Received 10 June 2013
The asymmetric unit of the title compound, C16H12ClFO2S, contains two independent molecules in which the benzofuran ring systems are essentially planar, with r.m.s. deviations of 0.007 (1) and 0.013 (1) Å. In the crystal, molecules are linked by weak C-HO hydrogen bonds into chains extending along the b axis. These chains are further packed into stacks along the c -axis by SO contacts [3.1898 (11) and 3.1361 (11) Å] involving the sulfinyl groups. In both 3-fluorophenyl rings, the F atom is disordered over two positions, with site-occupancy factors of 0.921 (2) and 0.079 (2).
For background information and the crystal structures of related compounds, see: Choi et al. (2010a,b). For details of sulfinyl-sulfinyl interactions, see: Choi et al. (2008). For a review of carbonyl-carbonyl interactions, see: Allen et al. (1998).
Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 1998); software used to prepare material for publication: SHELXL97).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: FJ2636 ).
This work was supported by the Blue-Bio Industry Regional Innovation Center (RIC08-06-07) at Dongeui University as an RIC program under the Ministry of Knowledge Economy and Busan city.
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