Photoredox catalysis of organic reactions driven by iron has attracted substantial attention
throughout recent years, due to potential environmental and economic benefits. In this …

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 …

A new scientific frontier opened in 2009 with the start of operations of the world's first x-ray
free-electron laser (FEL), the Linac Coherent Light Source (LCLS), at SLAC National …

Time-resolved x-ray absorption spectroscopy (TR-XAS) has so far practically been limited to
large-scale facilities, to subpicosecond temporal resolution, and to the condensed phase …

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 …

Abstract Design-specific control over the transitions between excited electronic states with
different spin multiplicities is of the utmost importance in molecular and materials chemistry …

The past two decades have seen rapid developments in short-pulse X-ray sources, which
have enabled the study of nuclear and electronic dynamics by ultrafast X-ray spectroscopies …

It is known that excitation by visible light of the singlet metal-to-ligand charge-transfer
(1MLCT) states of Fe (ii) complexes leads to population of the lowest-lying high-spin quintet …

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 …

Starting from the late seventies, the progressively increased availability of synchrotron light
sources allowed the execution of experiments requiring a high X-ray flux in a continuous …