Events in inorganic chemistry.

Electric Field Effects on the Hydrogen Atom Bond Dissociation Free Energy of Manganese Imido Complexes

Local electric fields can interact with dipoles and net charges of reactants, products, and transition states to impart enhanced reactivity in enzymes, at surfaces, and have more recently been investigated at molecular systems. At molecular systems, the incorporation of charged cationic functionalities can generate equivalent internal electric fields that tune both pKa and E1/2.

Earth-Abundant Molecular Catalyst Systems for the Reduction of Dioxygen and Carbon Dioxide

Abstract: The steady increase in anthropogenic carbon dioxide (CO2) emissions and corresponding atmospheric concentrations continues to generate interest in using CO2 as a liquid fuel and commodity chemical precursor. The conversion of CO2 has the dual benefit of addressing its associated negative environmental effects and the diminishing supply of petrochemical feedstocks.

Tuning the Redox Properties of the Uranyl Ion with Heterobimetallic Chemistry

Incorporation of Lewis acidic, redox-inactive metal ions into multimetallic structures has emerged as a viable strategy for systematic tuning of redox-active species. Most work in the field has examined redox catalysis by first-row transition metals, inspired by the presence of a redox-inactive Ca2+ ion in the Oxygen Evolving Complex (OEC) of Photosystem II (PSII).

Controlling Labile Metal Ions in Biological Systems

The control of both endogenous and exogenous labile metal ions in biological systems has important implications in the field of medicine. In this presentation, we will discuss our efforts to harness labile ions in order to control their downstream biological effects. The first part of this presentation will describe small molecules that can modulate mitochondrial calcium uptake. By controlling mitochondrial calcium uptake, these compounds can preserve viability under conditions of cellular stress.

Coordination chemistry of Mn(I) catalysts

Abstract: My group studies the coordination chemistry and reactivity of novel Mn, Fe, and Ru complexes with the goal of designing sustainable catalysts for chemically reversible transformations involving molecular hydrogen. For example, we studied the photochemical production of dihydrogen from water using a tetrameric Mn(I) complex and made some interesting discoveries along the way. In addition, a significant effort in my group is ligand design and synthesis where our main goal is to bring out the unique properties of various transition metals (such as Mn, Fe, and Ru).

Pages

Subscribe to RSS - Inorganic Seminar