Methanethioamide, N,N-dimethyl-
- Formula: C3H7NS
- Molecular weight: 89.159
- IUPAC Standard InChIKey: SKECXRFZFFAANN-UHFFFAOYSA-N
- CAS Registry Number: 758-16-7
- 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: Formamide, N,N-dimethylthio-; Dimethylthioformamide; N,N-Dimethylthioformamide; HCSN(CH3)2; N,N-Dimethylmethanethioamide; N,N-dimethylthioforamide
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Phase change data
Go To: Top, Gas phase ion energetics data, IR Spectrum, Gas Chromatography, 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: Robert L. Brown and Stephen E. Stein
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference |
---|---|---|
389. to 391. | 0.036 | Frinton Laboratories Inc., 1986 |
Gas phase ion energetics data
Go To: Top, Phase change data, IR Spectrum, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 216.6 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 209.2 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.16 | PE | Mines and Thompson, 1975 | LLK |
8.2 | PE | Henriksen, Isaksson, et al., 1981 | Vertical value; LLK |
8.2 | PE | Guimon, Gonbeau, et al., 1974 | Vertical value; LLK |
De-protonation reactions
C3H6NS- + =
By formula: C3H6NS- + H+ = C3H7NS
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 379.4 ± 2.1 | kcal/mol | G+TS | Ingemann and Nibbering, 1985 | gas phase; value altered from reference due to change in acidity scale; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 372.3 ± 2.0 | kcal/mol | IMRE | Ingemann and Nibbering, 1985 | gas phase; value altered from reference due to change in acidity scale; B |
IR Spectrum
Go To: Top, Phase change data, Gas phase ion energetics data, Gas Chromatography, 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
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 |
Gas Chromatography
Go To: Top, Phase change 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
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Supelcowax-10 | 1829. | 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 |
Capillary | Supelcowax-10 | 1829. | Chung, Yung, et al., 2001 | 60. m/0.25 mm/0.25 μm, He, 35. C @ 5. min, 2. K/min, 195. C @ 90. min |
References
Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Frinton Laboratories Inc., 1986
Frinton Laboratories Inc.,
Catalog Number 11, Frinton Laboratories Inc., Vineland, NJ, 1986, 99. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Mines and Thompson, 1975
Mines, G.W.; Thompson, H.W.,
The photoelectron spectra of amides, thioamides, ureas and thioureas,
Spectrochim. Acta, 1975, 31, 137. [all data]
Henriksen, Isaksson, et al., 1981
Henriksen, L.; Isaksson, R.; Liljefors, T.; Sandstrom, J.,
Ultraviolet absorption and photoelectron spectra of some cyclic and open-chain mono- and dithiooxamides,
Acta Chem. Scand., Ser. B, 1981, 35, 489. [all data]
Guimon, Gonbeau, et al., 1974
Guimon, C.; Gonbeau, D.; Pfister-Guillouzo, G.; Asbrink, L.; Sandstrom, J.,
Electronic structure of sulphur compounds. VI. Photoelectron spectra of some simple thiocarbonyl compounds,
J. Electron Spectrosc. Relat. Phenom., 1974, 4, 49. [all data]
Ingemann and Nibbering, 1985
Ingemann, S.; Nibbering, N.M.M.,
Gas phase chemistry of dipole stabilized carbanions derived from N,N-dimethylthioformamide and N,N-dimethylnitrosamine,
Acta Chem. Scand., Ser. B, 1985, 39, 697. [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]
Chung, Yung, et al., 2001
Chung, H.Y.; Yung, I.K.S.; Kim, J.-S.,
Comparison of volatile components in dried scallops (Chlamys farreri and Patinopecten yessoensis) prepared by boiling and steaming methods,
J. Agric. Food Chem., 2001, 49, 1, 192-202, https://doi.org/10.1021/jf000692a
. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Gas Chromatography, References
- Symbols used in this document:
Tboil Boiling point 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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