Crystal structure of bis[bis(4-azaniumylphenyl) sulfone] tetranitrate monohydrate

Abstract

In the title compound, the hydrated tetra(nitrate) salt of dapsone (4,4′-diaminodiphenylsulfone), 2C 12 H 14 N 2 O 2 S 2+ ·4NO 3 - ·H 2 O {alternative name: bis[bis(4,4′-diazaniumylphenyl) sulfone] tetranitrate monohydrate}, the cations are conformationally similar, with comparable dihedral angles between the two benzene rings in each of 70.03(18) and 69.69(19)°. In the crystal, mixed cation-anion-water molecule layers lying parallel to the (001) plane are formed through N - H⋯O, O - H⋯O and C - H⋯O hydrogen-bonding interactions and these layers are further extended into an overall three-dimensional supramolecular network structure. Inter-ring π-π interactions are also present [minimum ring centroid separation = 3.693(3)Å].