“…PDI-1 presents four diphenylphenoxy substituents in the 2, 5, 8, and 11 positions, so-called ortho positions, and PDI-2 does not present any substituent either in the ortho or bay positions. PDI-1 has been synthesized for the first time, by using the methodology previously described by our group, from 2,5,8,11-tetrabromoperylene-3,4:9,10-tetracarboxydiimide in the presence of 2,6-diphenylphenol, CsF, and 18-crown-6 (Scheme ; see SI for the synthetic methodology and characterization). PDI-2 was prepared following the procedure previously described in the literature …”