Acta Cryst. (2013). C69, 1545-1548 [ doi:10.1107/S0108270113031521 ]
Synopsis: 2,2'-Disulfanylidene-5,5'-biimidazolidinylidene molecules aggregate through N-HS hydrogen-bonding interactions with cyclic motifs [graph set (8)], giving two-dimensional ribbon structures which are close to being parallel. Two independent water molecules associate to form centrosymmetric cyclic hydrogen-bonded (H2O)4 tetramer units [graph set (8)].
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