Heptalene

Heptalene is a polycyclic hydrocarbon with chemical formula C₁₂H₁₀, composed of two fused cycloheptatriene rings. It is an unstable, non-planar compound which is non-aromatic.^[1][2] The dianion, however, satisfies Hückel's rule, is thermally stable, and is planar.^[3]

Heptalene

Skeletal formula
Ball-and-stick model
Names
Preferred IUPAC name Heptalene
Identifiers
CAS Number	257-24-9 Y
3D model (JSmol)	Interactive image
ChemSpider	4574193 Y
PubChem CID	5460725
UNII	MJX2GL6N86 Y
CompTox Dashboard (EPA)	DTXSID10420114
InChI InChI=1S/C12H10/c1-3-7-11-9-5-2-6-10-12(11)8-4-1/h1-10H N Key: DDTGNKBZWQHIEH-UHFFFAOYSA-N N InChI=1/C12H10/c1-3-7-11-9-5-2-6-10-12(11)8-4-1/h1-10H Key: DDTGNKBZWQHIEH-UHFFFAOYAV
SMILES C1=CC=C2C=CC=CC=C2C=C1
Properties
Chemical formula	C12H10
Molar mass	154.212 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

See also

• Benzocyclooctatetraene