The Marriage of Sierpiński Triangles and Platonic Polyhedra

作者：Wang, Jun; Jiang, Zhilong; Liu, Weiya; Wu, Zihao; Miao, Rui; Fu, Fan; Yin, Jia-Fu; Chen, Bangtang; Dong, Qiangqiang; Zhao, He; Li, Kaixiu; Wang, Guotao; Liu, Die; Yin, Panchao; Li, Yiming; Chen, Mingzhao; Wang, Pingshan

来源：Angewandte Chemie - International Edition, 2023, 62(1): e202214237.

DOI：10.1002/anie.202214237

• Discrete complexes
• Fractal structures
• Multicomponents
• Octahedron
• Platonic polyhedron
• Platonic solids
• Quantitative yields
• Self-similarities
• Sierpiński fractal
• Tetrahedra

Fractal structures with self-similarity are of fundamental importance in the fields of aesthetic, chemistry and mathematics. Here, by taking advantage of constructs the rational geometry-directed precursor design, we report the construction of two fascinating Platonic solids, the Sierpiński tetrahedron ST-T and the Sierpiński octahedron ST-O, in which each possesses a fractal Sierpiński triangle on their independent faces. These two discrete complexes are formed in near-quantitative yield from the multi-component self-assembly of truncated Sierpiński triangular kernel L1with tribenzotriquinacene-based hexatopic and anthracene-based tetratopic terpyridine ligands (L3and L4) in the presence of metal ions, respectively. The enhanced stabilities of the 3D discrete structures were investigated by gradient tandem mass spectrometry (gMS2). This work provides new constructs for the imitation of complex virus assemblies and for the molecular encapsulation of giant guest molecules.
? 2022 Wiley-VCH GmbH.

• 单位
  华南理工大学; 广州大学; 中南大学