4N2O2- + Dimethyl Sulfoxide = (C7H4N2O2- bullet Dimethyl Sulfoxide)

By formula: C7H4N2O2- + C2H6OS = (C7H4N2O2- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar16.0kcal/molPHPMSChowdhury, 1987gas phase; M
Quantity Value Units Method Reference Comment
Deltar33.6cal/mol*KPHPMSChowdhury, 1987gas phase; M

C6H4NO3- + Dimethyl Sulfoxide = (C6H4NO3- bullet Dimethyl Sulfoxide)

By formula: C6H4NO3- + C2H6OS = (C6H4NO3- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar7.4 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

C6H4NO3- + Dimethyl Sulfoxide = (C6H4NO3- bullet Dimethyl Sulfoxide)

By formula: C6H4NO3- + C2H6OS = (C6H4NO3- bullet C2H6OS)

Quantity Value Units Method Reference Comment
Deltar5.9 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

1,4-Naphthalenedione anion + Dimethyl Sulfoxide = C12H12O3S-

By formula: C10H6O2- + C2H6OS = C12H12O3S-

Quantity Value Units Method Reference Comment
Deltar5.7 ± 1.6kcal/molIMREChowdhury, Grimsrud, et al., 1987gas phase; Free energy affinity at 70°C.; B

F6S- + Dimethyl Sulfoxide = (F6S- bullet Dimethyl Sulfoxide)

By formula: F6S- + C2H6OS = (F6S- bullet C2H6OS)

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
7.2308.PHPMSKnighton, Zook, et al., 1990gas phase; M

Perfluoro(methylcyclohexane) anion + Dimethyl Sulfoxide = (Perfluoro(methylcyclohexane) anion bullet Dimethyl Sulfoxide)

By formula: C7F14- + C2H6OS = (C7F14- bullet C2H6OS)

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
7.7308.PHPMSKnighton, Zook, et al., 1990gas phase; M

1,4-Naphthalenedione anion + Dimethyl Sulfoxide = (1,4-Naphthalenedione anion bullet Dimethyl Sulfoxide)

By formula: C10H6O2- + C2H6OS = (C10H6O2- bullet C2H6OS)

Free energy of reaction

DeltarG° (kcal/mol) T (K) Method Reference Comment
5.7343.PHPMSChowdhury, 1987gas phase; M

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.

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]

Sieck, 1985
Sieck, L.W., Thermochemistry of Solvation of NO2- and C6H5NO2- by Polar Molecules in the Vapor Phase. Comparison with Cl- and Variation with Ligand Structure., J. Phys. Chem., 1985, 89, 25, 5552, https://doi.org/10.1021/j100271a049 . [all data]

Chowdhury, Grimsrud, et al., 1987
Chowdhury, S.; Grimsrud, E.P.; Kebarle, P., Bonding of Charged Delocalized Anions to Protic and Dipolar Aprotic Solvent Molecules, J. Phys. Chem., 1987, 91, 10, 2551, https://doi.org/10.1021/j100294a021 . [all data]

Chowdhury, 1987
Chowdhury, S. Grimsrud, Bonding of Charge Delocalized Anions to Protic and Dipolar Aprotic Solvents, J. Phys. Chem., 1987, 91, 10, 2551, https://doi.org/10.1021/j100294a021 . [all data]

Magnera, Caldwell, et al., 1984
Magnera, T.F.; Caldwell, G.; Sumner, J.; Ikuta, S.; Kebarle, P., Solvation of the halide anions in dimethyl sulfoxide. Factors involved in enhanced reactivity of negative ions in dipolar aprotic solvents, J. Am. Chem. Soc., 1984, 106, 6140. [all data]

Caldwell, Masucci, et al., 1989
Caldwell, G.W.; Masucci, J.A.; Ikonomou, M.G., Negative Ion Chemical Ionization Mass Spectrometry - Binding of Molecules to Bromide and Iodide Anions, Org. Mass Spectrom., 1989, 24, 1, 8, https://doi.org/10.1002/oms.1210240103 . [all data]

Lau, Saluja, et al., 1980
Lau, Y.K.; Saluja, P.P.S.; Kebarle, P., The Proton in Dimethyl Sulfoxide and Acetone. Results from Gas - Phase Ion Equilibria Involving (Me2SO)nH+ and (Me2CO)nH+, J. Am. Chem. Soc., 1980, 102, 25, 7429, https://doi.org/10.1021/ja00545a004 . [all data]

Sunner, 1984
Sunner, J. Kebarle, Ion - Solvent Molecule Interactions in the Gas Phase. The Potassium Ion and Me2SO, DMA, DMF, and Acetone, J. Am. Chem. Soc., 1984, 106, 21, 6135, https://doi.org/10.1021/ja00333a002 . [all data]

Klassen, Anderson, et al., 1996
Klassen, J.S.; Anderson, S.G.; Blades, A.T.; Kebarle, P., Reaction Enthalpies for M+L = M+ + L, Where M+ = Na+ and K+ and L = Acetamide, N-Methylacetamide, N,N-Dimethylacetamide, Glycine, and Glycylglycine, from Determinations of the Collision-Induced Dissociation Thresholds, J. Phys. Chem., 1996, 100, 33, 14218, https://doi.org/10.1021/jp9608382 . [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]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

McMahon and Ohanessian, 2000
McMahon, T.B.; Ohanessian, G., An Experimental and Ab Initio Study of the Nature of the Binding in Gas-Phase Complexes of Sodium Ions, Chem. Eur. J., 2000, 6, 16, 2931, https://doi.org/10.1002/1521-3765(20000818)6:16<2931::AID-CHEM2931>3.0.CO;2-7 . [all data]

Knighton, Zook, et al., 1990
Knighton, W.B.; Zook, D.R.; Grimsrud, E.P., Cluster-Assisted Decomposition Reactions of the Molecular Anions of SF6 and C7F14, J. Am. Soc. Mass Spectrom., 1990, 1, 5, 372, https://doi.org/10.1016/1044-0305(90)85017-G . [all data]


Notes

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