Date of Award
Chemistry and Biochemistry
Director of Thesis
Two molecular nickel-based catalysts, (2,2’bipyridine-4,4’-carboxylic acid)nickel(II) chloride and (2,2'-bipyridine-4,4'-diamidopropylsilatrane)nickel(II) chloride, were synthesized and subsequently attached to a solid support in the form of amorphous silicon dioxide to create two hybrid molecular/heterogeneous catalysts. Characterization using ICP-MS and ATR-FTIR confirms that both catalysts are bonded to the SiO2 support. The catalysts were both able to catalyze a Suzuki-Miyarua cross-coupling which their molecular counterparts were unable to; the carboxylate catalyst was able to achieve yields of 10% and the silatrane catalyst achieved yields of up to 50%. Post-reaction analysis indicated that while some catalyst desorption occurred in both complexes, active catalytic species remained adhered to the surface post-reaction, with the silatrane catalyst showing more resistance to leaching. These hybrid catalysts represent another advancement in the field of surface stabilized metal oxide catalysts using an earth abundant transition metal.
Morrow, Mollie, "A Comparative Study of Two Nickel-based Suzuki-Miyaura Hybrid Molecular Catalysts" (2022). Senior Theses. 534.