A5101818097- Metal-Catalyzed Oxygenation Mechanisms
- Vanadium and Halogenation Chemistry
- Inorganic Fluorides and Related Compounds
- Radical Photochemical Reactions
- Evolution and Paleontology Studies
- Fluorine in Organic Chemistry
- Bat Biology and Ecology Studies
- Oxidative Organic Chemistry Reactions
- X-ray Diffraction in Crystallography
- Wildlife Ecology and Conservation
- Crystallization and Solubility Studies
Georgia Institute of Technology
2023-2025
A cobalt photocatalyst for direct trifluoromethylation of (hetero)arene C(sp2)-H bonds is described and shown to operate via visible light activation a Co-CF3 intermediate, which functions as combined chromophore organometallic reaction center. Chemical oxidations previously reported (OCO)Co complexes containing redox-active [OCO] pincer ligand afford complex two oxidation states above Co(II). Computational spectroscopic studies are consistent with formulation the product...
A five-coordinate chlorovanadium species supported by two redox-active N-phenyl aminophenol ligands was prepared. Experimental and computational data support formulation of this complex as [(Phap)(Phisq)VIVCl], containing one dianionic [Phap]2- amidophenolate monoanionic [Phisq]•- iminosemiquinonate radical. Exposure [(Phap)(Phisq)VIVCl] to O2 readily cleaves the O═O bond generate [(Phisq)(Phibq)VIV(O)Cl], an [Phibq] iminobenzoquinone, so 2e- oxidation is entirely ligand centered....