Acta Cryst. (2006). E62, o1402-o1404  [ doi:10.1107/S1600536806008749 ]

Bis(1,2,3,5-tetramethyl-4-nitropyrazolium) dihydronium tris(4-methyl-3,5-dinitrobenzenesulfonate) forms C(8) chains through O-HO bonding via the dihydronium cation

J. M. S. Skakle and J. L. Wardell

Abstract: In the title salt, 2C₇H₁₂N₃O₂⁺·H₅O₂⁺·3C₇H₅N₂O₇S^-, strong hydrogen bonding from the donor (H₅O₂⁺) group links to 4-methyl-3,5-dinitrobenzenesulfonate anions. The dihydronium (H₅O₂⁺) cation could be considered intermediate between clearly distinct (H₃O)⁺ and H₂O entities and an `(H₅O₂)⁺' entity, although it tends to be closer to the former; the OO distance is 2.434 (3) Å. Strong hydrogen bonding leads to the formation of chains along the [010] direction.

Online 15 March 2006

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