catena-Poly[[[aqua­copper(II)]-μ-(bi­phenyl-2,2′-di­carboxyl­ato)-μ-[N,N′-bis­(pyridin-4-yl)urea]] 1.25-hydrate]

A divalent copper two-dimensional coordination polymer, {[Cu(H₂O)(diphenate)(bis­(4-pyrid­yl)urea)]·1.25H₂O}_n, was structurally characterized by single-crystal X-ray diffraction.

Di­ammonium potassium citrate, (NH₄)₂KC₆H₅O₇

The crystal structure of di­ammonium potassium citrate has been solved and refined using laboratory X-ray powder diffraction data and optimized using density functional theory techniques.

Tris(ethane-1,2-di­amine-κ²N,N′)zinc(II) tetra­chlorido­zincate(II)

The crystal structure of the title compound is consolidated by N—H⋯Cl and C—H⋯Cl hydrogen bonding inter­actions.

[1,2-Bis(diiso­propyl­phosphan­yl)ethane-κ²P,P′](2-fluoro-N-{[(2-fluoro­phen­yl)aza­nid­yl]carbon­yl}anilinido-κ²N,N′)nickel(II)

The Ni^II atom in the title compound shows a distorted square-planar P₂N₂ coordination set provided by two bidentate ligands.

2-(2-Eth­oxy-2-oxoacetamido)­benzoic acid

The title compound has a nearly planar geometry. In the crystal, the mol­ecules are assembled into chains parallel to the [11] direction by O—H⋯O and C—H⋯O hydrogen bonds

2,3-Di­methyl-1H-imidazol-3-ium chloride

The title compound crystallizes in an ortho­rhom­bic unit cell with a single cation–anion pair in the asymmetric unit. Hydrogen bonding appears to be the dominant inter­molecular force between the individual ions, forming extended networks.

Di­propyl­ammonium 4-amino­benzene­sulfonate

In the title mol­ecular salt, N–H⋯O and N–H⋯(O,O) hydrogen bonds connect the components into a three-dimensional network.

2,3-Di­methyl-1H-imidazol-3-ium benzene­sulfonate–1,2-di­methyl-1H-imidazole co-crystal

The title compound exists with one protonated imidazolium ring, one neutral imidazole ring, and a benzene­sulfonate anion in the asymmetric unit. The imidazole rings are held together through hydrogen bonding via a protonated nitro­gen on the ring.

6,7-Di­hydro-5H-pyrrolo­[1,2-a]imidazole

In the title compound, the pyrrolidine ring fused to the imidazole ring has an envelope conformation.

2-[3-(4-Chloro­phen­yl)-5-(4-fluoro­phen­yl)-4,5-di­hydro-1H-pyrazol-1-yl]-5-[(4-fluoro­phen­yl)diazen­yl]-4-methyl­thia­zole

Pairs of mol­ecules related by inversion symmetry are linked by inter­molecular C—H⋯F contacts with R(8)₂² geometry.

Di­chlorido­bis­[2-(pyridin-2-yl-κN)-1H-benzimidazole-κN³]nickel(II) monohydrate. Corrigendum

Corrigendum to IUCrData (2020), 5, x200040.