A cadmium(II) compound, prepared by reaction of Cd(NO₃)₂·4H₂O with naphthalene-1,4-dicarboxylic acid and bis[4-(2-methylimidazol-1-yl)phenyl] ether in a mixture of H₂O and dimethylformamide, possesses a fourfold interpenetrating diamond-like three-dimensional framework. The compound exhibits strong fluorescence emission in the solid state and excellent photocatalytic activity for the degradation of methylene blue (MB) at room temperature.

Cocrystals of the antimalarial drug 11-azaartemisinin (11-Aza) with salicylic acid (SalA) were reported recently and showed an enhanced dissolution rate. The use of bromo-substituted SalA compounds has now allowed the isolation of a larger family of these 1:1 cocrystals. All the structures involve molecular pairs with (8) heterosynthons between the 11-Aza lactam functionality and the benzoic acid group that are organized into highly preserved 2₁ stacks. These are organized into either isostructural (5-BrSalA) or modified arrangements (4-BrSalA and 3,5-Br₂SalA), with varying degrees of homostructurality compared to the parent SalA cocrystal.

Theoretical and structural studies have been carried out on bis(2-nitrophenyl) selenide, bis(2-aminophenyl) selenide, and bis(2-aminophenyl) telluride.

A rare-earth-containing compound, Yb₃AlSb₃ (Ca₃AlAs₃-type structure), has been successfully synthesized within the Yb–Al–Sb system through flux methods. The crystal structure features infinite corner-sharing AlSb₄ tetrahedra, [AlSb₂Sb_2/2]⁶⁻, with Yb²⁺ cations residing between the tetrahedra to provide charge balance.

A novel Ruddlesden–Popper-related compound, Gd₃Ba₂Fe₄O₁₂, has been synthesized. The crystal structure was determined via single-crystal X-ray diffraction. The compound shows the unique octahedral rotation scheme related to the oxygen-deficient structure.

Two new main-group metal–organic frameworks (MOFs) based on the semi-rigid tetracarboxylic acid 5,5′-methylenebis(2,4,6-trimethylisophthalic acid) were prepared under hydrothermal conditions and characterized. The Ba complex reveals a three-dimensional flu network formed via bridging tetranuclear SBUs, while the Pb complex displays a three-dimensional framework with an sqp topology based on one-dimensional metal chains. The luminescence properties of both complexes have been investigated in the solid state.

Three isatin derivatives were synthesized, crystallized by the slow-evaporation technique, characterized by ¹H and ¹³C NMR spectroscopy, and analysed by the single-crystal X-ray diffraction (XRD) method. Quantum chemical parameters were calculated and the druglikeness and bioactivity scores of the compounds were predicted. The activities of these isatin derivatives against bacterial and fungal strains were determined using the well-diffusion assay method. Molecular docking studies were carried out to predict the binding mode of the isatin compounds with the penicillin binding protein enzyme.

The crystal structures of rubescin D and monadelphin A, bioactive molecules of the vilasinin and gedunin classes of limonoids, respectively, are reported. The synthons involved in the packing modes are analyzed on the basis of their occurrences in compounds from the Cambridge Structural Database displaying the same moieties. The effects of these synthons are determined by comparing the supramolecular arrangements of both compounds with those of structures having the same skeleton but different substituents.