1,3-Benzothia-zolium tetra-chlorido-aurate(III) tetra-hydro-furan solvate

Abstract

In the crystal structure of the title ionic compound (C7H 6NS)[AuCl4]·C4H8O, the [AuCl4]- anion shows a typical square-planar geometry. Numerous weak C - H⋯Cl hydrogen bonds between [AuCl4] - and the 1,3-benzothia-zolium units form layers comprised of 24-membered rings in which hydrogen-bonded tetra-hydro-furan (THF) solvent mol-ecules are accommodated. C - H⋯Cl inter-actions between THF and [AuCl4]- from adjacent layers result in bilayers. These are further stabilized by π-π inter-actions between the thia-zole and benzene rings [centroid-centroid distance = 3.971 (3) Å], resulting in the formation of a three-dimensional supra-molecular assembly.