catena-Poly[[[bis-(thio-urea-κS)cadmium]-di-µ-thio-cyanato-κ(2)N:S;κ(2)S:N] dihydrate].

The title compound, {[Cd(NCS)(2)(CH(4)N(2)S)(2)]·2H(2)O}(n), forms a one-dimensional chain parallel to the a axis, caused by the presence of the bridging thio-cyanate groups. Two solvent mol-ecules per complex are present in the lattice. The Cd(II) ion is situated on an inversion centre and is coordinated in a distorted octa-hedral fashion by two N and two S atoms from four thio-cyanate ligands and by two S atoms from two thio-urea mol-ecules. Weak O-H⋯S, N-H⋯O and N-H⋯N inter-actions reinforce the structure.

1,3-Dibenzyl-imidazolidine-2-thione.

In the title compound, C(17)H(18)N(2)S, the imidazolidine ring adopts a twisted conformation. In the crystal, mol-ecules are linked by slipped π-π inter-actions between the benzene rings of neighbouring mol-ecules [centroid-to-centroid distance = 3.903 (2) Å].

N-(4-Methyl-piperazin-4-ium-1-yl)dithio-carbamate sesquihydrate.

In the crystal structure of the title compound, C(6)H(13)N(3)S(2)·1.5H(2)O, weak N-H⋯S inter-actions between the zwitterionic mol-ecules are observed, leading to an extensively folded layered arrangement parallel to (100). There are three crystallographically independent water mol-ecules in the asymmetric unit, which are disordered and only half occupied.

Redetermination of bis-(O,O'-diethyl dithio-phosphato-κS,S')nickel(II).

The centrosymmetric title complex, [Ni{S(2)P(OC(2)H(5))(2)}(2)], has been redetermined using area-detector data. The central Ni(S(2)P)(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 Šis observed in the crystal structure.