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Figure 1
The asymmetric unit of K2[Hg(SO3)2]·2.25H2O, showing the atom labelling and with displacement ellipsoids drawn at the 74% probability level. The additional O atoms augmenting the coordination sphere of the HgII atoms are also shown. K—O bonds and O⋯O interactions have been omitted for clarity. [Symmetry codes: (i) −x + ![]() ![]() ![]() ![]() |