INOR 332 |
| Our recent research has been focused on heteronuclear metal cluster complexes containing platinum with bulky phosphine ligands for hydrogen activation and as precursors to new mixed metal heterogeneous nanoscale hydrogen catalysts. New highly unsaturated platinum-rhenium complexes have been prepared and have been shown to add hydrogen readily at room temperature. The hydrogen additions are partially reversible. A new pentanuclear platinum-osmium cluster has been shown to add two equivalents of hydrogen, reversibly, at room temperature by opening and closing some of its Pt – Os bonds. The mechanisms of hydrogen activation have been investigated by theoretical methods. We have shown the Pt(PtBu3) group is able to activate metal-hydrogen bonds toward alkyne insertion reactions. A trimetallic PtSnRu cluster complex has been shown to be a precursor to trimetallic nanoparticles on mesoporous silica. These nanoparticles have been shown to be a superior catalyst for hydrogenation of dimethylterephthalate to cyclohexanedimethanol, a valuable linker for copolymers. |
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Frontiers in Organometallic Chemistry
8:30 AM-12:00 PM, Monday, August 20, 2007 BCEC -- 206 A/B, Oral
Division of Inorganic Chemistry |