Acta Cryst. (2004). E60, m62-m64  [ doi:10.1107/S1600536803027818 ]

A supramolecular ladder in diaqua(-8-hydroxy-7-iodoquinoline-5-sulfonato-⁴N,O,O',O'')cadmium(II) dihydrate

S. Francis, P. T. Muthiah and R. J. Butcher

Abstract: In the title complex, {[Cd(C₉H₄INO₄S)(H₂O)₂]·2H₂O}_n, the Cd²⁺ ion has a distorted octahedral geometry, surrounded by two O atoms of sulfonate groups, N and O atoms of the oxine ring (bidentate chelation) and two water molecules. Inversion-related ligands, stacked over one another, form the rungs of the ladder whereas the O-Cd-O(sulfonate) bonds form the rails of the ladder. These supramolecular ladders are further cross-linked by O-HO hydrogen bonds involving the water molecules and the sulfonate O atoms.

Online 12 December 2003

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