Jake Soper , Georgia Institute of Technology, School of Chemistry and Biochemistry, 901 Atlantic Drive NW, Atlanta, GA, US, 30332-0400 | Robin G. Hicks | Stephen Colbran

Coordination chemistry is dominated by the study of complexes with ligands that are redox-inert. Yet over the past 40 years, a library of literature has emerged to describe the preparation and characterization of metal complexes with ligands that can exist in multiple oxidation states. Early studies of so-called "non-innocent" ligand complexes focused on the unique electronic structures and properties that result from the interaction of redox-active ligands with transition metal ions, particularly in intravalence charge transfer reactions. Building on these successes, the past decade has seen an explosion of research on redox-active ligand complexes that touches all areas of modern inorganic chemistry. Advances in computational methods and spectroscopic techniques provide new tools for understanding the non-trivial electronic structures of complexes with redox-active ligands. Non-innocent ligand complexes have found applications in novel stoichiometric and catalytic transformations of small-molecule substrates. The preponderance of redox-active cofactors in metalloenzyme active sites has spawned biomimetic and bioinspired catalyst designs that rely on ligand-centered changes in oxidation state for catalytic function. Redox-active ligands feature prominently in solid-state materials and coordination polymers, which exhibit interesting magnetic and electronic properties. This symposium will bring together investigators from all of these areas to present a comprehensive summary of the cutting-edge research in the field.