Thiirene is an organosulfur compound with the formula C2H2S. It can be viewed as a derivative of cyclopropene, but with the methylene group replaced by sulfur. It is antiaromatic and very labile.[1]
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Preferred IUPAC name
Thiirene | |
Systematic IUPAC name
Thiacyclopropene | |
Other names
Epithioethene
Ethyne sulfide Acetylene sulfide | |
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1304471 | |
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239545 | |
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Properties | |
C2H2S | |
Molar mass | 58.10228 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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No thiirene has been isolated at room temperature, but they have been observed spectroscopically at low temperatures.[2]
Thiirene-S-oxides and S-alkylthiirinium salts have been characterized by X-ray crystallography.[3]