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 …

The metal centres in metalloenzymes and molecular catalysts are responsible for the
rearrangement of atoms and electrons during complex chemical reactions, and they enable …

X-ray free-electron lasers (XFELs) and table-top sources of x-rays based upon high
harmonic generation (HHG) have revolutionized the field of ultrafast x-ray atomic and …

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 …

This review provides an overview of the different methods and computer codes that are used
to interpret 2p x-ray absorption spectra of 3d transition metal ions. We first introduce the …

Reliably identifying short-lived chemical reaction intermediates is crucial to elucidate
reaction mechanisms but becomes particularly challenging when multiple transient species …

A complete mechanistic picture for the photochemical release of bipyridine (bpy) from the
archetypal complex [Ru (bpy) 3] 2+ is presented for the first time following the description of …

X‐ray spectroscopy is one of the most powerful tools to access structure and properties of
matter in different states of aggregation as it allows to trace atomic and molecular energy …

We present the main specifications of the newly constructed Swiss Free Electron Laser,
SwissFEL, and explore its potential impact on ultrafast science. In light of recent …

The past 3–5 years have witnessed a dramatic increase in the number of time-resolved X-
ray spectroscopic studies, mainly driven by novel technical and methodological …