Crystal structure of a one-dimensional coordination polymer of tin(IV) bromide with 1,4-dithiane

The title compound, [SnBr 4 (C 4 H 8 S 2 )] {systematic name: catena -poly[[tetrabromidotin(IV)]-μ-1,4-dithiane-κ 2 S : S ′]}, represents the first 1,4-dithiane complex with tin as coordination centre. The asymmetric unit consist of half a formula unit with the tin(IV) atom at the centre of symmetry at 0,0,1/2 (Wyckoff symbol b ) and a centrosymmetric 1,4-dithiane molecule with the centre of symmetry in 1/2,0,1 (Wyckoff symbol c ). The tin(IV) atom is coordinated in a distorted octahedral manner by the four bromine atoms and two sulfur atoms of two 1,4-dithiane molecules in a trans -position. Sn—Br [mean value: 2.561 (5) Å] and Sn—S distances [2.6546 (6) Å] are in the typical range for octahedrally coordinated tin(IV) atoms and the dithiane molecule adopts a chair conformation. The one-dimensional polymeric chains propagate along the [101] direction with weak intermolecular Br...Br [3.5724 (4) Å] between parallel chains and weak Br...H interactions [2.944–2.993 Å] within the chains.