Anna Mietlarek-Kropidłowska

catena-Poly[[[bis­(thio­urea-κS)cadmium]-di-μ-thio­cyanato-κ2N:S;κ2S:N] dihydrate]

The title compound, {[Cd(NCS)2(CH4N2S)2]·2H2O}n, forms a one-dimensional chain parallel to the a axis, caused by the presence of the bridging thiocyanate groups. Two solvent molecules per complex are present in the lattice. The CdII ion is situated on an inversion centre and is coordinated in a distorted octahedral fashion by two N and two S atoms from four thiocyanate ligands and by two S atoms from two thiourea molecules. Weak O—H⋯S, N—H⋯O and N—H⋯N interactions reinforce the structure.

N-(4-Methyl­piperazin-4-ium-1-yl)dithio­carbamate sesquihydrate

In the crystal structure of the title compound, C6H13N3S2·1.5H2O, weak N—H⋯S interactions between the zwitterionic molecules are observed, leading to an extensively folded layered arrangement parallel to (100). There are three crystallographically independent water molecules in the asymmetric unit, which are disordered and only half occupied.

Redetermination of bis­(O,O′-diethyl dithio­phosphato-κ2S,S′)nickel(II)

The centrosymmetric title complex, [Ni{S2P(OC2H5)2}2], has been redetermined using area-detector data. The central Ni(S2P)2 core is essentially planar and confirms the early results of McConnell & Kastalsky [Acta Cryst. (1967), 22, 853–859] based on multiple film technique data. In the title structure, the standard uncertainty values are approximately seven times lower and all H-atom positions are calculated. A pair of short symmetry-related H⋯H contacts with distances of 2.33 Å is observed in the crystal structure.

1,3-Dibenzyl­imidazolidine-2-thione

In the title compound, C17H18N2S, the imidazolidine ring adopts a twisted conformation. In the crystal, molecules are linked by slipped π–π interactions between the benzene rings of neighbouring molecules [centroid-to-centroid distance = 3.903 (2) Å].