Crystal structure of bis(μ₂-5-nonanoylquinolin-8-olato)bis[aquadichloridoindium(III)]

Crystallization of 5-nonanoyl-8-hydroxyquinoline in the presence of InCl 3 in acetonitrile yields a dinuclear In III complex crystallizing in the space group P 1̄. In this complex, [In 2 (C 18 H 22 NO 2 ) 2 Cl 4 (H 2 O) 2 ], each indium ion is sixfold coordinated by two chloride ions, one water molecule and two 8-quinolinolate ions. The crystal of the title complex is composed of two-dimensional supramolecular aggregates, resulting from the linkage of the O water —H...O=C and O water —H...Cl hydrogen bonds as well as bifurcated C arene —H...Cl contacts.