ABSTRACT
Abstract .................................................................................................................. 237 10.1 Introduction................................................................................................ 237 10.2 Organometallic Precursors of Supported Catalysts .................................. 238 10.3 Oxide and Zeolite Supports....................................................................... 239 10.4 Examples.................................................................................................... 240 Acknowledgments.................................................................................................. 248 References.............................................................................................................. 248
Supported metal complexes and clusters with well-defined structures offer the advantages of catalysts that are selective and structures that can be understood in depth. Such catalysts can be synthesized precisely with organometallic precursors, as illustrated in this review. Synthetic methods are illustrated with examples, including silica-supported chromium and titanium complexes for alkene polymerization; rhodium carbonyls bonded predominantly at crystallographically specific sites in a zeolite; and metal clusters, including Ir4, Rh6, Os5C, and bimetallics.
