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 …

Time-resolved X-ray diffraction provides direct information on three-dimensional structures
of reacting molecules and thus can be used to elucidate structural dynamics of chemical and …

We summarize exploratory work on multigrain crystallography. The experimental
arrangement comprises a monochromatic beam, a fully illuminated sample with up to …

We report the spin state photo-switching dynamics in two polymorphs of a spin-crossover
molecular complex triggered by a femtosecond laser flash, as determined by combining …

Two conformational polymorphs of a donor–bridge–acceptor (DBA) dyad, p-(CH 3) 2 NC 6 H
4-(CH 2) 2-(1-pyrenyl)/PyCHDMA, were studied, where the electron donor (D) moiety p-(CH …

The rare observation of transient Rh··· Rh excimer formation in a single crystal is reported.
The estimated excited-state lifetime at 100 K is 2 ns, which makes it the shortest-lived small …

Ionic species often play important roles in chemical reactions occurring in water and other
solvents, but it has been elusive to determine the solvent-dependent molecular structure …

The excited-state structure of [CuI [(1, 10-phenanthroline-N, N′) bis (triphenylphosphine)]
cations in their crystalline [BF4] salt has been determined at both 180 and 90 K by single …

A comprehensive analysis of various properties derived from multiple high-resolution X-ray
diffraction experiments is reported. A total of 13 charge-density-quality data sets of α-oxalic …

The methods that have been developed to determine the three-dimensional crystal and
molecular structures while they are in metastable or short-lived photoactivated states are …