Friday Synthesis Symposium - Neena Chakrabarti
Friday Synthesis Symposium
"Nitrogen-rich Ligands as Supports for Uncommon Lithium Coordination and a New Cadmium-Hydride Complex."
Presented by Neena Chakrabarti (Parkin Group)
Friday, April 19, 2013 at 4pm
Room 209 Havemeyer
The tris(pyrazolyl)hydroborato [Tp] ligand has been shown to enforce an uncommon pyramidal geometry for lithium. The lithium centers in these molecules have the ability to bind small molecules to form four-coordinate adducts [Tp]Li-L which have been structurally characterized by X-ray diffraction, while the magnitude of the binding constants has been evaluated by the use of NMR spectroscopy and theoretical calculations.
Understanding the coordination preferences of zinc, cadmium and mercury is important with respect to the design of chelating agents for selectively removing toxic metals from the body. As part of these studies, evidence has been obtained for the formation of a novel cadmium hydride complex, [Tptm]CdH, and the reactivity of this species will be discussed.