Shape-Persistent Octanuclear Zinc Salen Clusters: Synthesis, Characterization, and Catalysis
Inorganic Chemistry2011Vol. 50(17), pp. 7934–7936
Citations Over TimeTop 10% of 2011 papers
Robert M. Haak, A. Decortes, Eduardo C. Escudero‐Adán, Marta Martı́nez Belmonte, Eddy Martín, Jordi Benet‐Buchholz, Arjan W. Kleij
Abstract
We describe a selective and template-controlled synthesis of a series of Zn8 metal complexes based on a bis-nucleating salen ligand scaffold. Our results, a combination of X-ray analysis and solution studies, show that discrete, shape-persistent metal clusters can be prepared in high yield. Their activity in organic carbonate catalysis is a function of the metal-connecting fragment present in the exterior of the cluster complex. The high stability of the clusters has been confirmed by 1H, 13C (DEPTQ) and DOSY NMR, gel permeation chromatography, high-performance liquid chromatography, and mass spectrometry.
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