Living supramolecular polymerization of an amphiphilic aza-BODIPY dye realized by water-assisted kinetic trapping.

The kinetic assembly pathways of a newly synthesized amphiphilic aza-BODIPY dye 1 were tuned by using H 2 O as a co-solvent in MeOH. Accordingly, the biphasic aggregation pathways resulting in kinetically-trapped and thermodynamically stable aggregates of 1 were established and the multiple cyclic seeded living supramolecular polymerization of this dye was realized.