CHED 465 |
| Though an enormous body of work on mono- and bidentate transition metal N-heterocyclic carbene (NHC) complexes continues to accumulate, the chemistry of NHC-based tridentate “pincer” ligands is still in its formative stages. Given the intriguing combination of thermal stability conferred by the pincer scaffold with the high donating power and low lability of NHC ligands, we expect late-transition metal complexes of such ligands to be useful in the controlled activation of chemical bonds typically perceived as “inert”. To this end, our presentation will detail efforts to develop general methods for the synthesis and metalation of such ligands under mild conditions. Specifically, we have focused on the generation of thermally-sensitive chloroform, chloroformate, and carbonate adducts of the corresponding bis(imidazolium) or bis(imidazolinium) salts with good success. Preliminary work on the coordination of these pincer ligands to various platinum group metals via thermally-induced carbene transfer will also be presented. |
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Undergraduate Research Poster Session: Organic Chemistry
11:00 AM-1:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster
Division of Chemical Education |