Synthesis and crystal structure of poly[[di-μ(3)-tetra-thio-anti-monato-tris-[(cyclam)cobalt(II)]] aceto-nitrile disolvate dihydrate] (cyclam = 1,4,8,11-tetra-aza-cyclo-tetra-deca-ne).

Reaction of Co(ClO(4))(2)·6H(2)O with cyclam (cyclam = 1,4,8,11-tetra-aza-cyclo-tetra-deca-ne) and Na(3)SbS(4)·9H(2)O (Schlippesches salt) in a mixture of aceto-nitrile and water leads to the formation of crystals of the title compound with the composition {[Co(3)(SbS(4))(2)(C(10)H(24)N(4))(3)]·2CH(3)CN·2H(2)O} (n) or {[(Co-cyclam)(3)(SbS(4))(2)]·2(aceto-nitrile)·2H(2)O} (n) . The crystal structure of the title compound consists of three crystallographically independent [Co-cyclam](2+) cations, which are located on centers of inversion, one [SbS(4)](3-) anion, one water and one aceto-nitrile mol-ecule that occupy general positions. The aceto-nitrile mol-ecule is disordered over two orientations and was refined using a split model. The Co(II) cations are coordinated by four N atoms of the cyclam ligand and two trans-S atoms of the tetra-thio-anti-monate anion within slightly distorted octa-hedra. The unique [SbS(4)](3-) anion is coordinated to all three crystallographically independent Co(II) cations and this unit, with its symmetry-related counterparts, forms rings composed of six Co-cyclam cations and six tetra-thio-anti-monate anions that are further condensed into layers. These layers are perfectly stacked onto each other so that channels are formed in which acetontrile solvate mol-ecules that are hydrogen bonded to the anions are embedded. The water solvate mol-ecules are located between the layers and are connected to the cyclam ligands and the [SbS(4)](3-) anions via inter-molecular N-H⋯O and O-H⋯S hydrogen bonding.