Download citation
Download citation

link to html
The asymmetric unit of the title compound, C18H22N2O3S, contains two mol­ecules, exhibiting similar conformations [C—S—N—C torsion angles of −82.2 (2) and −70.4 (2)°, and dihedral angles between the mean planes of the aromatic rings of 56.6 (6) and 51.6 (6)° in mol­ecules I and II, respectively]. However, the two independent mol­ecules show distinctly different hydrogen-bonding patterns. In the crystal, molecules I form inversion dimers via pairs of N—H...O hydrogen bonds, whereas for molecules II the N—H...O hydrogen bond is intramolecular. The hydrogen-bonded dimers of I further propagate along the b-axis direction through π–π inter­actions [the distance between ring centroids is 3.8424 (8) Å].

Download citation
Download citation

link to html
In the title compound, C12H10BrClN2O2S, the sulfonamide group adopts a staggered conformation about the N—S bond [the C—S—N—H torsion angle is 97 (3)°] with the N-atom lone pair bis­ecting the O=S=O angle. For the C(Ar)—S bond, the ortho-substituted C atom bis­ects one of O=S–N angles [the C—C—S—N torsion angle is −57.7 (3)°]. The mean planes of the aromatic rings form a dihedral angle of 75.1 (1)°. In the crystal, mol­ecules form inversion dimers through pairs of N—H...NH2 hydrogen bonds. The mol­ecules are further consolidated into layers along the bc plane by weaker N—H...O inter­actions.
Follow Acta Cryst. E
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds