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
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..View full abstract
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.