[Zurück]

Ch. Artner, U. Schubert:
"Influence of Carboxylic Acids on the Formation of Mixed-Metal Oxo- Cluster from Metal Alkoxides";
Poster: 4^th EuCheMS Chemistry Congress, Prague, Czech Republic; 26.08.2012 - 30.08.2012; in: "4^th EuCheMS Chemistry Congress - Final Program", (2012), S. P-236.

Molecular metal oxo- cluster can act as building blocks in inorganic-organic hybrid materials. Strong chemical bonds between the components demand reactive sites on the surface of the cluster, which serve as connectors. In order to achieve highly ordered networks, the geometry of these functional ligands is crucial.
The introduction of oxo- cluster containing two different metals opens the field to an even larger variety of building blocks with different physical and chemical properties. Due to the different bonding characteristics of the used metals and the asymmetric shape of the clusters an anisotropic functionalizationcan be possibly achieved.
There are several ways to synthesise oxo- cluster, one is to start from the corresponding metal alkoxides and react them with carboxylic acids. The type of cluster formed during the reactionis mainly influenced by the type of alkoxides and acids used, as well as on the alkoxide/acid ratio. In this work, we present the influence of different carboxylic acids on the formation of mixed Ti/Zr oxo- cluster.

cluster compound; Carboxylic acids; X-ray diffraction