One of the grand challenges in chemistry has been to directly observe atomic motions
during chemical processes. The depiction of the nuclear configurations in space-time to …

We present an overview of experimental and theoretical investigations exploring the
dynamical evolution of Rydberg-to-valence character in the electronically excited states of …

All stages of the electrocyclic ring-opening of 1, 3-cyclohexadiene (CHD) were observed by
time-resolved photoionization-photoelectron spectroscopy. Spectra of the 1B state …

We aim to observe a chemical reaction in real time using gas-phase X-ray diffraction. In our
initial experiment at the Linac Coherent Light Source (LCLS), we investigated the model …

Density functional theory (DFT) is widely applied in calculations of molecules and materials.
Yet, it suffers from a well-known over-emphasis on charge delocalization arising from self …

Advances in x-ray free electron lasers have made ultrafast scattering a powerful method for
investigating molecular reaction kinetics and dynamics. Accurate measurement of the …

Time-resolved photoelectron imaging was used to study non-adiabatic relaxation dynamics
in N, N-dimethylisopropylamine, N, N-dimethylpropylamine and N-methylpyrrolidine …

The ultrafast structural motion linked to the charge transfer process in Rydberg excited N, N,
N′, N′-tetramethylmethylenediamine (TMMDA) has been monitored in real time using …

Two identical ionization centers, one on each nitrogen atom, make N, N′-
dimethylpiperazine an important model to explore how the transfer of a (partial) charge is …

The early stages of the ring opening reaction of 1, 3-cyclohexadiene to form its isomer 1, 3, 5-
hexatriene, upon excitation to the ultrashort-lived 1 B 2 1 state, were explored. A series of …