The following articles are a selection of those recently accepted for publication in Acta Crystallographica Section E: Crystallographic Communications.
Crystal structure of bis(2-methyl-1H-imidazol-3-ium) μ-oxalato-bis[n-butyltrichloridostannate(IV)]
The SnIV atom in the centrosymmetric anion of the title salt is coordinated in a distorted octahedral fashion by two O atoms of the bridging oxalate moiety, a C atom of the butyl chain and three Cl atoms. The bis(2-methyl-1H-imidazol-3-ium) cation forms hydrogen bonds with Cl and oxalate O atoms yielding  chains.
Crystal structure of 16-ferrocenemethyl-3β-hydroxyestra-1,3,5(10)-trien-17-one: a potential chemotherapeutic drug
A new ferrocene complex, 16-ferrocenemethyl-3β-hydroxyestra-1,3,5(10)-trien-17-one, has been synthesized and structurally characterized by single-crystal X-ray diffraction techniques. The ferrocenemethyl group is positioned at the β face of the estrone moiety; as a result, a new stereogenic center is formed leading to an R stereochemical configuration. No head-to-tail hydrogen bonding is observed in the crystal packing, as is the case in estrone and other derivatives.
1-(Pyridin-2-yl)-3-(pyridin-3-yl)propane-1,3-dione: crystal structure and Hirshfeld surface analysis
The title molecule, featuring an intramolecular O—H⋯O hydrogen bond, is non-planar as seen in the dihedral angle between the pyridyl rings of 7.45 (7)°. In the crystal, supramolecular chains are formed via π(pyridin-2-yl)–π(pyridin-3-yl) interactions.
Synthesis and crystal structure of NaMgFe(MoO4)3
The iron molybdate NaMgFe(MoO4)3 is isostructural with α-NaFe2(MoO4)3 and its structure is built up from [Mg,Fe]2O10 units of edge-sharing [Mg,Fe]O6 octahedra which are linked to each other through the common corners of [MoO4] tetrahedra. The resulting anionic three-dimensional framework leads to the formation of channels along the  direction, where the Na+ cations are located.
Hydrogen bonding in the crystal structure of the molecular salt of pyrazole–pyrazolium picrate
A 2:1 organic salt formed from pyrazole and picric acid was obtained from methanol solution. In the crystal, N—H⋯O hydrogen bonds give rise to a hydrogen-bonded chain along . Adjacent  chains are linked by a weak C—H⋯O interaction.