Iminopyrrole‐Based Self‐Assembly: A Route to Intrinsically Flexible Molecular Links and Knots
Aleksandra Sarwa, Agata Białońska, Michał Sobieraj, Juan Pablo Martínez, Bartosz Trzaskowski, Bartosz Szyszko
Abstract
The use of 2,5-diformylpyrrole in self-assembly reactions with diamines and Zn(II)/Cd(II) salts allowed the preparation of [2]catenane, trefoil knot, and Borromean rings. The intrinsically dynamic nature of the diiminopyrrole motif rendered all of the formed assemblies intramolecularly flexible. The presence of diiminopyrrole revealed new coordination motifs and influenced the host-guest chemistry of the systems, as illustrated by hexafluorophosphate encapsulation by Borromean rings.
Topics & Concepts
HexafluorophosphateCatenaneSelf-assemblyTrefoil knotChemistryEncapsulation (networking)Knot (papermaking)StereochemistryPolymer chemistryNanotechnologyPolymer scienceMaterials scienceMoleculeOrganic chemistryIonic liquidComputer scienceKnot theoryCatalysisComputer networkComposite materialPorphyrin and Phthalocyanine ChemistrySupramolecular Chemistry and ComplexesSurface Chemistry and Catalysis