Synthesis and Characterization of a Family of Novel Aluminum Complexes of Nitroxide-Based Redox-Active Ligands
Date of Award
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Bachelor of Arts
Chemistry & Biochemistry
Christopher R. Graves
Aluminum is significantly cheaper, more abundant, and more environmentally friendly than metals historically used in redox catalysis. However, the chemistry of aluminum is primarily defined by its stability in the A1(III) state. In order to impart redox-ability onto an aluminum complex, redox-active ligands can be coordinated to the aluminum center. The development of aluminum complexes implementing redox-active ligands has the potential to significantly broaden the reaction chemistry of the element through expansion into redox-based chemistries. Herein, we report the synthesis of aluminum coordination complexes implementing redox-active nitroxide-based ligands. Specifically, we present our work on the N(^(Y)benzylᴿNO)₃A1 (Y = H, OMe, tBu; R = tBu, Ad) system where the nitroxide ligand extends multi-electron redox chemistry to the complex. Characterization including multinuclear NMR spectroscopy, X-ray diffraction, and reactivity studies using EPR spectroscopy and DFT computations will be presented.
Smith, Mackinsey A. , '19, "Synthesis and Characterization of a Family of Novel Aluminum Complexes of Nitroxide-Based Redox-Active Ligands" (2019). Senior Theses, Projects, and Awards. 242.