Tricarbon monoxide

Tricarbon monoxide
Names
	Preferred IUPAC name 3-Oxopropa-1,2-dien-1-ylidene
	Other names 3-Oxopropadienylidene
Identifiers
CAS Number	11127-17-6 ;
3D model (JSmol)	Interactive image;
PubChem CID	101860484;
CompTox Dashboard (EPA)	DTXSID301336916 ;
	InChI InChI=1S/C3O/c1-2-3-4 Key: ZCNKODXATWVMAO-UHFFFAOYSA-N;
	SMILES [C-]#CC#[O+];
Properties
Chemical formula	C3O
Molar mass	52.032 g·mol−1
Appearance	Gas
Related compounds
Related oxides	carbon monoxide; dicarbon monoxide; tetracarbon monoxide
Related compounds	tricarbon monosulfide; carbon subnitride; HCCCO
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Tricarbon monoxide C₃O is a reactive radical oxocarbon molecule found in space, and which can be made as a transient substance in the laboratory. It can be trapped in an inert gas matrix or made as a short lived gas. C₃O can be classified as a ketene or an oxocumulene a kind of heterocumulene.^[3]

^ Brown, Ronald D.; Rice, E. H. (October 1984). "Tricarbon monoxide – a theoretical study". Journal of the American Chemical Society. 106 (22): 6475–6478. doi:10.1021/ja00334a002.
^ Cooksy, A. L.; Watson, J. K. G.; Gottlieb, C. A.; Thaddeus, P. (February 1992). "The rotational spectrum of the carbon chain radical HCCCO". The Astrophysical Journal. 386: L27. Bibcode:1992ApJ...386L..27C. doi:10.1086/186284.
^ Ruppel, Raimund (1999). "Neue Heterokumulene und Carbene" (PDF) (in German). Gießen: Justus-Liebig-Universität: 13. Retrieved 10 November 2016. {{cite journal}}: Cite journal requires |journal= (help)

[1] Brown, Ronald D.; Rice, E. H. (October 1984). "Tricarbon monoxide – a theoretical study". Journal of the American Chemical Society. 106 (22): 6475–6478. doi:10.1021/ja00334a002.

[2] Cooksy, A. L.; Watson, J. K. G.; Gottlieb, C. A.; Thaddeus, P. (February 1992). "The rotational spectrum of the carbon chain radical HCCCO". The Astrophysical Journal. 386: L27. Bibcode:1992ApJ...386L..27C. doi:10.1086/186284.

[rup-3] Ruppel, Raimund (1999). "Neue Heterokumulene und Carbene" (PDF) (in German). Gießen: Justus-Liebig-Universität: 13. Retrieved 10 November 2016. {{cite journal}}: Cite journal requires |journal= (help)

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