Fundamental Organometallic Reactions Mediated by Low-Valent Uranium: Synthesis, Characterization, and Reactivity of Uranium Complexes with Alkyl and Redox-Active Ligands

Seminar series
Inorganic Chemistry
Wed, May 15 4:30pm
Cram Conference Room, 3440 Mol Sci
Speaker Professor Suzanne C. Bart
Purdue University
Department of Chemistry

Fundamental organometallic reactions such as oxidative addition and reductive elimination are essential steps for many chemical transformations.  Our group explores the use of low-valent uranium species for reactions such as these to establish the utility of this element in organometallic processes and to understand basic reactivity of this underexplored element.  While uranium typically undergoes radical chemistry, our group is demonstrating that redox-active ligands can be used to mediate multi-electron chemistry at reduced monomeric uranium species.  The use of α-diimine, iminoquinone, and pyridine(diimine) ligands for organometallic transformations will be presented along with spectroscopic and crystallographic characterization of the resulting complexes.  Additionally, the synthesis of low-valent uranium alkyls will be discussed, and a comparison of the reactivity between uranium(III) and uranium(IV) alkyls towards small molecule activation will be presented.