Acta Cryst. (2009). E65, o2185  [ doi:10.1107/S1600536809030773 ]

N-Acetonylsaccharin

M. Ahmad, H. L. Siddiqui, M. Azam, W. A. Siddiqui and M. Parvez

Abstract: In the title compound [systematic name: 2-(2-oxopropyl)-1,2-benzothiazol-3(2H)-one 1,1-dioxide], C₁₀H₉NO₄S, the benzothiazole unit is essentially planar [maximum deviation = 0.0490 (9) Å for the S atom] and the oxopropyl group is inclined at an angle 75.61 (8)° with respect to its mean plane. In the crystal, molecules are held together by weak intermolecular C-HO non-classical hydrogen bonds, resulting in centrosymmetric dimeric units, forming 14-membered ring systems which may be described as R₂²(14) ring motifs. Moreover, molecules lying about inversion centers show - interactions, with centroid-centroid separations between the benzene rings of 3.676 (2) Å.

Online 19 August 2009

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