A. S. Dayananda, J. Jasinski, J. Golen
Aug 27, 2011
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
In the tripodinium cation of the title compound {systematic name: 2-[(E)-1-(4-methylphenyl)-3-(pyrrolidin-1-ium-1-yl)prop-1-enyl]pyridinium bis(2,4,6-trinitrophenolate)}, C19H24N2 +·2C6H2N3O7 −, the N atoms on both the pyrrolidine and pyridinium groups are protonated. The pyrrolidine group adopts a slightly distorted envelope configuration. Strong N—H⋯O cation–anion hydrogen bonds and weak intermolecular N—H⋯O interactions link the dication and two anions. In both picrate anions, the nitro groups display rotational disorder over two orientations in a 0.605 (6):0.395 (6) ratio. The crystal packing also features weak intermolecular π–π [centroid–centroid distance = 3.8036 (14) Å] and C—H⋯O interactions.