C. Kavitha, M. Kaur, J. Jasinski
May 24, 2014
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
In the cation of the title salt, C9H13N2O2 +·C7H3N2O6 −, the piperazine ring adopts a slightly distorted chair conformation. Twofold rotational disorder is exhibited by the furan ring in a 0.430 (4):0.570 (4) ratio. In the crystal, N—H⋯O hydrogen bonds link the ions into chains along [010]. Additional weak C—H⋯O interactions are observed, leading to a supramolecular layer parallel to (011).