One-pot mechanochemical synthesis was demonstrated to be an efficient strategy to synthesize host–guest POM⊂rho-ZIF complexes (POM = polyoxometalate; rho-ZIF = zeolitic imidazolate framework with rho topology) with high crystallinity. In this work, the metastable rho-ZIF with large interior cavities and windows was used as host matrix for encapsulating and immobilizing bulky guest molecules with high loading efficiency and chemical stability. As novel catalysts, POM⊂rho-ZIF complexes were found effective for the selective oxidation of a series of sulfides to sulfoxides. Moreover, the heterogeneity of these composite catalysts was confirmed by leaching tests, and they can be recycled at least four times without significant loss of activity.

中文翻译：

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高效机械化学合成多金属氧酸盐⊂ZIF配合物作为可重复使用的高选择性氧化催化剂

一锅机械化学合成被证明是一种有效的策略，以合成主客体POM⊂ RHO -ZIF络合物（POM =多金属氧酸盐; RHO -ZIF =沸石咪唑酯骨架用RHO拓扑）具有高的结晶度。在这项工作中，具有大内腔和窗口的亚稳态rho- ZIF被用作基质，以高负载效率和化学稳定性来封装和固定庞大的客体分子。作为新型催化剂，POM⊂ RHO发现-ZIF配合物对于将一系列硫化物选择性氧化为亚砜有效。而且，这些复合催化剂的非均相性通过浸出试验得到证实，并且它们可以循环至少四次而没有明显的活性损失。