Abstract
The title salt, [Mn(C2H6OS)(6)]I-4, is made up from discrete [Mn(DMSO)(6)](2+) (DMSO is dimethyl sulfoxide) units connected through non-classical hydrogen bonds to linear I-4(2-) tetraiodide anions. The Mn-II ion in the cation, situated on a position with site symmetry (3) over bar, is octahedrally coordinated by O atoms of the DMSO molecule with an Mn-O distance of 2.1808 (12) angstrom. The I-4(2-) anion contains a neutral I-2 molecule weakly coordinated by two iodide ions, forming a linear centrosymmetric tetraiodide anion. The title compound is isotypic with the Co, Ni, Cu, and Zn analogues.