哈尔滨工业大学方习奎团队报道了π–π的相互作用成形多金属氧酸盐笼Mo126W30。相关研究成果发表在2022年10月19日出版的《德国应用化学》。

该文中，研究人员报道了由π共轭平面配体模板化的巨型{Mo126W30}多金属氧酸盐笼的形成。它们的无机壳包含18个堆叠的芳香羧酸盐阵列，如1,3,5-苯三羧酸盐或5-硝基间苯二甲酸盐，并且通过多个π–π相互作用使组装稳定。

NMR数据证实，笼在溶液中是稳定的，内部芳香模板可以被选定的脂肪族二羧酸盐后合成取代，为笼腔内的功能化和反应性的探索铺平了道路。

附：英文原文

Title: {Mo126W30}: Polyoxometalate Cages Shaped by π–π Interactions

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

Issue&Volume: 2022-10-19

Abstract: Here we report the formation of giant {Mo  126  W  30  } polyoxometalate cages templated by π-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 π–π 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.

DOI: 10.1002/anie.202213910

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202213910