5-[(E)-Meth­oxy(phen­yl)methyl­idene]-1,3,4-triphenyl-4,5-dihydro-1H-1,2,4-triazole

In the title compound, C₂₈H₂₃N₃O, the 1,2,4-triazole ring deviates slightly from planarity adopting a ^N3T_C2 conformation which is distorted towards an E_C2 conformation. The plane around the ethyl­ene unit makes a dihedral angle of 17.32 (11)° with the mean plane [r.m.s. deviation = 0.036 (1) Å] of the 1,2,4-triazole fragment. The dihedral angles between the four phenyl rings and the 1,2,4-triazole ring are 31.01 (10), 49.01 (8), 78.55 (6) and 41.51 (9)°. In the crystal, mol­ecules are linked along [100] by weak C—H...O hydrogen bonds.