Synthesis and crystal structure of catena-poly[[bis[(2,2';6',2''-terpyridine)-manganese(II)]-μ4-penta-thio-dianti-monato] tetra-hydrate] showing a 1D MnSbS network

In the crystal structure of the title compound, two [Sb₂S₅ [anions built up of two SbS₃ units sharing common corners with each linked by two [Mn(terpyridine)]²⁺ cations into chains that are further linked into a 3D network by inter­molecular O—H⋯O and O—H⋯S hydrogen bonding.

The asymmetric unit of the title compound, {[Mn₂Sb₂S₅(C₁₅H₁₁N₃)₂]·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⋯O and O—H⋯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.