Metal complexes have played a critical role in the study of charge transfer and transport since the pioneering work of Taube and co-workers in the 1950s. These are fantastic model systems – by varying the metal, coordination number, coordination geometry, or ligand set, the electronic coupling through or between metal/redox-sites, as well as any inner-sphere reorganization energy contributions to the Marcus electron transfer rates, can be tuned. Indeed, much has been learned about charge <i>transfer</i> from fundamental studies of metal-containing mixed-valence complexes. However, related charge <i>transport</i> processes require further experimental investigation to construct and/or validate theoretical frameworks, in particular at the single-molecule level in systems where transport can occur through multi-step tunneling mechanisms. To this end, we will present synthetic efforts towards new multi-site redox-active molecular wires that are amenable to single-molecule transport studies, and related electrochemical investigations.

Extended molecular materials constructed from redox-active building blocks

2019 Fall National Meeting

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