Speaker
Description
The current status of project P2 “Ultrafast charge transfer and isomerization dynamics of molecules” will be presented. The goal is to resolve the early-stage dynamics of energy relaxation concomitant with structural rearrangements in Fe(CO)5 in the gas phase. Photoexcitation generates a metal-to-ligand charge transfer in Fe(CO)5 that launches a sequence of processes on time scales of 20-30 fs before the molecule dissociates after approximately 150 fs. The aim is to resolve these early steps with pump-probe valence-band photoelectron spectroscopy with femtosecond VUV pulses from high-order harmonic generation. The table-top source for this and an outline of the principles of higher harmonic generation and of the Fe(CO)5 experiments will be presented.