The transfer of charge at the molecular level plays a fundamental role in many areas of
chemistry, physics, biology and materials science. Today, more than 60 years after the …

The terms adiabatic and nonadiabatic, respectively, are used in many different contexts.
Whereas in classical thermodynamics, adiabatic refers to processes that occur without any …

The introduction of femto-chemistry has made it a primary goal to follow the nuclear and
electronic evolution of a molecule in time and space as it undergoes a chemical reaction …

We present a theoretical investigation of the near-edge X-ray absorption fine structure and
the Auger–Meitner decay spectra of ethylene and its cation. Herein, we demonstrate that our …

Time-resolved molecular imaging is a frontier of ultrafast optical science and physical
chemistry. In this article, we review present and future key spectroscopic and microscopic …

Through a combined experimental and theoretical approach, we study the nonadiabatic
dynamics of the prototypical ethylene (C 2 H 4) molecule upon π→ π* excitation with 161 nm …

Photoionized and electronically excited ethylene C2H4+ can undergo H-loss, H2-loss, and
ethylene–ethylidene isomerization, where the latter entails a hydrogen migration. Recent …

Dissociation of the ethylene cation is a prototypical multistep pathway in which the exact
mechanisms leading to internal energy conversions are not fully known. For example, it is …

We present a theoretical study of the nonadiabatic effects in ethylene cation C2H4+, the
simplest π radical cation, after photoexcitation to its three lowest doublet excited states. Two …

We present a combined experimental and computational study of the relaxation dynamics of
the ethylene cation. In the experiment, we apply an extreme-ultraviolet-pump/infrared-probe …