Rapid Intra-Ionic Electron Transfer for Halide Oxidation

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  • Kober, Erin
    • College of Arts and Sciences, Department of Chemistry
Abstract
  • Halogen atoms and halide ions are particularly relevant in environmental chemistry, membrane chemistry, photocatalysis, and solar energy conversion. The focus of this thesis is to study photo-initiated halide oxidation in order to subsequently generate halogen atoms in solution. Molecular photocatalysts capable of absorbing visible light are essential for facilitating the electron transfer required for halide oxidation. In this work, a highly charged cyclometalated iridium(III) photocatalyst was designed to provide favorable electrostatic interactions with halide ions. These interactions were exploited to enhance halide selectivity and to promote rapid intra-ionic electron transfer for iodide, bromide, and chloride oxidation. Chapter 1 examines the effects of such interactions on underlying excited-state electron transfer mechanisms. This study further investigates the intimate relationship between photocatalyst design and halide stabilization.
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  • In Copyright - Educational Use Permitted
Advisor
  • Meyer, Gerald J.
  • Dempsey, Jillian L.
  • Miller, Alexandar J.M
  • Nicewicz, David A.
Degree
  • Master of Science
Degree granting institution
  • University of North Carolina at Chapel Hill Graduate School
Graduation year
  • 2021
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