Water oxidation catalysts were developed from earth abundant metals to investigate the transformation of water to oxygen, protons, and electrons. The primary focus is onthe development of dihydroxybipyridine metal ((dhbp)M) complexes using first row transitionmetals. Dihydroxybipyridine complexes have their properties modulated through a series of ligand deprotonation events that influence reactivity through electronic effects and hydrogen bonding. Acid dissociation constants were determined and reported for the various (dhbp)M complexes synthesized. Comparative reactivity studies of first row transition metal complexes is probed utilizing a similar bipyridine derived ligand series with varying electron donor abilities. Complexes reported in this study were characterized by crystallographic methods and found to be monomeric. Cyclic voltammetry studies with electrodes made of glassy carbon and indium-tin oxide show catalytic waves illustrative of homogeneous catalytic water oxidation. The synthesis, characterization, acid dissociation constants, and rate constants for water oxidation catalysts will be presented.

Electrocatalytic water oxidation using earth abundant metals with proton responsive ligands

248th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.