Triafulvalene

Triafulvalene or cyclopropenylidenecyclopropene is a fulvalene hydrocarbon with chemical formula C₆H₄, composed of two linked cyclopropene rings. Triafulvalene has never been isolated,^[1] since it can decompose via an isodesmic reaction.^[2] However, its structure,^[3] stability, and spectral properties are well-studied theoretically;^{[citation needed]} the molecule is believed planar.^[3]

Triafulvalene

Names
Preferred IUPAC name [1,1′-Bi(cyclopropylidene)]-2,2′-diene
Other names 1,1′-Bi(cycloprop-2-en-1-ylidene)
Identifiers
CAS Number	1608-08-8 Y
3D model (JSmol)	Interactive image
ChemSpider	35807295
PubChem CID	86179345
CompTox Dashboard (EPA)	DTXSID201032864
InChI InChI=1S/C6H4/c1-2-5(1)6-3-4-6/h1-4H Key: MRCIUZQRSIHAMG-UHFFFAOYSA-N
SMILES C=1C(C=1)=C2C=C2
Properties
Chemical formula	C6H4
Molar mass	76.098 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

See also

• Calicene
• Fulvalene
• Sesquifulvalene