Anhydrous quinolinium dihydrogen citrate
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Wermuth, Urs D
White, Jonathan M
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Abstract
In the title compound, C9H8N+烶H7O7-, the dihydrogen citrate anions form a convoluted two-dimensional hydrogen-bonded substructure through head-to-tail interactions with the interstitial p-stacked quinolinium cations linked to it peripherally through cyclic R12(5) N+-H...O(carboxyl/hydroxyl) hydrogen-bond interactions. The loss of a proton from one of the ߭carboxylic acid groups of the citric acid generates a chiral centre in the anion, but these form a racemate in the centrosymmetric crystal structure.
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Acta Crystallographica Section E, Structure Reports Online
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E63
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6
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© The Author(s) 2007. For information about this journal please refer to the journal's website. All articles published in Acta Crystallographica Section E are open access and distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. See http://creativecommons.org/licenses/by/2.0/uk/legalcode
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Chemical sciences