Intersystem crossing (ISC), formally forbidden within nonrelativistic quantum theory, is the
mechanism by which a molecule changes its spin state. It plays an important role in the …

Recently we assisted a strong renewed interest in the fascinating field of molecular spin
crossover complexes by (1) the emergence of nanosized spin crossover materials through …

Electrons are the workhorses of solar energy conversion. Conversion of the energy of light to
electricity in photovoltaics, or to energy-rich molecules (solar fuel) through photocatalytic …

Crucial to many light-driven processes in transition metal complexes is the absorption and
dissipation of energy by 3 d electrons,,,. But a detailed understanding of such non …

We review the tremendous advances in ultrafast X-ray science, over the past 15 years,
making the best use of new ultrashort X-ray sources including table-top or large-scale …

K-fluorescence X-ray emission spectroscopy (XES) is receiving growing interest in all fields
of natural sciences to investigate the local spin. The spin sensitivity in Kβ (Kα) XES stems …

This review is focused on free-electron lasers (FELs) in the hard to soft x-ray regime. The
aim is to provide newcomers to the area with insights into: the basic physics of FELs, the …

Conspectus The properties of transition metal complexes are interesting not only for their
potential applications in solar energy conversion, OLEDs, molecular electronics, biology …

Light-driven molecular reactions are dictated by the excited state potential energy
landscape, depending critically on the location of conical intersections and intersystem …

Capturing the evolving geometric and electronic structure in the course of a chemical
reaction or biological process is the principal aim of time-resolved X-ray spectroscopies …