Size effect of the guest cation on the AlO₄ framework in aluminate sodalite-type oxides M₈[Al₁₂O₂₄](SO₄)₂ (M = Sr²⁺ and Ca²⁺) in the I43m phase

Synchrotron radiation powder diffraction measurements and probability density function analyses of aluminate sodalite-type oxides Sr₈[Al₁₂O₂₄](SO₄)₂ and Ca₈[Al₁₂O₂₄](SO₄)₂ of the cubic phases were performed. The rotation of AlO₄ in a tetrahedral framework was discussed.

Crystal structures of zinc(II) com­plexes with β-hy­droxy­pyri­dine­carboxyl­ate ligands: examples of structure-directing effects used in inorganic crystal engineering

The structure-directing effects of four O,O′-donor hy­droxy­pyri­dine­carboxyl­ate derivatives in their com­plexation with Zn^II have been investigated by single-crystal X-ray diffraction. One octahedral and two trigonal bipyramidal mononuclear com­plexes, as well as a pyridino­late-bridged dinuclear complex with octahedral geometry, were detected.

Structure–property relationships of molecular shape and orientation with com­pression and expansion of xylitol

Anisotropic com­pression of a high-density xylitol polymorph is inversely proportional to the molecular dimensions.

Polymorphs of phenazine hexa­cyano­ferrate(II) hydrate: supramolecular isomerism in a 2D hydrogen-bonded network

The crystal structures of two polymorphs of a phenazine hexa­cyano­ferrate salt/cocrystal are presented. The polymorphs are remarkably similar, both comprising two-dimensional hydrogen-bonded networks built from the same supramolecular units.

Symmetry analysis of complex magnetic structure in monoclinically distorted Er₃Cu₄Sn₄

The magnetic structure in monoclinic Er₃Cu₄Sn₄ was determined using high-resolution powder neutron diffraction, supported by symmetry analysis. The Er magnetic moments occupying different Wyckoff sites (2c and 4i) are found to order antiferromagnetically at different temperatures.

Structure, ferroelasticity and Goldilocks zone phase transitions in C₃H₅N₂Al(SO₄)₂·6H₂O

Precise analysis of the structure and phase transitions of an aluminium aqua complex salt is presented.

Novel aluminophosphate Na₆[Al₃P₅O₂₀] with the original microporous crystal structure established in the study of a pseudomerohedric microtwin

Microporous sodium aluminophosphate, Na₆[Al₃P₅O₂₀], with a new type of structure, is described as being built of octahedral rods arranged in two perpendicular directions.

Crystal structure and enantiomeric layer disorder of a copper(I) nitrate π-coordination compound

A new type of structure disorder has been found in the π-coordination compound and local structure modelling based on X-ray diffuse scattering data was performed.

Synthesis, crystal growth, characterization and DFT investigation of a nonlinear optically active cuminaldehyde derivative hydrazone

A cuminaldehyde derivative hydrazone crystallized in a noncentrosymmetric space with high transparent nature. The SHG efficiency of this specimen was determined as I_2ω = 96 mV, confirming its nonlinear optical character.

AB-stacked nanosheet-based hexagonal boron nitride

The structure of h-BN (generally considered to have an AA stacking sequence) has been reinterpreted as AB stacking, based on the classical theory of crystal growth. A growth mechanism is proposed for commercial h-BN platelets as `pressure-induced 2D growth' and for h-BN sheets on a substrate (in CVD or PVD approaches) as `substrate-induced 2D growth.

Crystal structure, hydrogen bonds and thermal transformations of super­protonic conductor Cs₆(SO₄)₃(H₃PO₄)₄

Single crystals of Cs₆(SO₄)₃(H₃PO₄)₄ were studied by neutron diffraction methods, optical polarization microscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy. The crystal structure, including hydrogen-bond networks, and transformations with changes in temperature are reported in com­parison with Cs com­pounds having relatively similar com­positions.

Structure of lithium tellurite and vanadium lithium tellurite glasses by high-energy X-ray and neutron diffraction

Structural and thermal properties of lithium tellurite glasses doped with vanadium are reported.

Crystal chemistry of lamprophyllite-group minerals from the Murun alkaline complex (Russia) and pegmatites of Rocky Boy and Gordon Butte (USA): single crystal X-ray diffraction and Raman spectroscopy study

Specific features of the crystal chemistry of lamprophyllite-related minerals are discussed, using the available literature data and the results of the single-crystal X-ray diffraction and Raman spectroscopic studies of several samples from the Murun alkaline complex (Russia) and Rocky Boy and Gordon Butte pegmatites (USA) presented here.

Polymorphism of di­methyl­amino­borane N(CH₃)₂-BH₂

The intermediate N(CH₃)₂-BH₂ aggregates either to dimers or trimers. Herein, the stability of the adducts is investigated experimentally and computationally, and the monoclinic crystal structure of [N(CH₃)₂-BH₂]₂ is provided.