organic compounds
Open access
In the title compound, C19H13N5·C4H8O2·2H2O, the molecular skeleton of the 2,6-bis(benzimidazol-2-yl)pyridine (bbip) molecule is essentially planar (r.m.s. deviation = 0.023 Å). An extensive three-dimensional network of intermolecular N—HO, O—HO and O—HN hydrogen bonds consolidates the crystal packing, which also exhibits π–π interactions between the five- and six-membered rings from neighbouring bbip molecules.
organic compounds
Open access
In the title compound, C14H11N3OS·C2H5OH, the dihedral angle between the pyridine N—Cfused—Cfused—C(thiophene) plane and the plane of the thiophene ring is 81.9 (3)°, indicating that they are close to perpendicular. The dihedral angle between this pyridine plane and the benzene ring is 1.3 (3)°. The thiophene ring is disordered over two coplanar orientations with an occupancy ratio of 0.692 (7):0.308 (7), while the ethanol solvent molecule is also disordered over two sets of site in a 0.66 (4):0.34 (4) ratio. In the crystal, chains are formed along the b axis by N—HO and O—HN interactions with adjacent chains being connected through C—HN and C—HS interactions.
organic compounds
Open access
The asymmetric unit of the title hydrated co-crystal, 2C19H13N5·C6H10O4·4H2O, consists of one 2,6-bis(1H-benzimidazol-2-yl)pyridine molecule, half of an adipic acid molecule (bisected by an inversion center) and two water solvates. In the crystal, N—HO, O—HO and O—HN hydrogen bonds and π–π interactions [centroid–centroid distances = 3.769 (2) and 3.731 (2) Å] form a three-dimensional supramolecular structure.