Dicarbon monoxide

Dicarbon monoxide
	IUPAC name 2-Oxoethenylidene
	Other names Ketenylidene
Identifiers
CAS number	119754-08-4
PubChem	189691
ChemSpider	164756
Jmol-3D images	Image 1
	SMILES [C]=C=O ;
	InChI InChI=1S/C2O/c1-2-3 ; Key: VILAVOFMIJHSJA-UHFFFAOYSA-N InChI=1S/C2O/c1-2-3; Key: VILAVOFMIJHSJA-UHFFFAOYSA-N InChI=1/C2O/c1-2-3; Key: VILAVOFMIJHSJA-UHFFFAOYAI ;
Properties
Molar mass	40.02 g mol−1
	(verify) (what is: /?); Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
	Infobox references

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Dicarbon monoxide (C₂O) is an extremely reactive molecule that contains two carbon atoms and one oxygen atom. Dicarbon monoxide, covalently bonded, is a product of the photolysis of carbon suboxide.^[1]^[2] It is closely related to CO, CO₂ and C₃O₂, and other oxocarbons.

C₃O₂ → CO + C₂O

It is stable enough to observe reactions with NO and NO₂.^[3]

[edit] References

^ Bayes K. (1961). "Photolysis of Carbon Suboxide". Journal of the American Chemical Society 83 (17): 3712–3713. doi:10.1021/ja01478a033.
^ Anderson D. J., Rosenfeld R. N. (1991). "Photodissociation of Carbon Suboxide". Journal of Chemical Physics 94 (12): 7852–7867. doi:10.1063/1.460121.
^ Thweatt W. D., Erickson M. A., Hershberger J. F. (2004). "Kinetics of the CCO+NO and CCO+NO2 reactions". Journal of Physical Chemistry 108 (1): 74–79. doi:10.1021/jp0304125.

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