title: catena-Poly[bis(1,3-benzo-thia-zol-3-ium) [[di-chlorido-anti-monate(III)]-di-μ-chlorido-μ-oxido-[chlorido-anti-monate(III)]-μ-chlorido]].
abstract: The title compound, {(C7H6NS)2[Sb2Cl6O]} n , contains two benzo-thia-zolidium cations and one tri-μ-chlorido-tri-chlorido-μ-oxido-di-anti-monate(III) anion. The structure of the inorganic cation may be described as as being built up from two polyhedra, i.e. a square-pyramidal SbCl4O and a distorted octa-hedral SbOCl5 unit, sharing a common face (comprising the O atom and two Cl atoms). The two benzo-thia-zole cations are quasi-planar and subtend a dihedral angle of 19.93 (5)°. The crystal packing can be described by alternating (100) layers and [001] chains of the organic cations and inorganic anions connected through an extensive three-dimensional network of N-H⋯Cl, C-H⋯O and C-H⋯Cl hydrogen bonds. This is consolidated by slipped π-π stacking, with centroid-to-centroid distances between the benzo-thia-zole rings of 3.7111 (18)-3.8452 (16) Å. These inter-actions link the mol-ecules within the layers and also link the layers together and reinforce the cohesion of the ionic structure.
authors.affiliation: Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, CHEMS, Université Frères Montouri Constantine, 25000, Algeria.
authors.forename: Oussama
authors.initials: O
authors.lastname: Chebout
authors.affiliation: Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, CHEMS, Université Frères Montouri Constantine, 25000, Algeria.
authors.forename: Mhamed
authors.initials: M
authors.lastname: Boudraa
authors.affiliation: Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, CHEMS, Université Frères Montouri Constantine, 25000, Algeria; Département Sciences de la Matière, Faculté des Sciences Exactes et Sciences de la Nature et de la Vie, Université Oum El Bouaghi, Algeria.
authors.forename: Sofiane
authors.initials: S
authors.lastname: Bouacida
authors.affiliation: Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, CHEMS, Université Frères Montouri Constantine, 25000, Algeria.
authors.forename: Hocine
authors.initials: H
authors.lastname: Merazig
authors.affiliation: Unité de Recherche de Chimie de l'Environnement et Moléculaire Structurale, CHEMS, Université Frères Montouri Constantine, 25000, Algeria.
authors.forename: Chaouki
authors.initials: C
authors.lastname: Boudaren
keywords: anti­mony; crystal structure; hydrogen bonding; organic–inorganic hybrid compound; π–π stacking