Names | |
---|---|
Preferred IUPAC name
Hexadehydrobenzene | |
Identifiers | |
3D model (JSmol)
|
|
PubChem CID
|
|
CompTox Dashboard (EPA)
|
|
| |
| |
Properties | |
C6 | |
Molar mass | 72.066 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
Benzotriyne or cyclo[6]carbon is a hypothetical compound, an allotrope of carbon with molecular formula C6. The molecule is a ring of six carbon atoms, connected by alternating triple and single bonds.[1] It is, therefore, a potential member of the cyclo[n]carbon family.
There have been a few attempts to synthesize benzotriyne, e.g. by pyrolysis of mellitic anhydride,[2] but without success as of 2011[update]. Calculations suggest that the alternative cyclic cumulene structure, called cyclohexahexaene, is the potential energy minimum of the cyclo[6]carbon framework. It is unclear whether this second structure is an isomer or a limiting resonance structure.[3]