Abstract
The simplest and most easily characterized dispersed metal catalysts confined to a solid phase are mononuclear complexes coordinated to pendant ligands like phosphines. Both the metal catalysts finding the greatest technological application consist of arrays of particles of various sizes and structures dispersed on solid supports, with each particle (“crystallite”) typically containing hundreds or thousands of metal atoms. The difficulty of characterization of the surfaces of these crystallites points to the need for development of methods for preparing and studying simpler supported metal catalysts which, in contrast to the mononuclear complexes, may offer some of the important characteristics of surfaces. Accordingly, the broad objective of this research was to prepare and characterize supported catalysts incorporating a single kind of metal structure having neighboring metal centers. The catalyst preparation involved the formation of iridium carbonyl clusters coordinated to one of the simplest kinds of solid supports, a copolymer of styrene and divinylbenzene (DVB) functionalized with phosphine groups.
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Lieto, J., Rafalko, J.J., Minkiewicz, J.V., Rafalko, P.W., Gates, B.C. (1979). Preparation and Characterization of Polymer-Bound Tetrairidium Cluster Catalysts for Ethylene Hydrogenation. In: Tsutsui, M. (eds) Fundamental Research in Homogeneous Catalysis. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2958-9_42
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DOI: https://doi.org/10.1007/978-1-4613-2958-9_42
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