Redetermination of the crystal structure of the 3:1 urea–benzene-1,3,5-tri­carb­oxy­lic acid co-crystal by powder diffraction data

The redetermined structure of 3:1 urea/trimesic acid, 3CO(NH₂)₂·C₆H₃(CO2H)₃, has monoclinic (P2₁/c) symmetry. The compound has a hydrogen-bonding network structure of high inter­est for crystal engineering.

Crystal structure and Hirshfeld surface analysis of 4′-chloro-5-oxo-N-phenyl-3-(thio­phen-2-yl)-2,3,4,5-tetra­hydro-[1,1′-biphen­yl]-4-carboxamide monohydrate

In the crystal, inter­molecular N—H⋯O, O—H⋯Cl, O—H⋯O and C—H⋯O hydrogen bonds connect mol­ecules to form a three-dimensional network. The mol­ecules are further connected by C—H⋯π inter­actions and face-to-face π–π inter­actions into layers parallel to the (001) plane.

Synthesis and structure of 4-[(2,3,4,5,6-pentafluoro­phen­oxy)carbon­yl]phenyl 4-(dec­yloxy)benzoate

In the title compound, the dihedral angles between the central aromatic ring and its peripheral rings are are 76.57 (2) and 69.71 (3)° and the C10 alkyl chain adopts an extended conformation.

Crystal structure and Hirshfeld surface analysis of (Z)-N′-(4-meth­oxy­benzo[d]thia­zol-2-yl)-3,6-di-p-tolyl-1,2,4-triazine-5-carboximidamide

In the crystal, the mol­ecules are linked by inter­molecular C—H⋯O and C—H⋯N hydrogen bonds, forming sheets parallel to the (010) plane. Furthermore, mol­ecules are connected by C—H⋯π and π–π [centroid-to-centroid distance = 3.7380 (12) Å] inter­actions, forming ribbons along the a-axis direction.

Crystal structure of seladelpar, C₂₁H₂₃F₃O₅S, from synchrotron powder diffraction data and density functional theory

The crystal structure of seladelpar has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional theory techniques.

Synthesis and structure of 3-methylpyridinium 3-carb­oxy-5-nitrobenzoate monohydrate

A hydrated salt of 3-methyl­pyridine and 5-nitro­isophthalic acid has been synthesized using the reflux method. The crystal structure is consolidated by a network of significant inter­molecular inter­actions, including O—H⋯O, N—H⋯O, and C—H⋯O hydrogen bonds, along with additional π–π inter­actions, which collectively contribute to the robustness of the solid-state architecture.

Structure of bis­(tetra­ethyl­ammonium) molybdate dihydrate obtained by the reaction between ammonium molybdate and tetra­ethyl­ammonium hydroxide

The crystal structure of tetra­ethyl­ammonium molybdate dihydrate reveals two-dimensional layers of tetra­hedral molybdate mol­ecules bridged by water mol­ecules, with each Mo-oxo serving as a hydrogen bond acceptor.