This talk will broadly focus on designing and investigating main-group and/or transition-metal based redox-active molecules, targeted for use in fundamentally new bond activation chemistry and energy applications. The first part will focus on the design of redox-active metal complexes bearing redox non-innocent ligands for use in either chemical or electrochemical energy storage applications. Here, the talk will mostly center on the design of new charge carriers for solution and slurry-based redox-flow battery applications for grid-scale energy storage.
Small molecule activation often requires both protons and electrons. This includes chemical transformations key to sustainable energy and environment e.g. reduction of H+, O2, CO2 and N2. Similarly, mono-oxygenation of organic molecules using molecular oxygen, a process often described as the Holy grail of chemistry, requires protons and electrons. Erstwhile mechanistic investigations on metallo-enzyme active sites which catalyses these reactions have revealed that the proton and electron delivery often occur in distinct chemical steps and in many cases, coupled, in the same steps.
"Following our discovery of the first dysprosium metallocenium cation, [Dy(Cpttt)2][B(C6F5)4], which is the vanguard of the new generation of high-temperature single-molecule magnets, we have been investigating the magnetic relaxation dynamics of various dysprosium-based single-molecule magnets (SMMs) by experimental and theoretical techniques. Here we present our recent results in unravelling the competing magnetic relaxation processes.”