Abstract
In the title compound (systematic name: 2,3-dimethoxy-10-oxostrychnidinium 2-carboxy-6-nitrophthalate dihydrate), C23H27N 2O4 +·C8H4NO 6-·2H2O, the carboxylic acid and carboxylate groups of the hydrogenphthalate anions form head-to-tail catemeric chains of strong intermolecular O-H⋯O hydrogen bonds [O⋯O distance = 2.563 (5) Å] along the 21 screw axes parallel to the a axis. The chains further associate with the water molecules, forming sheet structures parallel to (010). The protonated N atom at the 19-position of the brucine molecule forms a peripheral intermolecular hydrogen bond with the carboxylate group of the anion.
| Original language | English |
|---|---|
| Pages (from-to) | o2008-o2011 |
| Number of pages | 4 |
| Journal | Acta Crystallographica Section E: Structure Reports Online |
| Volume | E61 |
| Issue number | Part 7 |
| DOIs | |
| Publication status | Published - 1 Jul 2005 |
| Externally published | Yes |
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Smith, G., Wermuth, U. D., Young, D. J., & Healy, P. C. (2005). Brucinium 2-carboxy-6-nitrophthalate dihydrate: The 1:1 proton-transfer compound of brucine with 3-nitrophthalic acid. Acta Crystallographica Section E: Structure Reports Online, E61(Part 7), o2008-o2011. https://doi.org/10.1107/S1600536805017149