INOR Stephen Koch, Nora Radu  Wednesday, August 31, 2011 

565 - Redox chemistry, acid reactivity and hydrogenation reactions of a new class of two-electron mixed valence dirhodium and diiridium complexes

Thomas S Teets, tteets@mit.edu, Daniel G Nocera. Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, United States

A new class of structurally homologous two-electron mixed-valence dirhodium and diiridium complexes, which feature unsaturated four-coordinate M(0) centers, are described. The redox chemistry of these new complexes is described, as well as three synthetic routes to generate hydride-containing complexes: (i) protonation with acid sources; (ii) reversible hydrogenation and (iii) orthometallation of closely related complex. The spectroscopic properties, solid-state structures and solution behavior of all reaction products are outlined. The electronic spectra of the new complexes are also considered, with both absorption and in some cases emission features that derive from the bimetallic core. The utility of these complexes in interrogating multi-electron small-molecule activation chemistries is also highlighted.


Wednesday, August 31, 2011 03:20 PM
Coordination Chemistry (02:00 PM - 05:30 PM)
Location: Colorado Convention Center
Room: 4E

 

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