Acta Cryst. (2010). E66, o2707  [ doi:10.1107/S1600536810038274 ]

3-(6-Fluoro-4-oxo-4H-chromen-3-yl)-3,4-dihydro-2H-1,2,4-benzothiadiazine-1,1-dione

M. al-Rashida, S. A. Nagra, I. U. Khan, G. Kostakis and G. Abbas

Abstract: In the title compound, C₁₆H₁₁FN₂O₄S, the mean planes of the bicyclic chromone system and of the benzene ring of the benzothiadiazine derivative make a dihedral angle of 54.28 (5)°. An intramolecular N-HO hydrogen bond occurs. In the crystal, molecules are linked into layers by N-HO and C-HO hydrogen bonds, generating an infinite two-dimensional network.

Online 2 October 2010

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