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2,3-Dimethoxy-10-oxystrychnidinium 2-carboxy-4,5-dichlorobenzoate

Smith, Graham, Wermuth, Urs D., & White, Jonathan M. (2007) 2,3-Dimethoxy-10-oxystrychnidinium 2-carboxy-4,5-dichlorobenzoate. Acta Crystallographica E : Structure Reports Online, E63(11), o4276-o4277.

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Abstract

The structure of the title compound, C23H27N2O4+ . C8H3Cl2O4-, a 1:1 proton-transfer compound of brucine with 4,5-dichlorophthalic acid, has been determined at 130 K. The brucinium cations and the hydrogen phthalate anions associate through single N-H...O(carboxylate) hydrogen bonds [2.639(3) Ang.], giving dimers which are extended via weak head-to-tail C-H...O(methoxy) associations into chains forming down the 21 screw axis of the unit cell. The carboxyl proton of the anion gives a short intramolecular O-H...O(carboxyl) hydrogen bond [2.441(3) Ang.].

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43 since deposited on 16 Oct 2007
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ID Code: 10112
Item Type: Journal Article
Keywords: brucine, crystal structure, proton transfer compound
DOI: 10.1107/S1600536807047952
ISSN: 1600-5368
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2007 International Union of Crystallography
Copyright Statement: The definitive version is available at www.blackwell-synergy.com
Deposited On: 16 Oct 2007
Last Modified: 29 Feb 2012 23:38

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