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

• Published in: Acta crystallographica. Section E, Crystallographic communications Vol. 79; no. 8; pp. 726 - 729
• Main Authors: Kubono, Koji, Tanaka, Ryoichi, Kashiwagi, Yukiyasu, Tani, Keita, Yokoi, Kunihiko
• Format: Journal Article
• Language: English
• Published: 01.08.2023
• ISSN: 2056-9890; 2056-9890
• DOI: 10.1107/S2056989023005959

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.