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Wednesday, April 26 • 8:30am - 10:00am
The Synthesis and Characterization of a Functionalized Metal-Ligand Complex, [Co(4-brbpy)3]3+

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Cobalt complexes formed from 2,2’-bipyridine (bpy) have been used to study electron transfer mechanisms, facilitate redox reactions in solar cells, and catalyze alkyne reduction reactions. However, relatively few reports present the preparation and use of functionalized cobalt-bpy complexes, particularly those that could be used as reactants for additional chemical synthesis. This poster presents a scheme for the synthesis and characterization of the as-yet unreported functionalized complex [Co(4-brbpy)3]3+ (4-brbpy = 4-bromo-2,2’-bipyridine). The synthesis of this complex follows closely to that previously published for the related complex [Co(4-fbpy)3]3+ (4-fbpy = 4-fluoro-2,2’-bipyridine). Characterization of the synthetic product will be undertaken via nuclear magnetic resonance (NMR), infrared (IR), and ultraviolet/visible (UV/vis) spectroscopies. The goal of this project is to prepare the target complex and to combine these findings with those obtained from earlier investigations of [Co(bpy)3]3+ to begin developing an understanding of how functionalization of the bpy ligand changes the properties of these complexes. Future experimentation will include the preparation and characterization of additional related complexes with different functionalizations, including isomers of these complexes, with the aim to uncover information about how the type and position of functionalization impacts the chemical and electronic structure of the complexes.


Wednesday April 26, 2017 8:30am - 10:00am
Concourse - Wilma Sherrill Center