Benzotriazole Ring System Research Articles

3-(1H-Benzotriazol-1-yl)-1-(4-bromophenyl)propan-1-one

In the mol­ecule of the title compound, C15H12BrN3O, the dihedral angle between the benzotriazole ring system and the benzene ring is 19.0 (1)°. π–π inter­actions stabilize the crystal structure (centroid-to-centroid distances of 3.729 and 3.690 A).

3-(Benzotriazol-2-yl)-1-(biphenyl-4-yl)propan-1-one

In the mol­ecule of the title compound, C21H17N3O, the nearly planar benzotriazole ring system is oriented with respect to the planar rings C (benzoyl) and D (terminal phen­yl) at dihedral angles of 58.52 (1) and 77.16 (1)°, respectively. In the crystal structure, inter­molecular C—H⋯N hydrogen bonds link the mol­ecules into centrosymmetric dimers.

3-(1H-Benzotriazol-1-yl)-1-(4-chlorophenyl)propan-1-one

In the mol­ecule of the title compound, C15H12ClN3O, the dihedral angle between the benzotriazole ring system and the chloro­benzene ring is 63.06 (1)°. π–π Inter­actions stabilize the crystal structure.

1-(4,6-Dimethoxy-1,3,5-triazin-2-yloxy)-1H-benzotriazole

In the title compound, C11H10N6O3, the mean planes of the benzotriazole ring system and the 1,3,5-triazine ring make a dihedral angle of 89.3 (3)°. The crystal packing is stabilized by π–π stacking inter­actions and van der Waals forces.