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Names | |||
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IUPAC name
2-Oxoethenylidene
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Other names
Ketenylidene
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Identifiers | |||
3D model (JSmol)
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ChemSpider |
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |||
C2O | |||
Molar mass | 40.021 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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Dicarbon monoxide (C2O) is a molecule that contains two carbon atoms and one oxygen atom. It is a linear molecule that, because of its simplicity, is of interest in a variety of areas. It is, however, so extremely reactive that it is not encountered in everyday life. It is classified as a carbene, cumulene and an oxocarbon.[1]
Dicarbon monoxide is a product of the photolysis of carbon suboxide:[2][3]
It is stable enough to observe reactions with NO and NO2.[4]
Called ketenylidene in organometallic chemistry, it is a ligand observed in metal carbonyl clusters, e.g. [OC2Co3(CO)9]+. Ketenylidenes are proposed as intermediates in the chain growth mechanism of the Fischer-Tropsch Process, which converts carbon monoxide and hydrogen to hydrocarbon fuels.[5]
The organophosphorus compound (C6H5)3PCCO (CAS# 15596-07-3) contains the C2O functionality. Sometimes called Bestmann's Ylide, it is a yellow solid.[6]
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Compounds derived from oxides |