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1,3-Dioxetanedione

Names
Preferred IUPAC name 1,3-Dioxetane-2,4-dione
Other names Dicarbonic anhydride
Identifiers
3D model (JSmol)	Interactive image
ChemSpider	65322075
PubChem CID	17801328
CompTox Dashboard (EPA)	DTXSID201028554
InChI InChI=1S/C2O4/c3-1-5-2(4)6-1Key: IUPJSFOHUQGEDR-UHFFFAOYSA-N
SMILES O=C1OC(=O)O1
Properties
Chemical formula	C2O4
Molar mass	88.018 g·mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). N verify (what is  ?) Infobox references

The chemical compound 1,3-dioxetanedione, or 1,3-dioxacyclobutane-2,4-dione, also known as dicarbonic anhydride, is a hypothetical oxide of carbon with formula C₂O₄. It can be considered a cyclic dimer of carbon dioxide (CO₂) or as a double ketone of 1,3-dioxetane (1,3-dioxacyclobutane).

Theoretical calculations indicate that the compound would be extremely unstable at room temperature (half-life of less than 1.1 μs) but may be stable at −196 °C.

References

1. "CID 17801328 - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 4 December 2007. Identification and Related Records. Retrieved 7 October 2011.
2. 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.

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