The project reported focuses on the synthesis of pyridyl compounds containing methylpyridine or quinoline moieties to be used as Mn ligands. The purpose for this project is to measure the exchange coupling between the, hypothetically, mono-μ-oxo bridged Mn ions for each synthesized complex. Additionally, we will use density functional theory to investigate the magnetic and electronic properties of these complexes. Previous research, by the group of Kovacs, highlighted sulfur-coordinated molecules which were reported to have a wide range of exchange coupling values, despite the complexes being very structurally similar. As such, we are investigating to see if exchange coupling values can be tuned through simple structural modifications. We have successfully begun syntheses for three different mono-μ-oxo bridged dimers with pyridine, methylpyridine, and quinolone moieties. We hope that our work will allow us to make reasonable predictions regarding the relationship between structure and exchange coupling which we hope will aid our understanding behind the structure and function of bioinorganic enzymes such as: the oxygen evolving complex, class 1b ribonucleotide reductase, and manganese catalase.

Synthesis of pyridyl compounds to mimic bioinorganic enzymes

2019 Spring National Meeting

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