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Names | |||
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IUPAC name
C2v isomer:
D2d isomer:
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Other names
C2v isomer:
D2d isomer:
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Identifiers | |||
3D model (JSmol)
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PubChem CID
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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).
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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 isovalent carbon tetrasulfide CS4 is also known from inert gas matrix. It has D2d symmetry with the same atomic arrangement as CO4 (D2d).[3]