The crystal structure of the benzene monosolvate of the well known organic diphosphite ligand C₄₆H₄₄O₈P₂ (BIPHEPHOS) is reported for the first time. Single crystals were obtained from a benzene solution after layering with n-heptane at room temperature.

A catalog of techniques, tips, tricks, and encouragement for growing crystals suitable for X-ray crystallography.

In situ neutron diffraction is demonstrated as a suitable technique to track phase evolution during synthesis of layered oxide compounds. The synthesis of a series of cathode materials for Li-ion batteries with different Ni/Mn ratio is investigated, in batches comparable to standard laboratory conditions, demonstrating the delayed onset of lithiation with increasing Mn content.

This paper reports the successful implementation of a method that enables the measurement of liquid–liquid and liquid–vapour X-ray reflectivity (XRR) curves using simply a fixed, horizontal source beam, a vertical translation stage and a two-dimensional detector. It will enable studies of liquid interfaces at sources lacking liquid diffractometers, especially ultra-fast XRR measurements via pump–probe techniques at X-ray free-electron lasers.

The article of Sommer [Acta Cryst. (2024), C80, 337–342] provides a concise and effective introduction to the subject of growing crystals suitable for structure determination.

In 2,3-di(thio­phen-2-yl)pyrido[2,3-b]pyrazine the thienyl rings are inclined to the mean plane of the pyrido­pyrazine moiety by 6.16 (7) and 86.66 (8)°, where as in the bromo derivative, 7-bromo-2,3-bis­(thio­phen-2-yl)pyrido[2,3-b] pyrazine, the corresponding dihedral angles are 33.29 (11) and 19.84 (9)°.

Pump–probe experiments are possible on liquid interfaces using the LISA instrument at P08 beamline PETRA III, DESY. The time scales available range from 38 ps to seconds.

An average statistical structure is presented for pyrrhotite 5C. An order–disorder structure description is proposed for the intermediate pyrrhotites of which 5C is an end member.

The charge-neutral title compound is a low-spin complex with a moderately distorted pseudo­octa­hedral coordination environment of the metal ion. As a result of the cone shape, the mol­ecules are stacked in one-dimensional columns that are bound by weak hydrogen bonds into layers, which, in turn, are arranged in a three-dimensional lattice bound by weak inter­layer C—HCl inter­actions.

The synthesis of molecular Borromean rings and other links is an active area of chemical research. Hypothetical 1-, 2- and 3-periodic molecular structures are described with the Borromean property that, although no two rings or chains are linked, the structures are interlocked and do not fall apart.