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The asymmetric unit of the title compound, C21H18ClN3O, contains two crystallographically independent molecules which differ slightly in the orientations of chlorobenzyloxy units. In one of the molecules, the phenyl and chlorophenyl rings are oriented at dihedral angles of 38.09 (6) and 42.15 (6)°, respectively, with respect to the benzotriazole ring [43.23 (6) and 29.80 (6)° in the other molecule]. The dihedral angle between the phenyl and chlorophenyl rings is 77.63 (6)° in one of the molecules and 72.97 (6)° in the other. The crystal structure is stabilized by weak C—H⋯π interactions.