Oxidative Coupling Reactions of Phenols and Azines Via Cationic and Radical Intermediates

The photochemical oxidative coupling of phenols with a range of coupling partners will be described. Even though the reaction likely involves radical intermediates, selectivity can be controlled by selecting coupling partners with different oxidation and nucleophilicity profiles. In addition, the use of donor acceptor complexes permit coupling with partners that have lower oxidation potentials than the phenols. The use of solid photocatalysts and the removal of product to prevent overoxidation will be also be outlined. 

Type of Event:

Student Reasoning about Molecular Structure and Behavior in Organic Chemistry

Reasoning about structure, reactivity, and chemical processes is a critical competency for organic chemistry students. Yet many students cannot fully interpret or explain the underlying chemical reasoning behind the many representations we use to depict chemical phenomena. We need to know more about how to scaffold students reasoning as they learn to translate and make meaning of the symbols and language of organic chemistry.

Type of Event:

Integrating Field Studies and Laboratory Experiments to Investigate the Processes and Climate Impacts of Atmospheric Pollutants

Atmospheric pollutants, ranging from traditional organic aerosols to emerging contaminants such as nanoplastics and per- and polyfluoroalkyl substances (PFAS), play critical roles in air quality, climate forcing, and environmental health. Yet their sources, atmospheric transformations, transport pathways, and impacts remain poorly constrained.

Type of Event: