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Ch. Artner, U. Schubert:
"Mixed-Metal Oxo Clusters";
Talk: 3rd International Workshop on Transition Metal Clusters, Benicàssim (Castelló), Spain; 2012-09-06 - 2012-09-09; in: "3rd International Workshop on Transition Metal Clusters - Workshop Abstracts", (2012), 39.

Metal oxo clusters are often used as building blocks for inorganic-organic hybrid materials. To achieve a highly ordered network with strong chemical bonds between the cluster and the organic components, two crucial parameters must be taken into account, the reactivity of the cluster ligands to form strong bonds as well as their geometrical arrangement on the cluster surface. The main challenge is to obtain these tailor-made clusters by controlled ligand exchange.
Oxo clusters that contain two different metals open the field to an even larger variety of building blocks with various physical and chemical properties. Due to the different bonding characteristics of the used metals, new cluster core types can be obtained. These clusters may have an asymmetric shape and ligand sphere, hence an anisotropic functionalization can be potentially achieved easier.
In our study we focused on mixed metal oxo clusters, containing Ti or Zr and a second, mainly divalent metal. The use of metal acetates as source for the second metal proved to be an effective and convenient route in synthesising these new clusters.