Figure 2
Diagram showing hydrogen-bonded [{Na(H2O)2}2(μ-H2O)2(μ-pzdo)]2+ and pzdo moieties which generate a rectangular grid parallel to the bc plane. Dashed lines represent O—H⋯O interactions between coordinating water molecules and the solvent pzdo molecule (O4—H4A⋯O3 and O5—H5B⋯O3i) and between a coordinating water and the coordinating pzdo ligand (O4—H4B⋯O2iii). [Symmetry codes: (i) −x + 1, y, −z + ; (iii) x, y − 1, z; (iv) −x + , y + , −z + .] |