Pentacarbon dioxide
From Infogalactic: the planetary knowledge core
| Full structural formula of pentacarbon dioxide | |
| Space-filling model of the pentacarbon dioxide molecule | |
| Names | |
|---|---|
| IUPAC name
penta-1,2,3,4-tetraene-1,5-dione
|
|
| Identifiers | |
51799-36-1  |
|
| ChemSpider | 454765  |
| Jmol 3D model | Interactive image |
| PubChem | 521350 |
|
|
|
|
| Properties | |
| C5O2 | |
| Molar mass | 92.05 g/mol |
| Vapor pressure | {{{value}}} |
|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
|
 verify (what is ?) |
|
| Infobox references | |
Pentacarbon dioxide, officially penta-1,2,3,4-tetraene-1,5-dione, is an oxide of carbon (an oxocarbon) with formula C5O2 or O=C=C=C=C=C=O.
The compound is the third member of the series CnO2 with odd n, the first two members being carbon dioxide (CO2) and carbon suboxide (C3O2). The compound was described in 1988 by G. Maier and others, who obtained it by pyrolysis of 1,3,5-cyclohexanetrione (phloroglucin, the tautomeric form of phloroglucinol).[1] It has also been obtained by flash vapor pyrolysis of 2,4,6-tris(diazo)cyclohexane-1,3,5-trione (C6N6O3).[2]:p.97 It is stable at room temperature in solution.[1] The pure compound is stable up to −96 °C, when it polymerizes.[2]
References
See also
- Ethylene dione (C2O2)
