Journal article

Two- and three-dimensional hydrogen-bonded structures in the 1 : 1 proton-transfer compounds of 4,5-dichlorophthalic acid with the isomeric monoaminobenzoic acids

Graham Smith, Urs D Wermuth, Jonathan M White

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | WILEY-BLACKWELL | Published : 2008

Abstract

The crystal structures of the 1:1 proton-transfer compounds of 4,5-dichlorophthalic acid with the three isomeric monoaminobenzoic acids, namely the hydrate 2-carboxyanilinium 2-carboxy-4,5-dichlorobenzoate dihydrate, C(7)H(8)NO(2)(+).C(8)H(3)Cl(2)O(4)(-).2H(2)O, (I), and the anhydrous salts 3-carboxyanilinium 2-carboxy-4,5-dichlorobenzoate, C(7)H(8)NO(2)(+).C(8)H(3)Cl(2)O(4)(-), (II), and 4-carboxyanilinium 2-carboxy-4,5-dichlorobenzoate, C(7)H(8)NO(2)(+).C(8)H(3)Cl(2)O(4)(-), (III), have been determined at 130 K. Compound (I) has a two-dimensional hydrogen-bonded sheet structure, while (II) and (III) are three-dimensional. All three compounds feature sheet substructures formed through anili..

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University of Melbourne Researchers

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Funding Acknowledgements

The authors acknowledge financial support from the School of Physical and Chemical Sciences, Queensland University of Technology, the School of Biomolecular and Physical Sciences, Griffith University, and the School of Chemistry, University of Melbourne.