Transition metal catalysts have a variety of applications in industry ranging from pharmaceutical synthesis to the energy industry. Many commonly used catalysts utilize precious transition metals; however, these are expensive and scarce in the Earth’s crust, creating the need to develop catalysts capable of performing the same reactions as the precious metals, yet containing more abundant and inexpensive transitional metals. Towards this goal, we present Zr/Co and Ti/Co heterobimetallic complexes featuring a tris(phosphinoamide) ligand system. The Zr/Co system has demonstrated reactivity towards molecules such as alkynes, ketones, carbon dioxide, and alcohols, while the Ti/Co system has been less thoroughly studied. Herein, we will present studies that showcase the different reactivity profiles of the Zr/Co and Ti/Co systems towards catalysis and the activation of small organic molecules.

Comparison between the reactivity of Zr/Co and Ti/Co heterobimetallic complexes

ACS Spring 2022

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