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, Mass spectrum (electron ionization), 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 (atm) | Reference | Comment |
---|---|---|---|
420.2 | 0.993 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
10.1 | 378. | N/A | Dykyj, Svoboda, et al., 1999 | Based on data from 342. to 411. K.; AC |
10.7 | 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, Mass spectrum (electron ionization), 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 |
Mass spectrum (electron ionization)
Go To: Top, Phase change 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
NIST MS number | 1323 |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), 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, Mass spectrum (electron ionization), 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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