Research in the Hadt laboratory is broadly based in the area of physical inorganic chemistry. The group employs a wide range of steady state and time-resolved spectroscopies spanning many orders of magnitude in photon energy to understand the role(s) of transition metal electronic structure across interdisciplinary areas of chemistry, biology, and materials science. Currently, our research is focused on fundamental and applied studies of nonadiabatic dynamics in photophysics and catalysis. Emphases are on the stepwise molecular processes involved in forming and breaking chemical bonds. These elementary steps encompass electron transfer, proton transfer, proton-coupled electron transfer, spin crossover, and electron transfer-coupled spin crossover and constitute the underlying degrees of freedom for optimizing catalysis in diverse areas ranging from bioinorganic chemistry to solar energy conversion.