title: Crystal structure of N-{[3-bromo-1-(phenyl-sulfon-yl)-1H-indol-2-yl]meth-yl}benzene-sulfonamide.
abstract: In the title compound, C21H17BrN2O4S2, the indole ring system subtends dihedral angles of 85.96 (13) and 9.62 (16)° with the planes of the N- and C-bonded benzene rings, respectively. The dihedral angles between the benzene rings is 88.05 (17)°. The mol-ecular conformation is stabilized by intra-molecular N-H⋯O and C-H⋯O hydrogen bonds and an aromatic π-π stacking [centroid-to-centroid distance = 3.503 (2) Å] inter-action. In the crystal, short Br⋯O [2.9888 (18) Å] contacts link the mol-ecules into [010] chains. The chains are cross-linked by weak C-H⋯π inter-actions, forming a three-dimensional network.
authors.affiliation: Research and Development Centre, Bharathiar University, Coimbatore 641 046, India ; Department of Chemistry, Pallavan College of Engineering, Kanchipuram 631 502, India.
authors.forename: M
authors.initials: M
authors.lastname: Umadevi
authors.affiliation: Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: P
authors.initials: P
authors.lastname: Raju
authors.affiliation: Department of Sciences, Chemistry and Materials Research Lab, Amrita Vishwa Vidyapeetham University, Ettimadai, Coimbatore 641 112, India.
authors.forename: R
authors.initials: R
authors.lastname: Yamuna
authors.affiliation: Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: A K
authors.initials: AK
authors.lastname: Mohanakrishnan
authors.affiliation: Department of Physics, CPCL Polytechnic College, Chennai 600 068, India.
authors.forename: G
authors.initials: G
authors.lastname: Chakkaravarthi
keywords: C—H⋯π inter­actions; benzene­sulfonamide; bio­logical activity; crystal structure; derivatives; hydrogen bonding; phenyl­sulfon­yl