Events in inorganic chemistry.

Redox Behavior and Reactivity of Porphyrin-Walled Nanocages and Other Molecular Materials

Abstract: Nanoporous materials, such as MOFs, COFs, and discrete nanocages, are increasingly targeted as tunable supports for molecular electrocatalysts. The pores of these materials provide new opportunities for tuning catalytic activity but also raise challenging mechanistic questions since the confined pore environment must rearrange to accommodate the movement of charge during electrocatalytic processes. This talk will describe the development of porphyrin-walled nanocages as soluble model structures for examining how nanoconfined environments respond to redox changes.

Vanadium Alkylidenes for Olefin Metathesis

Abstract: Olefin metathesis is a widely used synthetic method for the synthesis of chemicals employed in daily life, including plastics, household chemicals, agrochemicals, and high-grade fuels, including biofuels from renewable, sustainable feedstock. The current production of fine and commodity chemicals involving olefin metathesis exclusively relies on catalysts based on second- and third-row transition metals, such as Mo, Ru, W, and Re.

Designing Battery Electrode Architectures across Length Scales: Some Lessons Learned from Li-ion and "Beyond Li" Chemistries

Abstract: The design and operation of rechargeable batteries is predicated on directing flows of mass, charge, and energy across multiple interfaces. Understanding such flows requires knowledge of atomistic and mesoscale diffusion pathways and the coupling of ion transport with electron conduction and stress gradients across length scales. Using multiple polymorphs of V2O5 as model systems, I will discuss our efforts to develop an Angstrom-level view of diffusion pathways using single-crystal X-ray diffraction studies of topochemical transformations.

Design Principles for Metalloprotein Chemistry

Abstract: Metalloproteins catalyze some of Nature’s most amazing and difficult chemical transformations. One such transformation, of interest to our laboratory, is the use of a high valent Fe-based oxidant to facilitate the functionalization of a traditionally inert C–H bond. Since this chemistry is vital to a variety of biochemical pathways, metalloproteins are recognized for their potential to build natural products with medical, environmental, and industrial relevance, and to degrade environmental contaminants.

Exploring the rich reactivity of group 13 metal coordination complexes of multidentate nitroxide-based ligands

Abstract: The synthesis of metal coordination complexes of non-innocent ligands aims to expand the reactivity profile of the metals. Our group has been interested in the preparation of Group 13 (Al, Ga, and In) coordination complexes implementing non-innocent ligands, with an end goal of realize new ways of making and breaking chemical bonds.

Pages

Subscribe to RSS - Inorganic Seminar