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. 2011 Sep 1;67(Pt 9):o2502.
doi: 10.1107/S160053681103457X. Epub 2011 Aug 27.

Triprolidinium dipicrate

A S Dayananda, Jerry P Jasinski, James A Golen, H S Yathirajan, C R Raju

Triprolidinium dipicrate

A S Dayananda et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the tripodinium cation of the title compound {systematic name: 2-[(E)-1-(4-methyl-phen-yl)-3-(pyrrolidin-1-ium-1-yl)prop-1-en-yl]pyridinium bis-(2,4,6-trinitro-phenolate)}, C(19)H(24)N(2) (+)·2C(6)H(2)N(3)O(7) (-), 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 inter-molecular N-H⋯O inter-actions 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 inter-molecular π-π [centroid-centroid distance = 3.8036 (14) Å] and C-H⋯O inter-actions.

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Figures

Fig. 1.
Fig. 1.
Molecular structure of the title compound, showing the atom-labeling scheme and 30% probability displacement ellipsoids.
Fig. 2.
Fig. 2.
Packing diagram of the title compound, viewed down the b axis. Dashed lined indicate N—H···O hydrogen bonds.
See this image and copyright information in PMC

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