INOR 225 |
| Organocopper species are widely used in organic synthesis, catalysis and as luminescent materials. Organo-copper(I) compounds form a variety of different aggregates in solution as well as in the solid state. Pentafluorophenylcopper crystallizes from non-coordinating solvents as a tetrameric aggregate with short Cu-Cu distances of ~ 2.4 Å. In contrast, crystallization from toluene leads to formation of the π-complex [(C6F5)Cu]4(η2-toluene)2. Coordination of nucleophiles such as pyridine to tetrameric pentafluorophenylcopper leads to break-down of the aggregate to give monomeric species, which in turn form supramolecular structures via cuprophilic and π-stacking interactions. Stacks that involve the intact tetramer have also been realized. These supramolecular stacks show interesting photophysical properties, which have been examined by variable temperature solid-state photoluminescence studies. |
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General Organometallic Chemistry
7:00 PM-10:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Inorganic Chemistry |