Bis(mu-8-hydroxy-7-iodoquinoline-5-sulphonato-k3N,O:O')bis[triaqua-zinc(II)]tetrahydrate

Studies on hydrogen-bonding sites/modes and metal binding mode of oxine derivatives.In the title compound, [Zn2(C9H4INO4S)2(H2O)6]·4H2O, the coordination geometry around the ZnII atom is a distorted octahedron, formed by three water molecules, the N and deprotonated O atoms of the quinolinol ring and one of the O atoms of the sulfonate group. There is a -stacking interaction between the quinolinol rings. The water molecules of crystallization play an important role in the hydrogen-bonding patterns of the three-dimensional network.