出典:Wiktionary
出典:『Wiktionary』 (2009/05/09 03:13 UTC 版)
出典:Wikipedia
出典:『Wikipedia』 (2011/04/19 10:41 UTC 版)
Carbon suboxide, or tricarbon dioxide, is an oxide of carbon with chemical formula C3O2 or O=C=C=C=O. Its four cumulative double bonds make it a cumulene. It is one of the stable members of the series of linear oxocarbons O=Cn=O, which also includes carbon dioxide (CO2) and pentacarbon dioxide (C5O2).