Synthesis and crystal structure of catena-poly[[bis-[(2,2′;6′,2"-terpyridine)manganese(II)]-μ4-penta-thiodiantimonato] tetrahydrate] showing a 1D MnSbS network

The asymmetric unit of the title compound, {[Mn2Sb2S5(C15H11N3)(2)]center dot 4H2O}(n), consists of two crystallographically independent Mn-II ions, two unique terpyridine ligands, one [Sb2S5](4-) anion and four solvent water molecules, all of which are located in general positions. The [Sb2S5](4-) anion consists of two SbS3 units that share common corners. Each of the Mn-II ions is fivefold coordinated by two symmetry-related S atoms of [Sb2S5](4-) anions and three N atoms of a terpyridine ligand within an irregular coordination. Each two anions are linked by two [Mn(terpyridine)](2+) cations into chains along the c-axis direction that consist of eight-membered Mn2Sb2S4 rings. These chains are further connected into a three-dimensional network by intermolecular O-H center dot center dot center dot O and O-H center dot center dot center dot S hydrogen bonds. The crystal investigated was twinned and therefore, a twin refinement using data in HKLF-5 [Sheldrick (2015). Acta Cryst. C71, 3-8] format was performed.