Re-refinement of dineodymium tris­[sulfate­(VI)] tetra­hydrate

Re-refinement of [Nd₂(SO₄)₃(H₂O)₄] led to higher precision and accuracy of the structure model, including localization of all H atoms.

Aqua­(ethanol-κO)tris­[4,4,4-tri­fluoro-1-(4-propoxyphen­yl)butane-1,3-dionato(1−)-κ²O,O′]europium(III)

The coordination number of the central Eu^III ion is 8, defined by three bidentate β-diketonato ligands, an aqua ligand and an ethanol ligand.

[(1,2,5,6-η)-Cyclo­octa-1,5-diene]bis­(1-methyl-3-propylimidazol-2-yl­idene-κC)iridium(I) tetra­fluorido­borate

The Ir^I atom is coordinated by a bidentate cyclo­octa-1,5-diene (COD) ligand and two N-heterocyclic carbene ligands, leading to a distorted square-planar coordination environment.

Bis{μ-1,3-bis­[dimeth­yl(pyridin-3-yl)sil­yl]propane-κ²N:N′}bis­[di­iodido­zinc(II)] from synchrotron data

In the title Zn^II complex, the 1,3-bis­(di­methyl­silyl-3-pyridine)­propane ligands bind to two Zn^II ions in a horse-shoe fashion to form a centrosymmetric dimeric 24-membered macrocycle, which further assembles into a supra­molecular structure via weak I⋯H inter­actions.

1-(4-Bromo­phen­yl)-4,5-di­phenyl-2-(1H-pyrrol-2-yl)-1H-imidazole

A 1,2,4,5-tetra-substituted imidazole compound containing pyrole, 4-bromo­phenyl and phenyl groups has been synthesized in a four-component Debus–Radziszewski reaction of 1,2-diketone, aromatic aldehyde, aromatic amine and ammonium acetate

2-Cyano-N′-[(1E)-1-(3,4-di­meth­oxy­phen­yl)ethyl­idene]acetohydrazide

The mol­ecule of the title compound is nearly planar. In the crystal, the packing of mol­ecules is mainly ensured by N—H⋯O hydrogen bonds, which form R₂² (8) graph-set motifs.

rac-4H,5H,6H,7H,8H,9H,10H,11H-Cyclo­deca­[d][1,2,3]selena­diazol-4-ol

Mol­ecules of the title compound, C₁₀H₁₆N₂OSe, adopt a chair conformation and are connected via hydrogen bonds into centrosymmetric dimers. C—H⋯O hydrogen bonds inter­connect the dimers.

Orthorhombic polymorph of 4-(2,2′:6′,2′′-terpyridin-4′-yl)aniline

Crystallographic data for the title compound, C₂₁H₁₆N₄, are reported herein. The compound was recrystallized from a methanol/aceto­nitrile solvent system at 298 K. It crystallizes in the Pca2₁ space group at 100 K and displays inter­molecular hydrogen bonding, through N—H⋯N contacts, and π–π inter­actions.

Prop-2-enyl 6-amino-5-cyano-4-(4-iso­propylphen­yl)-2-methyl-4H-pyran-3-carboxyl­ate

In the title compound, the 4H-pyran ring adopts a boat conformation. The dihedral angle between the phenyl and pyran rings is 87.8 (18)°. In the crystal, mol­ecules are linked by N—H⋯O and N—-H⋯N hydrogen bonds.

2-(3-(4-Bromo­phenyl)-5-{3-[5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazol-4-yl]-1-phenyl-1H-pyrazol-4-yl}-4,5-di­hydro-1H-pyrazol-1-yl)-4-(4-chloro­phenyl)-1,3-thiazole. Corrigendum

Corrigendum to IUCrData (2018), 3, x180443.