Gourt Home::Gourt :: Carbon suboxide
| Carbon suboxide | |
|---|---|
| O=C=C=C=O | |
| Molecular formula | C3O2 |
| Molar mass | 68.031 g/mol |
| Appearance | colourless gas |
| Properties | |
| Density | 3.0 kg/m³, gas at 298 K |
| Melting point | −107°C |
| Boiling point | 6.8°C |
| Molecular shape | linear |
| Related compounds | |
| Related oxides | carbon dioxide carbon monoxide dicarbon monoxide |
| Related compounds | carbon subnitride |
| Chemical infobox | |
Carbon suboxide, C3O2, is a colorless but pungent gas, with four cumulative double bonds, making it a cumulene. It is closely related to CO, CO2 and C2O, and other oxides of carbon.
Brodie discovered it in 1873 by submitting electric current to carbon monoxide. The Berthelot created the name carbon suboxide, while Otto Diels later stated that the more organic names dicarbonyl methane and dioxallene were also correct.
It is synthesized by warming a dry mixture of tetraphosphorus decoxide (P4O10) and malonic acid or the esters of malonic acid.
Several other ways for synthesis and reactions of carbon suboxide can be found in a review from 1930 by Reyerson.
References
External links
"Carbon suboxide"