Journal article

One-dimensional hydrogen-bonded structures in the 1 : 1 proton-transfer compounds of 4,5-dichlorophthalic acid with 8-hydroxyquinoline, 8-aminoquinoline and quinoline-2-carboxylic acid (quinaldic acid)

Graham Smith, Urs D Wermuth, Jonathan M White

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | INT UNION CRYSTALLOGRAPHY | Published : 2008

Abstract

The structures of the 1:1 proton-transfer compounds of 4,5-dichlorophthalic acid with 8-hydroxyquinoline, 8-aminoquinoline and quinoline-2-carboxylic acid (quinaldic acid), namely anhydrous 8-hydroxyquinolinium 2-carboxy-4,5-dichlorobenzoate, C(9)H(8)NO(+) x C(8)H(3)Cl(2)O(4)(-), (I), 8-aminoquinolinium 2-carboxy-4,5-dichlorobenzoate, C(9)H(9)N(2)(+) x C(8)H(3)Cl(2)O(4)(-), (II), and the adduct hydrate 2-carboxyquinolinium 2-carboxy-4,5-dichlorobenzoate quinolinium-2-carboxylate monohydrate, C(10)H(8)NO(2)(+) x C(8)H(3)Cl(2)O(4)(-) x C(10)H(7)NO(2) x H(2)O, (III), have been determined at 130 K. Compounds (I) and (II) are isomorphous and all three compounds have one-dimensional hydrogen-bonde..

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