Cyclobutanetetrone

Cyclobutanetetrone

Skeletal formula of cyclobutanetetrone
Names
IUPAC name Cyclobutane-1,2,3,4-tetraone
Other names Tetraoxocyclobutane
Identifiers
CAS Number	3617-57-0 N
ChemSpider	24735246 Y
Jmol 3D model	Interactive image
InChI InChI=1S/C4O4/c5-1-2(6)4(8)3(1)7 Y Key: KDAVZOLBYGNLGF-UHFFFAOYSA-N Y
SMILES O=C1C(=O)C(=O)C1=O
Properties
Chemical formula	C4O4
Molar mass	112.04 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

Cyclobutanetetrone, also called tetraoxocyclobutane, is an organic compound with formula C₄O₄ or (-(C=O)-)₄, the fourfold ketone of cyclobutane. It would be an oxide of carbon, indeed a tetramer of carbon monoxide.

The compound seems to be thermodynamically unstable. As of 2000, it had yet to be synthesized in significant amounts but may have transient existence as detected by mass spectrometry.

Related compounds

Cyclobutanetetrone can be viewed as the neutral counterpart of the squarate anion C₄O₄²⁻, which is stable and has been known at least since 1959.

The compound octahydroxycyclobutane or cyclobutane-1,1,2,2,3,3,4,4-octaol (-C(OH)₂-)₄ may be referred to in the literature as "hydrated tetraoxocyclobutane".

See also

• Cyclohexanehexone
• Cyclopentanepentone