Carbon tetroxide

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Carbon tetroxide
Names
IUPAC name
C2v isomer:
  • 1,2,3-Trioxetan-4-one
  • Oxygen carbonate
  • Monooxygen carbonate

D2d isomer:

  • Carbon diperoxide
Other names
C2v isomer:
  • 4-Trioxetanone
  • Trioxetan-4-one

D2d isomer:

  • 1,2,4,5-Tetraoxaspiro[2.2]pentane
Identifiers
3D model (
JSmol
)
  • InChI=1S/CO4/c2-1-3-5-4-1
    Key: ITOJEBDYSWRTML-UHFFFAOYSA-N
  • O=C1OOO1
Properties
CO4
Molar mass 76.007 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Carbon tetroxide or Oxygen carbonate (in its C2v isomer) is a highly unstable oxide of carbon with formula CO
4. It was proposed as an intermediate in the O-atom exchange between carbon dioxide (CO
2) and oxygen (O
2) at high temperatures.[1] The C2v isomer, which is 138 kJ mol−1 more stable than the D2d isomer, was first detected in electron-irradiated ices of carbon dioxide via infrared spectroscopy.[2]

The D2d isomer of carbon tetroxide

The isovalent carbon tetrasulfide CS4 is also known from inert gas matrix. It has D2d symmetry with the same atomic arrangement as CO4 (D2d).[3]

References

  1. PMID 19743846
    .
  2. doi:10.1016/j.cplett.2007.04.043
    .
  3. doi:10.1016/j.cplett.2013.05.039
    .


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