- This event has passed.
Thesis Defence: Low-valent Boron-Transition Metal Complexes Supported by a Bidentate Carbene-Phosphine Ligand
June 27 at 10:00 am - 2:00 pm
YuXiang Wei, supervised by Dr. Conor Pranckevicius, will defend their thesis titled “Low-valent Boron-Transition Metal Complexes Supported by a Bidentate Carbene-Phosphine Ligand” in partial fulfillment of the requirements for the degree of Master of Science in Chemistry.
An abstract for YuXiang Wei’s thesis is included below.
Defences are open to all members of the campus community as well as the general public. Registration is not required for in-person defences.
ABSTRACT
A novel bidentate carbene-phosphine ligand was synthesized as a framework for low-valent transition metal boron complexes. Various corresponding carbene-borane adducts were synthesized. An iron borylene complex was synthesized via salt elimination and fully characterized. A nickel-boryl complex was accessed by oxidative added to one B−Br bond, where a second B−Br remained n² coordinated to the metal center. A reactivity study of this species revealed a unique isocyanide insertion into B−Ni bond, forming an unprecedented C−N−Ni three-membered ring. Along with DFT calculation, these results support a boryl nickel complex over a borylene-type species. Promising evidence for the formation of a nickel aminoborylene complex is also presented.
