▎ 摘　　要

NOVELTY - A cyclooctylene-based graphene imide (I) is new. USE - Compound (I) is used for organic photoelectric device (claimed). DETAILED DESCRIPTION - A cyclooctylene-based graphene imide of formula (I) is new. R1 = 2-60C alkyl, or 1-60C alkoxy, phenyl, or alkyl phenyl (all optionally substituted); R2 = H or optionally substituted phenyl; R3 = H;and or R2+R3 = optionally substituted phenyl. INDEPENDENT CLAIMS are included for the following: (1) a unilateral perylene imide of formula (II); and (2) preparation of compound (I). R4 = halo or optionally substituted phenyl.