Three novel perylene monoimide derivatives,i.e.9-phenyl-N-octyl-perylene-3,4-dicarb-oximide (C1),9-(4-methoxyphenyl)-N-octyl-perylene-3,4-dicarboximide (C2) and 9-(N,N′-diphenylaminophenyl)-N-Octyl-perylene-3,4-dicarboximide (C3)are synthesized via Suzuki