Sodium 1,12-Dodecylene Disulfate Hydrate

There are two independent dodecylene disulfate molecules in the crystal of 2Na⁺.C₁₂H₂₄O₈S₂^2-.0.66H₂O, one with a centrosymmetric conformation, its center lying on a crystallographic center of symmetry, the second with an asymmetric conformation, which is also partially disordered. The molecules form a layer structure parallel to the ab plane, the polar parts of neighbouring molecular layers connecting via coordination to the Na⁺ ion. Additionally, there are hydrogen bonds between the water molecule and two sulfate groups.

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