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

Smith, Graham, Wermuth, Urs D., Young, David J., & Healy, Peter 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, 61(7), o2008 -o2011.

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In the title compound (systematic name: 2,3-dimethoxy-10-oxostrychnidinium 2-carboxy-6-nitrophthalate dihydrate), C23H27N2O4+·C8H4NO6-·2H2O, the carboxylic acid and carboxylate groups of the hydrogenphthalate anions form head-to-tail catemeric chains of strong intermolecular O-HO hydrogen bonds [OO 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.

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14 citations in Web of Science®
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ID Code: 13139
Item Type: Journal Article
Refereed: Yes
DOI: 10.1107/S1600536805017149
ISSN: 1600-5368
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2005 International Union of Crystallography (IUCr)
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 25 Mar 2008 00:00
Last Modified: 29 Feb 2012 13:16

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