forthcoming articles

High resolution crystal structures reveal that peptide bonds in α-helices exhibit a slightly more pronounced enol-like character than those in β-strands. This can go as far as peptide oxygen atoms in protein structures being protonated.

The development of Quantum Crystallography rests on the availability of reliable theoretical electron densities. This work demonstrates a non-negligible code dependence of these densities and warns about their blind use.

A review of plane-wave coherent X-ray diffraction imaging in small-angle X-ray scattering geometry is presented, together with a discussion of the new opportunities offered by fourth-generation synchrotron sources.

Developments in macromolecular crystallography now allow the use of microcrystals for structural analysis through advanced beamlines and techniques such as microcrystal electron diffraction and room-temperature crystallography. This review addresses methods of matching microcrystal preparation and sample delivery. The use of microcrystals enhances the possibilities in fields such as time-resolved crystallography.

This study establishes that hydrogen-, halogen- and chalcogen-bonding intermolecular and non-covalent intramolecular interactions are driven by a face-to-face orientation of electrophilic (charge-depleted) and nucleophilic (charge-concentrated) regions, which is at the origin of the specific geometries found in synthons and supramolecular motifs.