Crystal structure of catena-poly[N,N,N',N'-tetra-methyl-guanidinium [(chlorido-cadmate)-di-μ-chlorido]

Mamadou Ndiaye,Libasse Diop,Abdoulaye Samb,Thierry Maris

doi:10.1107/s2056989015020836

Abstract

In the structure of the title salt, {(C5H14N3)[CdCl3]} n , the Cd(II) atom of the complex anion is five-coordinated by one terminal and four bridging Cl atoms. The corresponding coordination polyhedron is a distorted trigonal bipyramid, with Cd-Cl distances in the range 2.4829 (4)-2.6402 (4) Å. The bipyramids are condensed into a polyanionic zigzag chain extending parallel to [101]. The tetra-methyl-guanidinium cations are situated between the polyanionic chains and are linked to them through N-H⋯Cl hydrogen bonds, forming a layered network parallel to (010).

Highlights

In the structure of the title salt, {(C5H14N3)[CdCl3]}n, the CdII atom of the complex anion is five-coordinated by one terminal and four bridging Cl atoms
The tetramethylguanidinium cations are situated between the polyanionic chains and are linked to them through N—HÁ Á ÁCl hydrogen bonds, forming a layered network parallel to (010)
The coordination polyhedron around CdII can be described best as a distorted trigonal bipyramid where atoms Cl1, Cl2 and Cl4 define the equatorial plane while atoms

Summary

DÁ Á ÁA

The CdCl4 moieties of the asymmetric unit are related by an inversion center, generating an extended zigzag chain of edge-sharing trigonal bipyramids running parallel to [101]. These 11[CdCl4/2Cl1/1]À chains are formed by the bridging atoms Cl2, Cl3, Cl4 and Cl4i with a Cd—Cd—Cd angle of 137.893 (6). 3. Supramolecular features The 11[CdCl4/2Cl1/1]À chains are interconnected through N— HÁ Á ÁÁCl hydrogen bonds by pairs of tetramethylguanidinium cations linked to symmetry-related Cl1 atoms (Table 1). Supramolecular features The 11[CdCl4/2Cl1/1]À chains are interconnected through N— HÁ Á ÁÁCl hydrogen bonds by pairs of tetramethylguanidinium cations linked to symmetry-related Cl1 atoms (Table 1) These interactions define layers extending parallel to (010) (Fig. 2).

Data collection Diffractometer Absorption correction

Bruker Venture Metaljet diffractometer

Special details