title: Retention of the Cluster Core Structure during Ligand Exchange Reactions of Carboxylato-Substituted Metal Oxo Clusters.
abstract: The exchange of the carboxylato ligands of Zr4O2(methacrylato)12in reactions with carboxylic acids proceeds with retention of the composition and structure of the cluster core. This was concluded from exchange/re-exchange experiments and from comparison of the IR bands of the cluster core of the original and ligand-exchanged clusters. The IR bands were assigned on the basis of DFT calculations. Scrambling reactions between two Zr4O2(OOCR)12clusters with different carboxylato ligands are a new way to prepare mixed-ligand oxo clusters.
authors.affiliation: Institute of Materials Chemistry, Vienna University of Technology Getreidemarkt 9, 1060 Vienna, Austria.
authors.forename: Johannes
authors.initials: J
authors.lastname: Kreutzer
authors.affiliation: Institute of Materials Chemistry, Vienna University of Technology Getreidemarkt 9, 1060 Vienna, Austria.
authors.forename: Michael
authors.initials: M
authors.lastname: Puchberger
authors.affiliation: Institute of Materials Chemistry, Vienna University of Technology Getreidemarkt 9, 1060 Vienna, Austria.
authors.forename: Christine
authors.initials: C
authors.lastname: Artner
authors.affiliation: Institute of Materials Chemistry, Vienna University of Technology Getreidemarkt 9, 1060 Vienna, Austria.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Schubert
keywords: Cage compounds; Carboxylate ligands; Cluster compounds; Ligand exchange; Zirconium