title: 1-Methyl-1H-2,1-benzothia-zin-4(3H)-one 2,2-dioxide.
abstract: In the crystal structure of the title compound, C(9)H(9)NO(3)S, there is distorted tetra-hedral geometry around the S atom. The sulfonyl group is almost normal to the benzene ring, while the carbonyl O atom and methyl C atom are on opposite sides of this ring. The heterocyclic ring adopts a half-boat conformation with the S atom out of the plane. The mol-ecules are dimerized by hydrogen bonding involving the benzene ring and the sulfonyl group. These dimers are linked to each other in the same way. There is an intra-molecular hydrogen bond between a methyl C-H group and a sulfonyl O atom, and a π-π inter-action between the aromatic rings of two dimers at a centroid-to-centroid distance of 3.6373 (13) Å.
authors.forename: M Nawaz
authors.initials: MN
authors.lastname: Tahir
authors.forename: Muhammad
authors.initials: M
authors.lastname: Shafiq
authors.forename: Islam Ullah
authors.initials: IU
authors.lastname: Khan
authors.forename: Waseeq Ahmad
authors.initials: WA
authors.lastname: Siddiqui
authors.forename: Muhammad Nadeem
authors.initials: MN
authors.lastname: Arshad