4-Chloroanilinium 2-carboxy-4,5-dichlorobenzoate
Graham Smith, Urs D. Wermuth, Jonathan M. White
Acta Crystallographica Section E · 2009
doi:10.1107/s160053680903044x (opens in a new tab)
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Abstract
The structure of the 1:1 proton-transfer compound of 4-chloroaniline with 4,5-dichlorophthalic acid (DCPA), viz. C6H7ClN+·C8H3Cl2O4−, has been determined at 130 K. The non-planar hydrogen phthalate anions and the 4-chloroanilinium cations form two-dimensional O—H...O and N—H...O hydrogen-bonded substructures which have no peripheral extension. Between the sheets there are weak π–π associations between alternating cation–anion aromatic ring systems [shortest centroid–centroid separation = 3.735 (4) Å].
Abstract licence: CC BY
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