Biphenylen
Biphenylen, sometimes spelled biphenylene, is a polycyclic aromatic hydrocarbon with the formula C12H8. It comprises two benzene rings fused to a central four-membered ring, creating a compact, fused-ring system. The central four-membered unit introduces ring strain into the otherwise benzenoid framework and influences the molecule’s electronic properties.
Structure and reactivity: The fused arrangement of a cyclobutadiene-like ring with benzene rings gives biphenylen distinct
Occurrence and synthesis: Biphenylen is not produced in large quantities and is typically encountered only in
Properties and applications: In typical laboratory settings, biphenylen is handled under inert conditions and relatively low
See also: biphenylene, polycyclic aromatic hydrocarbons, aromaticity.