(IUCr) Crystallography Journals Online

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Acta Cryst. (2007). E63, o135-o137 [ doi:10.1107/S1600536806051117 ]

4-Methyl-7-phenylsulfonamido-2H-1-benzopyran-2-one

S.-P. Yang, L.-J. Han and D.-Q. Wang

Abstract: In the title compound, C₁₂H₁₁NO₃, the molecules have two intramolecular C-HO hydrogen bonds that define an S(6)S(5) pattern. The molecules are linked by N-HO hydrogen bonds into a centrosymmetric dimer. These dimers are linked by further C-HO hydrogen bonds, so forming a [100] ribbon of R₂²(8)R₄⁴(18)[R₄⁴(20)] rings, a [1 $\overline{1}$ $\overline{1}$ ] chain of alternating R₂²(8) and R₂²(22) rings, and an [010] complex chain of R₄²(18) rings. The combination of the [100] ribbon, the [1 $\overline{1}$ $\overline{1}$ ] chain and the [010] chain results in the formation of a three-dimensional network structure.

Online 6 December 2006