▪ Abstract Modern ultrafast spectroscopic techniques provide new opportunities to study
chemical reaction dynamics in liquids and hold the possibility of obtaining much of the same
detailed information available in gases. Vibrational energy transfer studies are the most
advanced of the investigations and demonstrate that it is possible to observe state-specific
pathways of energy flow within a vibrationally excited molecule (intramolecular vibrational
relaxation) and into the surrounding solvent molecules (intermolecular energy transfer) …