title: Hierarchical supramolecular assembly of sterically demanding π-systems by conjugation with oligoprolines.
abstract: Self-assembly from flexible worm-like threads via bundles of rigid fibers to nanosheets and nanotubes was achieved by covalent conjugation of perylene monoimide (PMI) chromophores with oligoprolines of increasing length. Whereas the chromophoric π-system and the peptidic building block do not self-aggregate, the covalent conjugates furnish well-ordered supramolecular structures with a common wall/fiber thickness. Their morphology is controlled by the number of repeat units and can be tuned by seemingly subtle structural modifications.
authors.affiliation: Laboratory of Organic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 3, 8093 Zürich (Switzerland).
authors.forename: Urszula
authors.initials: U
authors.lastname: Lewandowska
authors.forename: Wojciech
authors.initials: W
authors.lastname: Zajaczkowski
authors.forename: Long
authors.initials: L
authors.lastname: Chen
authors.forename: Francelin
authors.initials: F
authors.lastname: Bouillière
authors.forename: Dapeng
authors.initials: D
authors.lastname: Wang
authors.forename: Kaloian
authors.initials: K
authors.lastname: Koynov
authors.forename: Wojciech
authors.initials: W
authors.lastname: Pisula
authors.forename: Klaus
authors.initials: K
authors.lastname: Müllen
authors.forename: Helma
authors.initials: H
authors.lastname: Wennemers
keywords: J-aggregates; nanostructures; peptides; self-assembly; π-π interactions