{Mo126W30}: Polyoxometalate Cages Shaped by π-π Interactions

Authors：Zhu, Minghui; Han, Shicheng; Liu, Junrui; Tan, Mengjin; Wang, Wei; Suzuki, Kosuke; Yin, Panchao; Xia, Debin; Fang, Xikui^*

Source：Angewandte Chemie - International Edition, 2022, 61(50): e202213910.

DOI：10.1002/anie.202213910

• pi Interactions
• Cage Compounds
• Ligand Exchange
• NMR Spectroscopy
• Polyoxometalates

Here we report the formation of giant {Mo126W30} polyoxometalate cages templated by pi-conjugated planar ligands. Their inorganic shells incorporate arrays of 18 stacked aromatic carboxylates, such as 1,3,5-benzenetricarboxylate or 5-nitroisophthalate, and the assembly is stabilized by multiple pi-pi interactions. NMR data confirmed that the cages are stable in solution and the inner aromatic templates can be postsynthetically replaced by selected aliphatic dicarboxylates, paving the way for endo-functionalization and exploration of the reactivities within the cage cavities.

• Institution
  中国科学院福建物质结构研究所; 1; xk