Acta Cryst. (2009). E65, o2998  [ doi:10.1107/S1600536809046029 ]

4-Hydroxy-N-(2,4,6-tribromophenyl)-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide

M. N. Arshad, M. Zia-ur-Rehman, I. U. Khan and M. Shafiq

Abstract: In the title compound, C₁₅H₁₉Br₃N₂O₄S, the thiazine ring adopts a distorted half-chair conformation. The enolic H atom is involved in an intramolecular O-HO hydrogen bond, forming a six-membered ring. In the crystal, the molecules are linked into a three-dimensional network through intermolecular N-HO, N-HBr and O-HBr hydrogen bonds.

Online 4 November 2009

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