Effect of α-cyclodextrin on the optical and surface-morphological properties of pyrene-triazole azomethine oligomers

► The combined effects of oligomerization and rotaxane formation improve the optical properties. ► Oligomerization and rotaxane formation improves the morphological properties of the surface. ► Macrocyclic encapsulation by αCD of oligoazomethines enhances the solubility in polar solvents.