| Summary: | Cocrystallization of 4-amino-3,5-bis(2-pyridyl)-1,2,4-triazole (2-bpt) with hemimellitic acid (benzene-1,2,3-tricarboxylic acid) dihydrate (H3HMA·2H2O) produces the supramolecular title compound, C12H10N6·C9H6O6·2H2O. Intermolecular N—H...N hydrogen bonds are observed between the terminal pyridyl and amino groups of the 2-bpt molecule and the dihedral angles between the central ring and the pendant pyridine rings are 3.4 (7) and 13.8 (7)°. In the structure, homosynthons of graph set R22(8) are observed to form centrosymmetric H3HMA dimers, which are extended into a two-dimensional supramolecular layer via intermolecular O—H...N and C—H...O hydrogen bonds and π–π stacking interactions [centroid–centroid distance = 3.541 (3) Å]. In addition, interlayer uncoordinated water molecules connect the layers through O—H...O hydrogen bonds, generating a three-dimensional network.
|
|---|
