Received 26 July 2013
The penta-2,4-dien-1-one fragment of the title compound, C23H17ClOS, is twisted by 20.0 (3)°, as measured by the dihedral angle between the planes of the carbonyl group and its attached C atom and the distant C=C double bond and its attached C atom. The 4-chlorophenyl group forms a dihedral angle of 4.0 (3)° with the adjacent carbonyl group. Conjugation between the phenyl ring and the C=C double bond is absent; the dihedral angle between the phenyl ring and the C-C=C fragment is 34.3 (2)°. In the crystal, molecules are linked via C-HO hydrogen bonds, forming chains parallel to the b-axis direction.
For the biological activity of chalcones, and their arylthio-containing derivatives, see: Chate et al. (2012); Nielsen et al. (2005); Wu et al. (2011), Karaman et al. (2012). For the synthesis and crystal structures of precursor 1,5-diarylpent-2-en-4-yn-1-ones, see: Golovanov et al. (2013). For standard bond lengths, see: Allen et al. (1987).
Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: LD2112 ).
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