title: Shape-Controlled Synthesis and Self-Sorting of Covalent Organic Cage Compounds.
abstract: The directional bonding approach is a powerful tool to rationally control both shape and stoichiometry of three-dimensional objects built from rigid building blocks under dynamic covalent conditions. Co-condensation of catechol-functionalized tribenzotriquinacene derivatives which have 90° angles between the reactive sites and diboronic acids with bite angles of 60°, 120°, and 180°, led to the efficient formation of, respectively, bipyramidal, tetrahedral, or cubic covalent organic cage compounds in a predictable manner. Investigations on the self-sorting of ternary mixtures containing two competitive boronic acids revealed either narcissistic or social self-sorting depending on the stability of the segregated cages relative to feasible three-component assemblies.
authors.affiliation: Universität Würzburg, Institut für Organische Chemie & Center for Nanosystems Chemistry (CNC), Am Hubland, 97074 Würzburg (Germany).
authors.forename: Stefanie
authors.initials: S
authors.lastname: Klotzbach
authors.affiliation: Universität Würzburg, Institut für Organische Chemie & Center for Nanosystems Chemistry (CNC), Am Hubland, 97074 Würzburg (Germany). florian.beuerle@uni-wuerzburg.de.
authors.forename: Florian
authors.initials: F
authors.lastname: Beuerle
keywords: boronate esters; cages compounds; dynamic covalent chemistry; self-sorting; tribenzotriquinacenes