Fig. 3. (A and B) Aromatic scaffolds allow precise control over the geometrical disposition of their substituents (A) and the establishment of complementary multivalent interfaces (e.g. nucleobases, B). (C–F) Examples of rigid aromatic monomers capable of 2D self-assembly and their minimised 3D structures (Avogadro v.1.2.0): seesaw (C),80 attractor–repeller (D),81 curved (E)82 and boat-shaped (F);83 green substituents represent polar pendants.
