Department Web-Page

Dr. Kenneth A. Goldsby
Faculty

Dr. Kenneth A. Goldsby

University Distinguished Teaching Professor

Ph.D. (1983) University of North Carolina at Chapel Hill Postdoctoral Associate (1983-1986) Ohio State University

Contact Information
Email:
goldsby@chem.fsu.edu
Office:
514 DLC
Lab:
537 DLC
Programs of Research
 Inorganic
Research Website

Research Interest

REDOX REACTIONS OF TRANSITION METAL COMPLEXES, PROTON-COUPLED ELECTRON TRANSFER, AND SURFACE MODIFIED ELECTRODES

Proton-coupled electron transfer reactions play essential roles in a variety of aqueous and biological redox processes; however, the overall redox mechanisms can be quite complex, involving multiple electron and proton transfers. Early work in our laboratory focused on the design of simple models for proton-coupled electron transfer reactions. By limiting the inner coordination sphere to one ionizable proton, we obtained complexes which exhibit a single one-electron/one-proton redox couple over relatively broad pH and potential regions.

Proton-Coupled Electron Transfer

Extending this chemistry to bimetallic complexes required the development of a family of ruthenium(II) complexes based on 2,6-bis-(N-pyrazoyl)pyridine and beta-diketonate ligands that exhibit reversible Ru(III/II) couples with potentials than can be tuned over a range of 600 mV by systematically varying the substituents on the ligands.

Ruthenium 2,6-Bis-(N-pyrazoyl)pyridine Diketonate Complexes

Given the ease of tuning the Ru(III/II) potentials, these complexes are attractive candidates for the redox-active monolayers, and subsequent work in our laboratory has involved the preparation of complexes with pendant thiol groups that can be used to form self-assembled monolayers at gold surfaces.

Self Assembled Monolayers