Thiirane
- Formula: C2H4S
- Molecular weight: 60.118
- IUPAC Standard InChIKey: VOVUARRWDCVURC-UHFFFAOYSA-N
- CAS Registry Number: 420-12-2
- 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: Ethylene sulfide; Ethylene episulfide; Thiacyclopropane; Thiirene, 2,3-dihydro-; 2,3-Dihydrothiirene; Ethylene episulphide; Ethylene sulphide; NSC 89690; epithioethane
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry 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: Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 82.3 ± 1.0 | kJ/mol | N/A | Sunner, 1963 | Value computed using ΔfHliquid° value of 52±1 kj/mol from Sunner, 1963 and ΔvapH° value of 30.3±0.2 kj/mol from missing citation. |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry 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°liquid | 52. ± 1. | kJ/mol | Ccr | Sunner, 1963 | See Sunner, 1962 |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -2012.6 | kJ/mol | Ccr | Sunner, 1963 | See Sunner, 1962 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, 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:
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C2H4S+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 807.4 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 777.6 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.05 | PIPECO | Butler and Baer, 1983 | LBLHLM |
9.04 ± 0.01 | PI | Butler and Baer, 1982 | LBLHLM |
8.9 ± 0.1 | PE | Aue, Webb, et al., 1980 | LLK |
8.9 | PE | Aue and Bowers, 1979 | LLK |
9.00 | PE | Schweig and Thiel, 1973 | LLK |
9.051 ± 0.006 | S | Basco and Morse, 1973 | LLK |
8.87 ± 0.15 | EI | Gallegos and Kiser, 1961 | RDSH |
9.0 | EI | Vorob'ev, Furlei, et al., 1989 | Vertical value; LL |
9.05 | PE | Frost, Herring, et al., 1973 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CHS+ | 11.07 ± 0.04 | CH3 | PI | Butler and Baer, 1982 | T = 298K; LBLHLM |
CHS+ | 11.13 ± 0.04 | CH3 | PI | Butler and Baer, 1982 | T = 0K; LBLHLM |
CHS+ | 12.3 ± 0.2 | CH3 | EI | Gallegos and Kiser, 1961 | RDSH |
CH2+ | 20.4 ± 0.5 | ? | EI | Gallegos and Kiser, 1961 | RDSH |
CH2S+ | 12.7 ± 0.2 | ? | EI | Gallegos and Kiser, 1961 | RDSH |
C2H2+ | 17.9 ± 0.5 | ? | EI | Gallegos and Kiser, 1961 | RDSH |
C2H2S+ | 15.0 ± 0.2 | ? | EI | Gallegos and Kiser, 1961 | RDSH |
C2H3+ | 14.0 | SH | EI | Haney and Franklin, 1968 | RDSH |
C2H3S+ | 10.7 | H | PIPECO | Butler and Baer, 1983 | LBLHLM |
C2H3S+ | 11.4 ± 0.2 | H | EI | Gallegos and Kiser, 1961 | RDSH |
H2S+ | 13.4 | C2H2 | EI | Haney and Franklin, 1968 | RDSH |
H2S+ | 13.4 ± 0.1 | C2H2 | EI | Gallegos and Kiser, 1961 | RDSH |
S+ | 13.1 ± 0.2 | C2H4 | EI | Gallegos and Kiser, 1961 | RDSH |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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.
Sunner, 1963
Sunner, S.,
Corrected heat of combustion and formation values for a number of organic sulphur compounds,
Acta Chem. Scand., 1963, 17, 728-730. [all data]
Sunner, 1962
Sunner, S.,
Corrected heat of combustion and formation values for a number of organic sulphur compounds,
Private communication, 1962, 1-4. [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]
Butler and Baer, 1983
Butler, J.J.; Baer, T.,
A photoionization study of organosulfur ring compounds: Thiirane, thietane and tetrahydrothiophene,
Org. Mass Spectrom., 1983, 18, 248. [all data]
Butler and Baer, 1982
Butler, J.J.; Baer, T.,
Photoionization study of the heat of formation of HCS+,
J. Am. Chem. Soc., 1982, 104, 5016. [all data]
Aue, Webb, et al., 1980
Aue, D.H.; Webb, H.M.; Davidson, W.R.; Vidal, M.; Bowers, M.T.; Goldwhite, H.; Vertal, L.E.; Douglas, J.E.; Kollman, P.A.; Kenyon, G.L.,
Proton affinities photoelectron spectra of three-membered-ring J. Heterocycl. Chem.,
J. Am. Chem. Soc., 1980, 102, 5151. [all data]
Aue and Bowers, 1979
Aue, D.H.; Bowers, M.T.,
Chapter 9. Stabilities of positive ions from equilibrium gas phase basicity measurements
in Ions Chemistry,, ed. M.T. Bowers, 1979. [all data]
Schweig and Thiel, 1973
Schweig, A.; Thiel, W.,
Photoionization cross sections: He I and He II photoelectron spectra of saturated three-membered rings,
Chem. Phys. Lett., 1973, 21, 541. [all data]
Basco and Morse, 1973
Basco, N.; Morse, R.D.,
Analysis of the Rydberg transitions in ethylene sulphide,
Chem. Phys. Lett., 1973, 20, 404. [all data]
Gallegos and Kiser, 1961
Gallegos, E.; Kiser, R.W.,
Electron impact spectroscopy of ethylene sulfide and ethylenimine,
J. Phys. Chem., 1961, 65, 1177. [all data]
Vorob'ev, Furlei, et al., 1989
Vorob'ev, A.S.; Furlei, I.I.; Sultanov, A.S.; Khvostenko, V.I.; Leplyanin, G.V.; Derzhinskii, A.R.; Tolstikov, G.A.,
Mass spectrometry of reasonance capture of electrons and photoelectron spectroscopy of molecules of ethylene oxide, ethylene sulfide, and their derivatives,
Bull. Acad. Sci. USSR, Div. Chem. Sci., 1989, 1388. [all data]
Frost, Herring, et al., 1973
Frost, D.C.; Herring, F.G.; Katrib, A.; McDowell, C.A.,
The photoelectron spectrum of ethylene sulphide,
Chem. Phys. Lett., 1973, 20, 401. [all data]
Haney and Franklin, 1968
Haney, M.A.; Franklin, J.L.,
Correlation of excess energies of electron-impact dissociations with the translational energies of the products,
J.Chem. Phys., 1968, 48, 4093. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy 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 - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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