Tian Ma

• Polyoxometalates (POMs) are discrete, polynuclear metal-oxides with a negative charge and a multitude of shapes, sizes and compositions. Here we report on the synthesis and structural as well as physicochemical characterization of two fundamentally different classes of POM-based materials. Part I: In 2008 the Kortz group discovered the class of polyoxopalladates (POPs) and hence this is a young research field. The synthesis of novel POPs is of interest due to their structural diversity combined with multiple interesting properties including catalysis. Here the synthesis of 20 novel POPs is reported, which were structurally characterized in the solid state and in solution. Part II: Hybrid inorganic-organic POMs contain organic functionalities covalently attached to the metal-oxo framework. Such compounds, if soluble and stable at physiological conditions, are of interest for biomedical applications, e.g. as inhibitors of enzymes or as antibacterial agents. In this section three novel organoantimony(III)-containing heteropolytungstates and their biomedical properties are reported.