Received 16 September 2013
In the title compound, C19H14FNS2, the seven-membered thiazepine ring adopts a slightly distorted twist boat conformation. The dihedral angle between the benzene rings is 53.6 (1)°. The mean plane of the thiazepine ring is twisted by 34.3 (7)° and 36.6 (7)° from the benezene rings. A C-HF interaction generates stacking of molecules along the ab plane.
For heterocycles containing the 1,4-thiazepine ring used as pharmaceutical agents as well as for biologically active compounds, see: Shi et al. (2012). For the pharmacological activity of benzothiazepine and its derivatives, see: Sanjeeva et al. (2008). For standard bond lengths, see: Allen et al. (1987).
Data collection: APEX2 (Bruker, 2013); cell refinement: SAINT (Bruker, 2013); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: JJ2176 ).
The authors thank the IOE and the University of Mysore for providing the single crystal X-ray diffractometer facility.
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