Barbara Procacci is a chemist whose work includes time-resolved nuclear magnetic resonance and infrared spectroscopy of photochemical reactions. Her University of York profile identifies mechanistic studies of light-induced transformations in metal complexes and development of NMR methods for following fast reactions.[ref]
The experimental strategy couples an initiating event to a later structural probe. A light pulse can perturb a molecular system; a measurement at a controlled delay then asks which products or intermediates are present. Repeating the measurement over delays connects spectral assignments with a reaction time course. A single final spectrum would lose that ordering information.
Procacci coauthored the2022 RNA hairpin refolding paper, which combines an infrared temperature jump with delayed spectroscopic observations during melting and cooling.[ref]
Measuring RNA UNCG Tetraloop Refolding Dynamics Using Temperature-Jump/Drop Infrared Spectroscopy by C. P. Howe and others. Title-page byline; Abstract; experimental method
Her contribution thus sits at the interface between a physical perturbation and a chemical interpretation of the response. An observed transient band must be related to a molecular change and to the measurement's timing; its occurrence after a pulse alone does not identify a unique reaction mechanism.
Articles by others on the same topic
There are currently no matching articles.