Crystal data

R factor = 0.051; wR factor = 0.205; data-to-parameter ratio = 12.7. In the title compound, C9H11NO0.5H2O, the asymmetric unit contains two similar molecules of 5,6,7,8-tetrahydroquinoline 1-oxide and one water molecule. The water molecule links the two O atoms of both independent N-oxides into dimers via O—H O hydrogen bonds, forming a three-dimensional network along [101], which is additionally stabilized by weak C—H O intermolecular interactions. In each molecule, the saturated six-membered rings exist in a conformation inter-mediate between a half-chair and sofa. Related literature For background to the chemistry of the title compound and it