The study of mineral behavior at low and high temperatures and their properties using a combination of different methods has not become routine yet

The study of azoproite by Biryukov et al. [Acta Cryst. (2022), B78, 809–816) continues the systematic and complex investigation of the crystal structures, temperature behavior and magnetic properties of natural oxoborates.

A topological approach to reconstructive solid-state transformations and its application for generation of new carbon allotropes

A novel approach is proposed for the description of possible reconstructive solid-state transformations, which is based on the analysis of topological properties of atomic periodic nets and relations between their subnets and supernets. This approach is applied to generate 72 new carbon allotropes from the initial experimentally determined crystalline carbon structures and to reveal four allotropes whose hardness is close to diamond.

Arsenic(III) oxide intercalate with ammonium chloride: crystal structure revision and thermal characterization

The crystal structure model of intercalate NH₄Cl·As₂O₃·0.5H₂O is revised and the compound is shown unequivocally by X-ray diffraction and ¹⁵N solid-state NMR to be isostructural with KCl·As₂O₃·0.5H₂O.

Synthesis and structure of two novel trans-platinum complexes

The synthesis and structural characterization (XRD and NMR) of two new trans-platinum complexes are presented.

Proton tautomerism in 5-di­methyl­amino­methyl­idene-4-(o-,m-,p-hy­droxy­phenyl)­amino-1,3-thia­zol-2(5H)-ones: synthesis, crystal structure and spectro­scopic studies

Three 5-di­methyl­amino­methyl­idene-4-phenyl­amino-1,3-thia­zol-2(5H)-ones with an OH group in ortho-, meta- and para- positions on the phenyl ring were synthesized to study the structural changes occurring on prototropic tautomerism of the amidine system. All isomers exist solely in the amino tautomeric form.

Application of the method for visualization of noncovalent interactions in conformational polymorphs of four organic acids

The crystal structures of several polymorphic systems are analyzed via a method for the visualization of the variation of noncovalent contacts. Some new correlations were discovered which cannot be obtained by other methods.

Unusual flash cooling-induced phase in a crystal of tri­phenylsilanol

The unique phase in a tri­phenyl­silanol crystal induced by flash cooling is presented. Subsequently, gradual heating of the crystal leads to its original phase. The crystal is robust and the observed phase transformation is reversible on many consecutive flash cooling/heating cycles.