Antsiburov Ivan, Schütz Max, Bühler Raphael, Muhr Maximilian, Stephan Johannes, Gemel Christian, Klein Wilhelm, Kahlal Samia, Saillard Jean-Yves, Fischer Roland A
Department of Chemistry and Catalysis Research Center, Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich, Lichtenbergstr. 4, Munich, Garching 85748, Germany.
Univ Rennes, CNRS, ISCR-UMR 6226, Beaulieu, Rennes F-35000, France.
Inorg Chem. 2024 Feb 26;63(8):3749-3756. doi: 10.1021/acs.inorgchem.3c03790. Epub 2024 Feb 9.
Key strategies in cluster synthesis include the use of modulating agents (e.g., coordinating additives). We studied the influence of various phosphines exhibiting different steric and electronic properties on the reduction of the Au(I) precursor to Au(0) clusters. We report a synthesis of the bimetallic clusters [Au(AlCp*)] = AuAl () and [HAu(AlCp*)] = HAuAl () (Cp* = pentamethylcyclopentadiene) using Au(I) precursors and AlCp*. The cluster [Au(AlCp*)] = AuAl () was isolated and identified as an intermediate species in the reactions to and . The processes of cluster growth and degradation were investigated by in situ H NMR and LIFDI-MS techniques. The structures of and were established by DFT geometry optimization. These octahedral clusters can both be described as closed-shell 18-electron superatoms.
