Substituted vanadium-oxide clusters

Vanadium-oxide clusters are one class of the most important polyoxometalates. The design and assembly of polyoxovanadates (POVs) are currently of great interest in the field of crystal engineering, not only because of their structural diversity, but also their potential applications in the fields of catalytic, magnetic and optical materials. To date, a brand-new class of POVs with the incorporation of main group elements into vanadiumoxide clusters has been widely investigated. In recent years, transition-metal complexes (TMCs) are utilized to combine with different substituted vanadium-oxide clusters for the construction of various novel structural types with desired properties, which not only greatly enriched the structure of vanadium-oxide clusters, but also promoted its continuous development in the synthesis. A review has been mainly given to the new development of the substituted vanadium-oxide clusters in the aspects of structural characteristics and magnetic properties over the past several years. The prospects of them are also discussed in this paper.