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In the title compound, C22H14ClN3O2, the indole unit is essentially coplanar, with a maximum deviation of 0.035 Å for the C atom bearing the methyl group. The central pyridine ring is inclined to the indole ring system by 43.7 (1)°. The dihedral angle between the phenyl ring and the indole ring system is 15.7 (2)°, while that between the phenyl ring and the central pyridine ring is 46.3 (1)°. The molecular structure is stabilized by an intramolecular O—H...O hydrogen bonding, forming an S(6) ring motif. In the crystal, molecules are linked via pairs of N—H...N hydrogen bonds, forming inversion dimers with an R22(16) ring motif. The crystal structure also features C—H...π and π–π interactions [centroid–centroid separation = 3.688 (1) Å].