writer：Xuedong Xiao, Hongbo Chen, Xuxu Dong, Dazhuo Ren, Qiang Deng, Dapeng Wang und Wei Tian*
keywords：Cation–π-Driven，Two-Dimensional Supramolecular Polymers，Efficient Catalyst Carriers
source：期刊
specific source：Angew. Chem. 2020, 132, 9621 – 9628
Issue time：2020年

The cation–π interaction is a strong non-covalent interaction that can be used to prepare high-strength, stable supramolecular materials. However, because the molecular plane of a cation-containing group and that of aromatic structure are usually perpendicular when forming a cation–π complex, it is difficult to exploit the cation–π interaction to prepare a 2D self assembly in which the molecular plane of all the building blocks are parallel. Herein, a double cation–π-driven strategy is proposed to overcome this difficulty and have prepared 2D self-assemblies with long-range ordered molecular hollow hexagons. The double cation–π interaction makes the 2D self-assemblies stable. The 2D self-assemblies are to be an effective carrier that can eliminate metal-nanoparticle aggregation. Such 2D assembly/palladium nanoparticle hybrids are shown to exhibit recyclability and superior catalytic activity for a model reaction

全文链接：

https://doi.org/10.1002/anie.202000255.