6-Amino-9H-purine-1,7-diium bis(4-methylbenzenesulfonate) monohydrate

Abstract

The asymmetric unit of the title compound, C5H7N52+·2C7H7O3S−·H2O, consists of one diprotonated adeninium cation, two p-toluenesulfonic acid anions and one water molecule. In the crystal, the cations and anions are connected through N—H...O hydrogen bonds forming R22(8) and R22(9) graph-set motifs. The solvent water molecule links cations and anions through O—H...O and N—H...O hydrogen bonds, generating a two-dimensional layer parallel to (10overline{1}).