6533b7d2fe1ef96bd125f66d
RESEARCH PRODUCT
A Wavy Two-Dimensional Covalent Organic Framework from Core- Twisted Polycyclic Aromatic Hydrocarbons
Craig T. StoppielloKarol StrutyńskiManuel Melle-francoAndrei N. KhlobystovCarlos Martí-gastaldoMarta Martínez-abadíaAurelio Mateo-alonsoAurelio Mateo-alonsoBelén Lerma-berlangaAkinori Saekisubject
ChemistryStackingGeneral Chemistry010402 general chemistry01 natural sciencesBiochemistryCatalysis0104 chemical sciencesCrystallinityColloid and Surface ChemistryPlanarChemical physicsCovalent bondLattice (order)HoneycombMesoporous materialCovalent organic frameworkdescription
A high degree of crystallinity is an essential aspect in two-dimensional covalent organic frameworks, as many properties depend strongly on the structural arrangement of the different layers and their constituents. We introduce herein a new design strategy based on core-twisted polycyclic aromatic hydrocarbon as rigid nodes that give rise to a two-dimensional covalent organic framework with a wavy honeycomb (chairlike) lattice. The concave–convex self-complementarity of the wavy two-dimensional lattice guides the stacking of framework layers into a highly stable and ordered covalent organic framework that allows a full 3D analysis by transmission electron microscopy revealing its chairlike honeycomb facets and aligned mesoporous channels. Remarkably, the waviness of the framework does not disrupt the interlayer π–π stacking that shows charge transporting properties similar to those of planar covalent organic frameworks. The implementation of core-twisted aromatics as building blocks for covalent organic frameworks brings new possibilities in the design of highly ordered organic materials.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-09-11 |