Acta Cryst. (2012). E68, m1358
[ doi:10.1107/S1600536812042080 ]
Abstract: In the title compound, K+·C6H4BrN2O4S-·H2O, the K+ ion is hepta-coordinated by two O atoms from two different water molecules, three sulfonyl O atoms from three N-bromo-2-nitro-benzenesulfonamidate anions and two nitro O atoms from two N-bromo-2-nitro-benzenesulfonamidate anions. The S-N distance of 1.576 (4) Å is consistent with an S=N double bond. The crystal structure is stabilized by intermolecular O-HN and O-HBr hydrogen bonds which link the molecules into polymeric layers running parallel to the bc plane.
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