2,5-Dihydro-3,4-dimethylthiophen-2-one
- Formula: C6H8OS
- Molecular weight: 128.192
- IUPAC Standard InChI: InChI=1S/C6H8OS/c1-4-3-8-6(7)5(4)2/h3H2,1-2H3
- IUPAC Standard InChIKey: IXXRQTNARJNVHF-UHFFFAOYSA-N
- CAS Registry Number: 33922-75-7
- 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: 2,5-Dihydrothiophen-2-one, 3,4-dimethyl; 2(5H)-Thiophenone,3,4-dimethyl-
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Gas phase ion energetics data
Go To: Top, 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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference |
|---|---|---|
| 9.44 ± 0.05 | EI | Thorstad, Undheim, et al., 1975 |
Gas Chromatography
Go To: Top, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Van Den Dool and Kratz RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | OV-1 | 1200. | Schreyen, Dirinck, et al., 1976 | 1. K/min; Column length: 183. m; Column diameter: 0.762 mm; Tstart: 0. C; Tend: 230. C |
| Capillary | OV-1 | 1193. | Schreyen, Dirinck, et al., 1976, 2 | N2, 1. K/min; Column length: 183. m; Tstart: 0. C; Tend: 230. C |
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-5MS | 1217. | Zoghbi, Andrade, et al., 2002 | 30. m/0.25 mm/0.25 μm, He, 3. K/min; Tstart: 60. C; Tend: 270. C |
References
Go To: Top, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Thorstad, Undheim, et al., 1975
Thorstad, O.; Undheim, K.; Cederlund, B.; Hornfeldt, A.-B.,
Ionisation potentials in tautomeric analysis of 2-hydroxy derivatives of thiophenes, selenophenes, and furans,
Acta Chem. Scand. Ser. B:, 1975, 29, 647. [all data]
Schreyen, Dirinck, et al., 1976
Schreyen, L.; Dirinck, P.; van Wassenhove, F.; Schamp, N.,
Analysis of leek volatiles by headspace condensation,
J. Agric. Food Chem., 1976, 24, 6, 1147-1152, https://doi.org/10.1021/jf60208a023
. [all data]
Schreyen, Dirinck, et al., 1976, 2
Schreyen, L.; Dirinck, P.; van Wassenhove, F.; Schamp, N.,
Volatile flavor components of leek,
J. Agric. Food Chem., 1976, 24, 2, 336-341, https://doi.org/10.1021/jf60204a056
. [all data]
Zoghbi, Andrade, et al., 2002
Zoghbi, M.G.B.; Andrade, E.H.A.; Maia, J.G.S.,
Volatile constituents from Adenocalymma alliaceum Miers and Petiveria alliacea L., two medicinal herbs of the Amazon,
Flavour Fragr. J., 2002, 17, 2, 133-135, https://doi.org/10.1002/ffj.1051
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Gas Chromatography, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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