Crystal structure of poly[(aceto­nitrile-κN)(μ(3)-7-{[bis­(pyridin-2-ylmeth­yl)amino]­meth­yl}-8-hy­droxy­quinoline-5-sulfonato-κ(4) N,O:O′:O′′)sodium]

In the title compound, [Na(C(22)H(19)N(4)O(4)S)(CH(3)CN)]( n ), the Na(I) atom adopts a distorted square-pyramidal coordination geometry, formed by one N and one O atom of the qunolinol moiety in the ligand, two O atoms of sulfonate moieties of two adjacent ligands and the N atom of the coordinated aceto­nitrile solvent. The Na(I) atom is located well above the mean basal plane of the square-based pyramid. The apical position is occupied by a sulfonate O atom of a neighboring ligand. Three N atoms of the bis­(pyridin-2-ylmeth­yl)amine moiety in the ligand are not coordinated by the sodium atom. The mol­ecule forms an intra­molecular bifurcated O—H⋯[N(tertiary amine),N(pyridine)] hydrogen bond, generating S(6) and S(5) rings. In the crystal, four mol­ecules are linked by four Na—O(sulfonato) bridged coordination bonds, forming a supra­molecular centrosymmetric tetra­mer unit comprising an eight-membered ring, and generating a two-dimensional network sheet. The mol­ecules of different sheets form inter­molecular C—H⋯O hydrogen bonds, and thereby a three-dimensional network structure.