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File:Acenes general structure.svg
The general structural formula for acenes

Acenes or polyacenes is a class of organic compounds and polycyclic aromatic hydrocarbons made up of linear fused benzene rings. The larger representatives have potential interest in electronic applications and are actively researched in chemistry. Very large polyacenes are used in a class of supercapacitors called polyacene batteries.

Its members to date are:

the last member heptacene, is very reactive and has only been isolated in a matrix.

Related compounds

A related group of compounds with 1,2-fused rings and with helical not linear structures are the helicenes. Polyquinanes and quinenes are fused cyclopentane rings.