3-Carboxyquinolin-1-ium-2-carboxylate monohydrate

3-Carboxyquinolin-1-ium-2-carboxylate monohydrate

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The title compound, C11H7NO4·H2O, bostik roll-cote contains a 3-carboxyquinolin-1-ium-2-carboxylate (qda) zwitterion and one water molecule.In the crystal, pairs of N—H.O hydrogen bonds link the molecules into inversion dimers, and these dimers are further connected by O—H.O hydrogen bonds into a three-dimensional supramolecular architecture.In addition, π–π interactions occur between pyridine and g5210t-p90 benzene rings from different qda ligands [centroid–centroid distance = 3.

749 (1) Å] and the dihedral angles of the –CO2H and –CO2 groups to the quinoline system are 8.47 (3) and 88.16 (6)°, respectively.