期刊
NATURE CHEMISTRY
卷 9, 期 11, 页码 1068-1072出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nchem.2823
关键词
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资金
- VW Foundation
- ETH Scientific Center for Optical and Electron Microscopy (ScopeM)
Despite recent advances in the synthesis of increasingly complex topologies at the molecular level, nano-and microscopic weaves have remained difficult to achieve. Only a few diaxial molecular weaves exist-these were achieved by templation with metals. Here, we present an extended triaxial supramolecular weave that consists of self-assembled organic threads. Each thread is formed by the self-assembly of a building block comprising a rigid oligoproline segment with two perylen-emonoimide chromophores spaced at 18 angstrom. Upon pi stacking of the chromophores, threads form that feature alternating up- and down-facing voids at regular distances. These voids accommodate incoming building blocks and establish crossing points through CH-pi interactions on further assembly of the threads into a triaxial woven superstructure. The resulting micrometre-scale supramolecular weave proved to be more robust than non-woven self-assemblies of the same building block. The uniform hexagonal pores of the interwoven network were able to host iridium nanoparticles, which may be of interest for practical applications.
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