▎ 摘　　要

NOVELTY - Graphene nanoribbon precursor having a structure, is new. USE - The precursor is useful for producing a graphene nanoribbon. ADVANTAGE - The precursor is capable of stably producing a graphene nanoribbon whose edge structure is of armchair type and whose edge hydrogen is replaced with fluorine. DETAILED DESCRIPTION - Graphene nanoribbon precursor having a structure of formula (I), is new. n = integer greater than or equal to 0; X = Br, I or Cl;and Y = H or F. An INDEPENDENT CLAIM is included for a method for producing a graphene nanoribbon involving heating the graphene nanoribbon precursor to a first temperature on a substrate to induce elimination of X and a carbon-carbon binding reaction to obtain a polymer on the substrate and heating the polymer to a second temperature that is higher than the first temperature to induce elimination of hydrogen and Y and a carbon-carbon binding reaction.