Brucinium 2-carboxy-6-nitrophthalate dihydrate: The 1:1 proton-transfer compound of brucine with 3-nitrophthalic acid

Graham Smith, Urs D. Wermuth, David J. Young, Peter C. Healy

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)o2008-o2011
Number of pages4
JournalActa Crystallographica Section E: Structure Reports Online
VolumeE61
Issue numberPart 7
DOIs
Publication statusPublished - 1 Jul 2005
Externally publishedYes

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