Acta Crystallographica Section E (Mar 2012)

4-Methyl-2-oxo-2H-chromen-7-yl 4-fluorobenzenesulfonate

  • Madhukar Hemamalini,
  • Hoong-Kun Fun,
  • Habibah A. Wahab,
  • Hasnah Osman,
  • Suman Sinha

DOI
https://doi.org/10.1107/S1600536812004394
Journal volume & issue
Vol. 68, no. 3
pp. o641 – o642

Abstract

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In the asymmetric unit of the title compound, C16H11FO5S, the 2H-chromene ring is essentially planar, with a maximum deviation of 0.040 (2) Å. The dihedral angle between the 2H-chromene ring and the 4-fluorophenyl ring is 2.17 (8)°. One of the sulfonamide O atoms is approximately coplanar with the benzene ring [C—C—S—O torsion angle = 166.00 (14)°], whereas the other O atom lies well below the plane [C—C—S—O = −61.35 (17)°]. In the crystal, molecules are connected by weak C—H...O hydrogen bonds, forming two-dimensional networks parallel to the ac plane.