Oligopyrrole-based solid state self-assemblies

The ability of pyrrole-containing species to form higher order self-assembled ensembles and aggregates in the solid state is reviewed. The different binding modes pyrrole adopts in stabilizing these systems are analyzed as are the various underlying hydrogen bonding interactions upon which they are predicated.
Functionalized pyrroles represent a unique set of supramolecular “building blocks” that, depending on the nature and number of substituents, are capable of stabilizing a range of self-assembled ensembles in the solid state that run the gamut from simple dimers and trimers to aesthetically pleasing polymeric ribbons and tapes.