Figure 3
Packing diagram of (I) with the outline of the unit cell. The alternating layers of hexaaquanickel(II) cations and 3-carboxy-4-hydroxybenzenesulfonate anions are evident. O—H⋯O hydrogen bonds are shown as striped cylinders. H atoms bonded to C atoms have been omitted. Displacement ellipsoids are drawn at the 90% probability level. |