Abstract: Ariana Hall
Mentor: Dr. Mallory
[n]Phenacenes, or graphene ribbons, are molecules containing [n] aromatic rings fused in a zigzag pattern. Pseudo one-dimensional graphene ribbons are similar to pseudo two-dimensional graphene sheets, so they may have similar conductive properties; because of this, they could potentially be used as molecular-scale wires. The longest [n]phenacene synthesized by the Mallory group had eleven rings. This experiment will attempt to synthesize a phenacene. Because longer [n]phenacenes are very insoluble, four solubilizing alkyl groups are also attached to the molecule.
The synthesis scheme involves a sequence of reactions, including Grignard, Horner-Emmons, bromination and photocyclization reactions.