2-[4-(Trifluoro-meth-oxy)phen-yl]-1H-benzimidazole.

In the title compound, C(14)H(9)F(3)N(2)O, the best planes of the benzimidazole group and benzene ring form a dihedral angle of 26.68†(3)°. In the crystal, N-H⋯N hydrogen bonds link the mol-ecules into infinite chains parallel to the c axis. Stacking inter-actions between the benzimidazole groups [centroid-centroid distance = 3.594†(5)†à ] assemble the mol-ecules into layers parallel to (100). The trifluoro-methyl group is disordered over three sets of sites with site-occupancy factors of 0.787†(4), 0.107†(7) and 0.106†(7).