Events in inorganic chemistry.

C-H functionalization inspired by copper enzymes

Abstract: High-valent Cu(III) complexes have long been proposed as important intermediates in biological redox processes and organic transformations involving the activation of C-H bonds. However, the proposed high-valent Cu(III) intermediates often elude detection due to their fleeting lifetimes. In the first part of my talk, I will present a series of dicopper (II,III) coordination complexes as models to understand the reactivity of NO and NO2- at dicopper enzymes.

Control of Reaction Outcome by Iron Oxygenases

Enzymes that use iron cofactors to activate molecular oxygen for hydroxylation, halogenation, desaturation, epoxidation, fragmentation, and peroxidation of unactivated carbon centers must guide their very reactive intermediates down preferred reaction paths to their specific outcomes. Our growing understanding of the general and enzyme-specific control strategies used by these enzymes has enabled the development of new catalytic capabilities and provided a roadmap for deployment of these enzymes in biocatalysis.

Molecular Quantum Information Science with Electron Spins

Abstract: Quantum technologies based on molecular electron spin coherence afford unique potential in miniaturization, spatial localization, and tunability through synthetic chemistry and our ability to leverage and manipulate more complex biological systems. However, many applications within molecular quantum information science hinge on prolonged spin relaxation, a process that effectively leaks quantum information into the environment. Additionally, applications such as quantum sensing with molecular quantum bits (qubits) have only recently undergone exploration.

The missing piece: in situ diffraction for catalytic understanding

Abstract: For decades the materials paradigm has been a linear process used to connect structure to properties and performance. However, this wrongfully assumes that the operating conditions under which the materials work do not affect the structure measured under ambient or mild conditions. In this work, several oxygen transport membranes have been studied under industrially relevant conditions for the partial oxidation of methane via in situ neutron and synchrotron diffraction.

Intercalation, Oxidation, and Bond Formation in Metal Chalcogenides

Abstract: 1D or 2D metal chalcogenide exhibit a plethora of interesting properties ranging from magnetism and superconductivity to catalysis. We developed a unique set of hybrid compounds composed of infinite 1D or 2D iron-chalcogenide fragments and 0D coordination complexes. In this way the magnetic interactions and tunability can be segregated into two different sublattices of a hybrid material. Utilizing coordination chemistry methodology to tune the molecular amine complexes we can manipulate the composition structure and properties of the hybrid materials.

f-Block Metal–Arene Interaction: Dual Reactivity at Metal and Arene

The metal–arene interactions motivated the advancement of chemical bond theory, and enabled a wide range of applications in synthesis and catalysis. In addition, ligand designs incorporating metal–arene interaction led to breakthroughs in stabilizing unusual oxidation states, and empowering small molecule activation and catalysis. Our group focuses on utilizing f-block metal-arene interactions in synthesis and catalysis.

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