Hydrogen-bonded supramolecular motifs in aqua(8-hydroxyquinline-5-sulfonato-k2N,O)potassium(I)

Studies on hydrogen-bonding. In the title compound, [K(C9H6NO4S)(H2O)], (I), the K+ ion, surrounded by the N and O atoms of the quinolinol moiety (bidentate chelation), three O atoms from the sulfonate groups and a water molecule, has a distorted octahedral geometry. The multiple coordination mode of the sulfonate group, the bidentate chelation of the oxine moiety and the hydrogen-bonded network lead to a supramolecular architecture in the crystal structure of (I).