Sulfurous acid, dimethyl ester
- Formula: C2H6O3S
- Molecular weight: 110.132
- IUPAC Standard InChIKey: BDUPRNVPXOHWIL-UHFFFAOYSA-N
- CAS Registry Number: 616-42-2
- 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: Dimethyl sulfite; Methyl sulfite; Sulphurous acid dimethyl ester; Dimethyl sulphite; (CH3O)2SO; Dimethoxy sulfoxide; Dimethyl ester of sulfurous acid
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -483. ± 2. | kJ/mol | Ccb | Mackle and Steele, 1969 |
Condensed 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°liquid | -523.3 ± 1.0 | kJ/mol | Ccb | Mackle and Steele, 1969 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1723.2 ± 0.96 | kJ/mol | Ccb | Mackle and Steele, 1969 | Reanalyzed by Cox and Pilcher, 1970, Original value = -1719.5 ± 0.96 kJ/mol |
Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 399. ± 2. | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 40. ± 2. | kJ/mol | E | Mackle and Steele, 1969 | ALS |
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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.9 | PE | Bock and Solouki, 1974 | LLK |
10.25 | PE | Bock and Solouki, 1974 | Vertical value; LLK |
10.25 | PE | Bock and Solouki, 1972 | Vertical value; LLK |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Mackle and Steele, 1969
Mackle, H.; Steele, W.V.,
Studies in the thermochemistry of organic sulphites and sulphates. Part 1.-Heats of combustion and formation of some dialkyl sulphites and sulphates,
Trans. Faraday Soc., 1969, 65, 2053-2059. [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]
Bock and Solouki, 1974
Bock, H.; Solouki, B.,
Photoelektronenspektren und molekuleigenschaften, XXXV. Sulfoxide X2SO - beispiele fur den nutzen von korrelations - diagrammen bei der diskussion von substituenteneffekten und von geometrischen storungen,
Chem. Ber., 1974, 107, 2299. [all data]
Bock and Solouki, 1972
Bock, H.; Solouki, B.,
The sulfoxide bond,
Angew. Chem. Int. Ed. Engl., 1972, 11, 436. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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