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Acta Cryst. (2007). E63, m2262  [ doi:10.1107/S1600536807036938 ]

Hexaaquazinc(II) 3-ammonionaphthalene-1,5-disulfonate tetrahydrate

D. J. Genther, P. J. Squattrito, K. Kirschbaum and A. A. Pinkerton

Abstract: The title compound, [Zn(H2O)6][H3NC10H5(SO3)2]2·4H2O (Zn site symmetry \overline{1}), is isostructural with its nickel(II) and cobalt(II) analogues. An extensive network of N-H...O and O-H...O hydrogen bonds involving the ammonio group, water molecules, and sulfonate O atoms helps to establish the packing. One of the uncoordinated water molecules is disordered over at least two sites (modelled over two positions with site occupancy ratio ca 2:1).

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