Acta Cryst. (2006). E62, o610-o613  [ doi:10.1107/S1600536806000973 ]

Mixed 3,5-dinitrosalicylate(2-) and partial 3,5-dinitrosalicylate(1-) and picrate(1-) species in tris(piperidinium) bis(3,5-dinitrosalicylate) picrate monohydrate

G. Smith, U. D. Wermuth and P. C. Healy

Abstract: The crystal structure of the monohydrated proton-transfer compound of 3,5-dinitrosalicylic acid with piperidine shows the presence of dianionic 3,5-dinitrosalicylate species, as well as partial monoanionic 3,5-dinitrosalicylate and picrate species; the formula is 3C₅H₁₂N⁺·C₇H₃N₂O₇^-·0.79C₇H₂N₂O₇^2-·0.21C₆H₂N₃O₇^-·H₂O. All available proton-donor species, including the solvent water molecule, are involved in hydrogen-bonding interactions with O-atom acceptors on the anion species, giving a one-dimensional column polymer structure, with further structure extension through anion-anion - ring interactions.

Online 18 January 2006

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