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Figure 1 . ORTEP drawings of cation E (C20H27N2+) and anion A (C4H3O4−) in the asymmetric unit of (I) showing the atom numbering scheme and 50% probability displacement ellipsoids of non-H atoms. Dashed lines indicate N2E—H2EB⋯O2A intermolecular and O3A—H3A⋯O1A intramolecular hydrogen bond interactions. |
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