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Thiirene

Chemical compound From Wikipedia, the free encyclopedia

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]

Quick facts Names, Identifiers ...
Thiirene
Names
Preferred IUPAC name
Thiirene
Systematic IUPAC name
Thiacyclopropene
Other names
Epithioethene
Ethyne sulfide
Acetylene sulfide
Identifiers
3D model (JSmol)
1304471
ChEBI
ChemSpider
239545
  • InChI=1S/C2H2S/c1-2-3-1/h1-2H X markN
    Key: JTQAPFZZCXWQNQ-UHFFFAOYSA-N X markN
  • InChI=1/C2H2S/c1-2-3-1/h1-2H
    Key: JTQAPFZZCXWQNQ-UHFFFAOYAN
  • C1=CS1
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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Thiirenes and derivatives

No thiirene has been isolated at room temperature, but they have been observed spectroscopically at low temperatures.[2]

Thiirene-S-oxides and S-alkylthiirenium salts have been characterized by X-ray crystallography.[3]

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