Catena-Poly[[chlorido-tris-(1,3-thia-zolidine-2-thione-κS)cadmium(II)]-μ-chlorido

Cheikh Abdou Khadre Diop,Nikolay Tumanov,Aboubacar Diop,Antoine Blaise Kama,Tidiane Diop

doi:10.1107/s2414314620014236

Cheikh Abdou Khadre Diop, Nikolay Tumanov + Show 3 more

Open Access

https://doi.org/10.1107/s2414314620014236

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Abstract

The synthesis and characterization of poly[di-chlorido-tri(1,3-thia-zolidine-2-thione)cadmium(II)], [CdCl2(C3H5NS2)3] n , prepared from CdCl2·H2O and C3H5NS2 (tzdSH) in a 1:3 ratio, are described. The CdII cation is coordinated by three 1,3-thia-zolidine-2-thione mol-ecules and three Cl- anions in a distorted octa-hedral environment. The Cd metal centres are connected via Cl- ligands, creating polymeric chains running along the a-axis direction. The conformation of the chains is stabilized by N-H⋯Cl hydrogen bonds.

Highlights

The synthesis and characterization of poly[dichloridotri(1,3-thiazolidine-2thione)cadmium(II)], [CdCl2(C3H5NS2)3]n, prepared from CdCl2ÁH2O and C3H5NS2 in a 1:3 ratio, are described
The Cd metal centres are connected via ClÀ ligands, creating polymeric chains running along the a-axis direction
The conformation of the chains is stabilized by N—HÁ Á ÁCl hydrogen bonds

Summary

Structure description

1,3-Thiazolidine-2-thione (tzdSH: C3H5NS2), is a well-known heterocyclic thione/thiol ligand. Crystallographic studies and investigations of its modes of coordination have been reported (Saithong et al, 2007). We are interested in the coordination behaviour and structure of tzdSH complexes with CdII chloride. The synthesis is accompanied by a transformation of the tzdSH (tzdSH: C3H5NS2, thiol form) into a tzdt ligand (tzdt: C3H5NS2, thion form). Cadmium (II) is known to form a wide variety of 1:1 to 1:4 complexes with thiones, where the structural arrangements are generally tetrahedral and octahedral coordination environments (Mahmood et al, 2018). The 1:2 complexes such as [Cd(Dmtu)2X2] (Dmtu = N,N0-dimethylthiourea-S; X = Cl, Br, I; Ahmad et al, 2011) are the most common and often consist of discrete monomeric molecules with a terahedrally (Moloto et al, 2003) or octahedrally (Mahmood et al, 2012) coordinated CdII ion.

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Synthesis and crystallization

Data collection

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