OKLAHOMA STATE UNIVERSITY PHI LAMBDA UPSILON CHEMISTRY HONOR SOCIETY PROUDLY PRESENTS:

Professor T. Don Tilley

Department of Chemistry

College of Chemistry

University of California at Berkeley

Abstract

Given the great economic importance of silicon-based materials, coupling agents, and chemical reagents, it is of interest to develop new and more efficient transformations involving silicon-element bonds. In this respect, transition metals have played a central role in the inception and growth of the organosilicon industry. For example, the Direct Process involves copper catalysis and is practiced on a massive scale to convert elemental silicon to dimethyldichlorosilane. Also, hydrosilylations which are mainly catalyzed by platinum provide silicon-carbon bonds in specialty monomers and in cross-linked silicone polymers. Thus, new catalytic transformations are highly desired, and there is considerable interest in development of more cost-effective and selective hydrosilylation catalysts. A general approach to addressing these issues involves discovery of new fundamental reaction steps for activations of appropriate substrates, and unusual structures that may serve as intermediates in more efficient transformations. Among these are metal complexes that contain sigma complexes, and complexes with silylene (SiR₂) ligands. This presentation will focus on the synthesis of such compounds and new catalytic pathways that take advantage of these structures.

Friday, April 5, 2019

3:30 PM in PS-141

Refreshments at 3:00 PM in PS-105

There will be a reception and dinner in honor of Professor Tilley following his presentation. Tickets for this event can be obtained in the Chemistry Department Office.