Double-Layered Supramolecular Prisms Self-Assembled by Geometrically Non-equivalent Tetratopic Subunits
Journal
Angewandte Chemie - International Edition
Journal Volume
60
Journal Issue
3
Pages
1298-1305
Date Issued
2021
Author(s)
Abstract
Supramolecular cages/vesicles in biology display sophisticated structures and functions by utilizing a few types of protein subunit quasi-equivalently at distinct geometrical locations. However, synthetic supramolecular cages still lack comparable complexity to reach the high levels of functionality found in natural systems. Herein we report the self-assembly of giant pentagonal supramolecular prisms (molecular weight >50 kDa) with tetratopic pyridinyl subunits serving different geometrical roles within the structures, and their packing into a novel superstructure with unexpected three-fold rotational symmetry in a single two-dimensional layer of crystalline state. The formation of these complicated structures is controlled by both the predetermined angles of the ligands and the mismatched structural tensions created from the multi-layered geometry of the building blocks. Such a self-assembly strategy is extensively used by viruses to increase the volume and complexity of capsids and would provide a new approach to construct highly sophisticated supramolecular architectures. ? 2020 Wiley-VCH GmbH
Subjects
Geometry; Prisms; Viruses; Building blockes; Complicated structures; Crystalline state; Natural systems; New approaches; Protein subunits; Rotational symmetries; Supramolecular architectures; Supramolecular chemistry
Type
journal article