Hexa-cata-hexabenzocoronene
Hexa-cata-hexabenzocoronene is a polycyclic aromatic hydrocarbon with the molecular formula C48H24. It consists of a central coronene molecule, with an additional benzene ring fused onto each ring around the periphery.
Hexa-cata-hexabenzocoronene has a contorted structure due to steric crowding among the benzene rings around the edge, analogous to the situation in Benzophenanthrene|benzophenanthrene.