Benzene, 1-methyl-4-(methylsulfonyl)-
- Formula: C8H10O2S
- Molecular weight: 170.229
- IUPAC Standard InChIKey: YYDNBUBMBZRNQQ-UHFFFAOYSA-N
- CAS Registry Number: 3185-99-7
- 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: Sulfone, methyl p-tolyl; p-Tolyl methyl sulfone; Methyl p-tolyl sulfone; 1-Methyl-4-(methyl-sulphonyl)benzene; Methyl p-tolyl sulphone; Methyl 4-tolyl sulfone; 1-Methansulfonyl-4-methylbenzene; (p-Tolylsulfonyl)methane; NSC 2722; NSC 29038; p-(methylsulphonyl)toluene
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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 | -65.27 ± 0.82 | kcal/mol | Ccr | Mackle and O'Hare, 1961 | Reanalyzed by Cox and Pilcher, 1970, Original value = -71.8 ± 0.6 kcal/mol; Haet of combustion corrected for pressure |
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 | -89.17 ± 0.19 | kcal/mol | Ccr | Mackle and O'Hare, 1961 | Reanalyzed by Cox and Pilcher, 1970, Original value = -92.4 ± 0.2 kcal/mol; Haet of combustion corrected for pressure |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1148.77 ± 0.13 | kcal/mol | Ccr | Mackle and O'Hare, 1961 | Reanalyzed by Cox and Pilcher, 1970, Original value = -1145.47 ± 0.06 kcal/mol; Haet of combustion corrected for pressure |
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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔvapH° | 21.6 ± 0.5 | kcal/mol | V | Mackle and O'Hare, 1961 | Haet of combustion corrected for pressure |
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
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
C8H9O2S- + =
By formula: C8H9O2S- + H+ = C8H10O2S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 358.8 ± 2.1 | kcal/mol | G+TS | Taft and Topsom, 1987 | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 352.1 ± 2.0 | kcal/mol | IMRE | Taft and Topsom, 1987 | gas phase; value altered from reference due to change in acidity scale; B |
By formula: Li+ + C8H10O2S = (Li+ • C8H10O2S)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 51.7 | 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 by: John E. Bartmess
De-protonation reactions
C8H9O2S- + =
By formula: C8H9O2S- + H+ = C8H10O2S
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 358.8 ± 2.1 | kcal/mol | G+TS | Taft and Topsom, 1987 | gas phase; value altered from reference due to change in acidity scale |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 352.1 ± 2.0 | kcal/mol | IMRE | Taft and Topsom, 1987 | gas phase; value altered from reference due to change in acidity scale |
IR Spectrum
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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
Gas Phase Spectrum
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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | SRD/NIST Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | EPA-IR VAPOR PHASE LIBRARY |
State | gas |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
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 | Japan AIST/NIMC Database- Spectrum MS-NW-7670 |
NIST MS number | 236578 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Mackle and O'Hare, 1961
Mackle, H.; O'Hare, P.A.G.,
Studies in the thermochemistry of sulphones. Part 6 - Heats of combustion, fusion, vaporization and atomization of six aromatic and two allylic sulphones,
Trans. Faraday Soc., 1961, 57, 1521-1526. [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]
Taft and Topsom, 1987
Taft, R.W.; Topsom, R.D.,
The Nature and Analysis of Substituent Effects,
Prog. Phys. Org. Chem., 1987, 16, 1. [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]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
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 ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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