Polyoxometalate-Incorporated Supramolecular Self-Assemblies: Structures and Functional Properties

As a family of functional inorganic clusters, polyoxometalates (POMs) were introduced into hybrid self-assemblies with the assistance of the supramolecular interaction with diverse organic cationic molecules, which reinforced both the processibility and functionality of the POMs. This method not only improved the surface properties of the POMs, but also provided excellent amphiphilic building blocks for the construction of advanced self-assembled nanostructures. In this review, we summarize the fundamental aspects of surfactant-encapsulated POMs (SEPs) and the most recent progress in potential applications of SEPs and the related POM-containing systems (hybrids composed of POMs and polymers and other cationic molecules beyond surfactants). The functionalization of such organic/inorganic hybrids in self-assembled systems is also described. Furthermore, perspectives regarding self-assemblies and possible applications of POM complexes with synergetic interactions between organic and inorganic components are outlined.