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Title: 1,3,5-Trioxanetrione  
Author: World Heritage Encyclopedia
Language: English
Subject: 1,3-Dioxetanedione, Tetracarbon dioxide
Publisher: World Heritage Encyclopedia


Molecular formula C3O6
Molar mass 132.03 g mol−1

The chemical compound 1,3,5-trioxanetrione, or 1,3,5-trioxacyclohexane-2,4,6-trione is a hypothetical oxide of carbon with formula C3O6. It can be considered a cyclic trimer of carbon dioxide (CO2) or as a triple ketone of 1,3,5-trioxane (1,3,5-trioxacyclohexane).

Theoretical calculations indicate that the compound is unstable at room temperature (half-life less than 8 seconds); but may be stable at -196 °C.[1]


  1. ^ Errol Lewars (1996), Polymers and oligomers of carbon dioxide: ab initio and semiempirical calculations. Journal of Molecular Structure: THEOCHEM, Volume 363, Number 1, pp. 1–15.

