The ability to precisely modulate the electrochemical properties of metal complexes is of high importance in the development of energy-efficient redox systems. One method to investigate these electrochemical properties involves systematically tuning the environment around a metal of interest via the use of Lewis acids held in close proximity by tailored heteroditopic ligand frameworks. Using this approach, we have been studying zinc complexes to reveal details on the ligand-centered reductions that can possibly occur in such complexes. Specifically, we have coordinated zinc to the Schiff-base cavity of a previously investigated heteroditopic ligand, and a variety of redox-inactive cations (Na, Ca, Nd, Y, and Sc) have been installed in a closely associated crown-ether-like site. We are now studying the positive shift in reduction potential of the Schiff-base moiety to the pKa of the Lewis acid, and recent results in this area will be discussed.

Electrochemical properties of heterobimetallic complexes of Zinc

2019 Spring National Meeting

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