Crystal structure of 7-{[bis­(pyridin-2-ylmeth­yl)amino]­meth­yl}-5-chloro­quinolin-8-ol

In the title compound, C(22)H(19)ClN(4)O, the quinolinol moiety is almost planar [r.m.s. deviation = 0.012 Å]. There is an intra­molecular O—H⋯N hydrogen bond involving the hy­droxy group and a pyridine N atom forming an S(9) ring motif. The dihedral angles between the planes of the quinolinol moiety and the pyridine rings are 44.15 (9) and 36.85 (9)°. In the crystal, mol­ecules are linked via C—H⋯O hydrogen bonds forming inversion dimers with an R (4) (4)(10) ring motif. The dimers are linked by C—H⋯N hydrogen bonds, forming ribbons along [01-1]. The ribbons are linked by C—H⋯π and π–π inter­actions [inter-centroid distance = 3.7109 (11) Å], forming layers parallel to (01-1).