In the presentation, we will describe a novel family of copper complexes bearing redox-active ligands with H-bonding donors. In our recent publication, we descirbe that the metal complexes bound by bidentate ligands are stabilized via intramolecular multicenter H-bonding interactions between the two ligand scaffolds (N-H) and the betweeen the ligand scaffold and the metal complex (M-H). We found that the copper complxes can reach 5 diffrent oxidation states via oxidation/reductions of the ligand scaffold and/or the metal ion. We also observed that these cmplexes are able to catatalyze the oxidaiton of alcohols to aldehydes (or ketones) via an unusal mechanism for galactose-oxidase model systems.<br/>We also will describe the synthesis and structural characterization of Cu and Ni complexes bearing tridentate ligands (redox-active with H-bodning groups), in which the metals adopt a square-planar strucutre with 3 coordination positions occupied by the tridentate scaffold and an equatorial position by an external anion (hydroxide, acetate, methoxide, chloride). The electrochemistry and the reactivity of these metal complexes will be also analyzed.

Copper complexes bearing redox active ligands with tunable H-bonding interactions: Synthesis, structure, and reactivity

2019 Fall National Meeting

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