1,4-Oxathiane
- Formula: C4H8OS
- Molecular weight: 104.171
- IUPAC Standard InChIKey: JBYHSSAVUBIJMK-UHFFFAOYSA-N
- CAS Registry Number: 15980-15-1
- 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: p-Thioxane; 1-Oxa-4-thiacyclohexane; 1,4-Oxathiin, 2,3,5,6-tetrahydro-; 1,4-Thioxane; Oxathiane; 1-Thia-4-oxacyclohexane; NSC 49179
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Phase change data
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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 251.5 | K | N/A | Anonymous, 1957 | Uncertainty assigned by TRC = 0.6 K; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
420.2 | 1.01 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
42.1 | 378. | N/A | Dykyj, Svoboda, et al., 1999 | Based on data from 342. to 411. K.; AC |
44.8 | 357. | A | Stephenson and Malanowski, 1987 | Based on data from 342. to 411. K.; AC |
Gas phase ion energetics data
Go To: Top, Phase change 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 as indicated in comments:
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 C4H8OS+ (ion structure unspecified)
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.8 ± 0.05 | EI | Conde-Caprace and Collin, 1969 | RDSH |
8.67 | PE | Sweigart and Turner, 1972 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CHS+ | 14.1 | ? | EI | Conde-Caprace and Collin, 1969 | RDSH |
CH2S+ | 12.2 ± 0.3 | ? | EI | Conde-Caprace and Collin, 1969 | RDSH |
CH3S+ | 12.6 | ? | EI | Conde-Caprace and Collin, 1969 | RDSH |
C2H3S+ | 12.6 | ? | EI | Conde-Caprace and Collin, 1969 | RDSH |
C2H4OS+ | 10.2 ± 0.2 | C2H4 | EI | Conde-Caprace and Collin, 1969 | RDSH |
C2H4S+ | 10.4 ± 0.3 | ? | EI | Conde-Caprace and Collin, 1969 | RDSH |
C2H5S+ | 10.3 ± 0.2 | ? | EI | Conde-Caprace and Collin, 1969 | RDSH |
C3H6S+ | 11. ± 0.1 | ? | EI | Conde-Caprace and Collin, 1969 | RDSH |
C4H6S+ | 9.9 ± 0.1 | H2O | EI | Conde-Caprace and Collin, 1969 | RDSH |
References
Go To: Top, Phase change 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.
Anonymous, 1957
Anonymous, R.,
, Am. Pet. Inst. Res. Proj. 6, Carnegie-Mellon Univ., 1957. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R.,
Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Conde-Caprace and Collin, 1969
Conde-Caprace, G.; Collin, J.E.,
Ionization and dissociation of cyclic ethers and thioethers by electronimpact. A comparison between 1,4 dioxane, 1,4 dithiane and 1,4 oxathiane,
Org. Mass Spectrom., 1969, 2, 1277. [all data]
Sweigart and Turner, 1972
Sweigart, D.A.; Turner, D.W.,
Lone pair orbitals and their interactions studied by photoelectron spectroscopy. II. Equivalent orbitals in saturated oxygen and sulfur J. Heterocycl. Chem.,
J. Am. Chem. Soc., 1972, 94, 5599. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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