My research focuses on the development of ultrafast spectroscopy techniques to elucidate how molecular dynamics affects chemical reactions. One such technique is the development of a tunable broadband IR source which spans more than an octave. A large bandwidth and high temporal resolution in mid-IR regime allow us to study complex systems with high sensitivity and accuracy. Proton-coupled electron transfer (PCET) reactions are a particular subset of chemistry for which this spectroscopic method is ideally suited. PCET reactions are ubiquitous throughout chemistry in biological settings as well as in chemical synthesis. For example, the oxygen evolving complex (OEC) in photosystem II is responsible for the oxidation of water. The PCET process has been suggested as the main pathway through which water is oxidized in OEC. I study model systems that undergo self-exchange PCET process that mimic the tyrosine and histidine charge transfer mechanism in OEC. In order to better understand the mechanics of the reaction process, we are examining the vibrational ground state potential energy surface through infrared pump-probe and 2D techniques.