1 research outputs found
Bimetallic Carbonyl Complexes Based on Iridium and Rhodium: Useful Tools for Hydrodefluorination Reactions
A set of bimetallic complexes based on iridium and rhodium with bis(diphenylphosphino)methane, bis(diâisoâpropylphosphino)methane, diphenylâ2âpyridylphosphine and 2â(diâisoâpropylphosphino)imidazole bridging ligands was prepared. The complexes were characterized by NMR and IR spectroscopy and studied quantumâchemically using DFT methods. The bimetallic systems succeeded in catalytic hydrodefluorination reactions of lower fluorinated aryl fluorides using molecular hydrogen and sodium tertâbutoxide as a base. Effects of (i) ligand variation, (ii) monoâ vs bimetallic nuclearity, and (iii) Ir vs Rh metal identity were studied and rationalized en route to achieve an effective hydrodefluorination.Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)Peer Reviewe