Cyclopropanetrione

Cyclopropanetrione
Names
IUPAC name
cyclopropane-1,2,3-trione
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/C3O3/c4-1-2(5)3(1)6
    Key: RONYDRNIQQTADL-UHFFFAOYSA-N
  • InChI=1/C3O3/c4-1-2(5)3(1)6
    Key: RONYDRNIQQTADL-UHFFFAOYAP
  • O=C1C(=O)C1=O
Properties
C3O3
Molar mass 84.03 g/mol
Related compounds
Related compounds
 deltic acid oxopropandial
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Cyclopropanetrione or trioxocyclopropane is a little-known oxide of carbon with formula C3O3. It consists of a ring of three carbon atoms each attached to an oxygen atom with a double bond. Alternately, it can be thought as a trimer of carbon monoxide. This compound is predicted to be thermodynamically unstable, dissociating to carbon monoxide, and has not been produced in bulk. However, C3O3 molecules, provisionally assigned to either cyclopropanetrione or its open-chain analog •(CO)3•, have been detected using mass spectrometry.

It is the neutral equivalent of the deltate anion C3O32−, known since 1975. An equivalent hydrate hexahydroxycyclopropane or cyclopropane-1,1,2,2,3,3-hexol, (-C(OH)2-)3 also exists. This contains geminal hydroxy groups.

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