“…1–6 POM materials with abundant structural units and chemical versatility are compellingly appealing 7–10 and are widely recognized as the preferred choice in functional, magnetism, and catalysis materials. 11–15 Under certain conditions, condensation reactions are triggered between the MO x components, in which the MO x octahedrons are structurally assembled in the form of typically symmetrical assemblies via edge-, corner- or face-sharing linkages. With the development of synthesis technology, a growing number of synthesis methods have been rapidly established, demonstrating that the composition of POMs can be customized by varying the constituent elements.…”