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Graphene nanoribbons (GNRs) are promising in organic optoelectronic materials, and their properties largely depend on the size, edge, and conformation. Herein, the fully armchair‐edged GNRs (AGNRs) with lengths up to 2.65 nm by using a Cu‐catalyzed deoxygenative coupling as a key step. The resulting AGNRs (2HBT, 3HBT, and 4HBT) possess highly twisted π‐scaffolds, and the torsion angles between the...
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