catena-Poly[[di­phenyl­tin(IV)]-di-μ-iso­thio­cyanato]: an unprecedented layered coordination polymer resulting from bridging κ²N:S thio­cyanato ligands

Di­phenyl­tin(IV) diiso­thio­cyanate, Ph₂Sn(NCS)₂, exhibits a new kind of inter­molecular association with loss of mol­ecular individuality and formation of a two-dimensional layer structure of octa­hedrally coordinated tin atoms linked via ambidentate κ²NS thio­cyanate ions.

Bis(azido-κN¹)bis­(2,2′-di­pyridyl­amine-κ²N¹,N^1′)iron(II) monohydrate

Distortions of the octa­hedral {N₆}-coordination of the Fe^II ion in the title complex Fe(dpa)₂(N₃)₂ are described in terms of bond-length and angle variations alongside to the different kind of inter­molecular hydrogen bonds between the azide ions and the dpa ligands of the complex and the water mol­ecule of crystallization.

Tri­phenyl­phospho­nium tri­chlorido­(tri­phenyl­phosphane-κP)cobaltate(II) benzene disolvate

The central atom of the complex anion is coordinated by one tri­phenyl­phosphane and three chlorido ligands. The negative charge is balanced by a tri­phenyl­phospho­nium cation. Two benzene solvent mol­ecules are also present in the asymmetric unit.

2-Amino-5-oxo-4-(thio­phen-2-yl)-5,6,7,8-tetra­hydro-4H-chromene-3-carbo­nitrile

In the crystal structure of the title compound, inter­molecular N—H⋯N and N—H⋯O hydrogen bonds form a two-dimensional supra­molecular network along the ac plane, contributing to the cohesion of the crystal.

3aH,4H,5H,8H,9H,9aH-Cyclo­octa­[d][1,3]dioxole-2-thione

The thio­nocarbonate of trans-cyclo­octenediol, C₉H₁₂O₂S, crystallizes with a 9/1 disorder in the position of the R,R and S,S-enanti­omers. As a result of trans-annulation, both rings adopt a twist conformation.

Tris(4-chloro­phen­yl) phosphate

In the title compound, the symmetric phosphate derived from para-chloro­phenol and phospho­ric acid, two of the three aromatic moieties adopt syn-orientation towards the P=O bond while the last chloro­phenol ring is pointing away from this bond. In the extended structure, C—H⋯O bonds connect the individual mol­ecules into sheets lying perpendicular to the crystallographic b axis.

Structural insights into 1,4-bis­(neopent­yloxy)pillar[5]arene and the pyridine host–guest system

The crystal structure of a neo­pentyl­oxypillar[5]arene with two pyridine mol­ecules encapsulated in the macrocyclic cavity is reported.

2,4-Di­chloro-6-{N-[2-(tri­fluoro­meth­yl)phen­yl]carboximido­yl}phenol

The title compound was synthesized by the condensation between tri­fluoro­methyl­aniline and di­chloro­salicyl­aldehyde by nucleophilic addition, forming a hemiaminal, followed by a dehydration to generate an imine. The compound crystallizes in an ortho­rhom­bic Pbca (Z = 8) space group with a dihedral angle of 44.70 (5)° between the two aromatic rings. In the crystal, the mol­ecules pack together to form a zigzag pattern along the c axis.

Ethyl (2RS,3SR,4RS)-1-ethyl-2-(furan-2-yl)-4-hy­droxy-5-oxopyrrolidine-3-carboxyl­ate

The crystal structure of a pyrrolidine analogue obtained from the stereoselective reduction of the enolic form of 4-hy­droxy-2-furyl-pyrrole­carboxyl­ate is described.

(10Z)-4H,5H,6H,7H,8H,9H-Cyclo­deca­[d][1,2,3]selena­diazole

In the title compound, which was prepared from a semicarbazone and selenium dioxide, the planes of the heterocycle and the cis double bond are almost mutually orthogonal and the hexa­methyl­ene tether is nearly strain-free.

4-Amino-3,5-di­chloro­pyridine

The crystal structure of 4-amino-3,5-di­chloro­pyridine was determined by single-crystal X-ray diffraction technique and its mol­ecular inter­actions were investigated.

3,5,6-Tri­chloro­pyridin-2-ol

The title compound is almost planar. In the crystal, the mol­ecules form centrosymmetric hydrogen-bonded dimers through pairwise O—H⋯N inter­actions to generate R²₂(8) loops.

4′-(2-Meth­oxy­phen­yl)-2,2′:6′,2′′-terpyridine

In the title compound, the dihedral angles between the central pyridine ring and the peripheral rings are 22.24 (4) and 2.38 (4)°. In the crystal, pairwise C—H⋯N hydrogen bonds form inversion dimers described by an R²₂(6) graph set descriptor, which further inter­act through C—H⋯π and π–π inter­actions, creating a two-dimensional supra­molecular network propagating in the bc plane.

3-(2-Hy­droxy­eth­yl)-1-(4-nitro­phen­yl)-1H-imidazol-3-ium bromide

The crystal structure of an imidazolium bromide salt is described.