Controlling the J‐ and H‐Aggregates and Supramolecular Polymerization Pathways of Anthanthrene by Tuning the Hydrogen Bonding Sites

Abstract Exploration of new π‐conjugated building blocks for construction of supramolecular polymers is at the forefront of self‐assembly. Herein, we incorporate a highly planar anthanthrene skeleton into the design of two supramolecular monomers 1 and 2 . Their supramolecular polymerization have been comprehensively investigated by spectroscopic studies. Our results reveal that the number and/or position of the amide groups exert pronounced effect on the molecular aggregations and the mechanisms of the supramolecular polymerization. Monomer 1 self‐assembles in a cooperative manner to form 1D nanofibers though face‐to‐face H‐type aggregation. In contrast, 2 adopts J‐aggregation to form supramolecular polymer via isodesmic mechanism.