INOR 307 |
| In the course of this study a series of ruthenium(I) carbonyl carboxylates of the general formula [Ru2(O2CR)2(CO)5]2 having various fluorinated R-groups has been prepared. Synthesis was based on a combination of solvent-free techniques, namely melt reactions and gas-phase sublimation-deposition procedures. All complexes have been fully characterized using X-ray crystallography, IR and NMR spectroscopy, cyclic voltammetry, and elemental analysis. Cyclic voltammetry reveals reversible oxidation and irreversible reduction steps. X-ray diffraction shows a general ‘dimer of dimers' type of structure in the solid state with adjacent dimetal units bound through axial Ru…O interactions. The tetranuclear core structure is easily broken in solution or in a gas phase creating an open coordination metal site, as proven by reactions with various donor ligands. The electrophilic properties at these ruthenium(I) sites can be readily tuned by changing the fluorinated substituents of carboxylates and that effects the reactivity and catalytic properties of the above diruthenium core complexes. |
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Synthetic Coordination Chemistry
7:00 PM-10:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Inorganic Chemistry |