Thiirane, methyl-
- Formula: C3H6S
- Molecular weight: 74.145
- IUPAC Standard InChIKey: MBNVSWHUJDDZRH-UHFFFAOYSA-N
- CAS Registry Number: 1072-43-1
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: Propane, 1,2-epithio-; Propene sulfide; Propylene episulfide; Propylene sulfide; 1,2-Epithiopropane; Methylthiirane; Thiirane, 2-methyl-; 2-Methylthiacyclopropane; 2-Methylthiirane; Propylene sulphide; NSC 36643; NSC 48100
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Gas phase thermochemistry data
Go To: Top, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 11. ± 1. | kJ/mol | Ccr | Sunner, 1963 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
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 C3H6S+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 833.3 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 801.5 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.85 | PI | Traeger, 1984 | LBLHLM |
8.7 | PE | Aue and Bowers, 1979 | LLK |
8.6 ± 0.2 | EI | Hobrock and Kiser, 1962 | RDSH |
8.88 | PE | McAlduff and Houk, 1977 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CHS+ | 14.1 ± 0.2 | ? | EI | Hobrock and Kiser, 1962 | RDSH |
CH2S+ | 12.4 ± 0.3 | ? | EI | Hobrock and Kiser, 1962 | RDSH |
CH3+ | 18.1 ± 0.4 | ? | EI | Hobrock and Kiser, 1962 | RDSH |
CH3S+ | 13.5 ± 0.2 | ? | EI | Hobrock and Kiser, 1962 | RDSH |
C2H2+ | 17.7 ± 0.4 | ? | I | Hobrock and Kiser, 1962 | RDSH |
C2H2S+ | 15.6 ± 0.4 | ? | EI | Hobrock and Kiser, 1962 | RDSH |
C2H3+ | 17.2 ± 0.3 | ? | EI | Hobrock and Kiser, 1962 | RDSH |
C2H3S+ | 12.3 ± 0.3 | ? | EI | Hobrock and Kiser, 1962 | RDSH |
C3H+ | 22.2 ± 0.5 | ? | EI | Hobrock and Kiser, 1962 | RDSH |
C3H2+ | 19.2 ± 0.4 | ? | EI | Hobrock and Kiser, 1962 | RDSH |
C3H3+ | 15.9 ± 0.2 | ? | EI | Hobrock and Kiser, 1962 | RDSH |
C3H4+ | 14.4 ± 0.3 | ? | EI | Hobrock and Kiser, 1962 | RDSH |
C3H5+ | 10.66 | SH | PI | Traeger, 1984 | LBLHLM |
C3H5+ | 11.5 ± 0.2 | SH? | EI | Hobrock and Kiser, 1962 | RDSH |
C3H5S+ | 11.2 ± 0.3 | H | EI | Hobrock and Kiser, 1962 | RDSH |
IR Spectrum
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: Coblentz Society, Inc.
Condensed Phase Spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
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Owner | COPYRIGHT (C) 1988 by COBLENTZ SOCIETY INC. Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | DOW CHEMICAL COMPANY |
Source reference | COBLENTZ NO. 5647 |
Date | 1964/11/12 |
Name(s) | 2-methylthiirane |
State | SOLUTION (10% CCl4 FOR 2.6-7.5, 10% CS2 FOR 7.5-26) |
Instrument | DOW KBr FOREPRISM-GRATING SPECTRAL CONTAMINATIONS DUE TO CS2 AROUND 400, AND CCl4 AROUND 1550 CM-1 HAVE BEEN SUBTRACTED |
Instrument parameters | BLAZED AT 3.5, 12.0, 20.0 AND CHANGED AT 5.0, 7.5, 14.9 MICRON |
Path length | 0.011 CM, 0.011 CM |
Resolution | 2 |
Sampling procedure | TRANSMISSION |
Data processing | DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, IR Spectrum, 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]
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]
Traeger, 1984
Traeger, J.C.,
Heat of formation for the SH radical by photoionization mass spectrometry,
Org. Mass Spectrom., 1984, 19, 514. [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]
Hobrock and Kiser, 1962
Hobrock, B.G.; Kiser, R.W.,
Electron impact spectroscopy of propylene sulfide,
J. Phys. Chem., 1962, 66, 1551. [all data]
McAlduff and Houk, 1977
McAlduff, E.J.; Houk, K.N.,
Photoelectron spectra of substituted oxiranes and thiiranes. Substituent effects on ionization potentials involving σ orbitals,
Can. J. Chem., 1977, 55, 318. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, IR Spectrum, References
- Symbols used in this document:
AE Appearance energy ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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