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In the crystal structure of the title compound, rac-7-oxabicyclo[2.2.1]heptane-2,3-dicarboxylic acid–2-aminobenzothiazole (1/1), C8H10O5·C7H6N2S, molecules of each component are linked into centrosymmetric dimers by intermolecular N—H...O hydrogen bonds. These dimers are connected by O—H...O hydrogen bonds into a chain along the b axis. In addition, π–π interactions between aromatic heterocycles occur [centroid–centroid distance of 3.4709 Å and interplanar spacing of 3.4374 Å between symmetry-related benzothiazole ring systems.