In the title compound, C(17)H(16)I(2)N(2)O(2), the two aromatic rings are almost coplanar [dihedral angle 2.57 (15)°]. The morpholine ring adopts a chair conformation. The mol-ecular structure is stabilized by an O-H⋯N hydrogen bond and the crystal packing exhibits weak inter-molecular C-H⋯O and π-π [centroid-to-centroid distances 3.663 (3)-4.073 (3) Å] inter-actions.

In the title mol-ecule, C19H14N2O, the benzimidazole unit is close to being planar [maximum deviation = 0.0253 (11) Å] and forms dihedral angles of 68.98 (6) and 20.38 (7)° with the adjacent phenyl and benzene rings; the dihedral angle between the latter two planes is 64.30 (7)°. An intra-molecular O-H⋯N hydrogen bond generates an S(6) ring motif. In the crystal, mol-ecules are linked by C-H⋯N ...

In the title compound, C(21)H(16)N(2)O, the dihedral angle between the pendant aromatic rings is 74.2-(1)°.. The conformation is stabilized by an intramolecular O-H⋯N hydrogen bond.