https://scholars.lib.ntu.edu.tw/handle/123456789/606852
Title: | A 10-nm-sized multicompartment cuboctahedron and its 2D hierarchical arrays observed by cryo-EM | Authors: | He L Hsu H.-K Li L Lin L.-T Tu T.-H Ong T.-G Liou G.-G YI-TSU CHAN |
Keywords: | heteroleptic complexation;molecular cuboctahedra;multivalency;SDG9: Industry innovation and infrastructure;self-assembly;supramolecular arrays;terpyridines | Issue Date: | 2022 | Journal Volume: | 8 | Journal Issue: | 2 | Start page/Pages: | 494-507 | Source: | Chem | Abstract: | Quantitative self-assembly of three-dimensional (3D) giant molecules (>10 nm in diameter) with well-defined geometry remains an outstanding synthetic challenge. Here, we report the rational construction of a 10-nm-sized cuboctahedron using dynamic heteroleptic complexation and multivalent ligand design. The obtained molecular cuboctahedron contains a double-layered multicompartment structure, reminiscent of a self-balanced cable-strut tensile architecture. Its precisely designed shape and size lead to the hierarchical self-assembly into ordered square arrays with a lattice constant of 7.9 nm. Additionally, the local structures, such as dislocations and grain boundaries of packing domains, are also recognized by cryogenic electron microscopy (cryo-EM), which interrupt the regular patterns of square lattices and then result in the oblique arrays. The observed assembly of the giant cuboctahedra into supramolecular arrays provides a foundation for the bottom-up development of uniform two-dimensional (2D) materials. ? 2021 Elsevier Inc. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122927817&doi=10.1016%2fj.chempr.2021.11.013&partnerID=40&md5=843f74736b73e717b1128693b40ba725 https://scholars.lib.ntu.edu.tw/handle/123456789/606852 |
ISSN: | 24519308 | DOI: | 10.1016/j.chempr.2021.11.013 |
Appears in Collections: | 化學系 |
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