Crystal structure of 7,7'-[(pyridin-2-yl)methylene]- bis(5-chloroquinolin-8-ol).

In the title compound, C24H15Cl2N3O2, one quinoline ring system is essentially planar and the other is slightly bent. An intramolecular O—HN hydrogen bond involving the hydroxy group and a pyridine N atom forms an S(5) ring motif. In the crystal, two molecules are associated into an inversion dimer with two R2 ² (7) ring motifs through intermolecular O—H. . . N and O—H. . .O hydrogen bonds. The dimers are further linked by an intermolecular C—H. . .O hydrogen bond and four C—H . . .&#960:interactions, forming a two-dimensional network parallel to (001). [ABSTRACT FROM AUTHOR]