Received 30 October 2012
The title molecule, C19H12S2O2, lies on a twofold rotation axis. The thiochromonone unit is essentially planar, with a maximum deviation of 0.0491 (14) Å. The dihedral angle between the thiochromenone ring systems is 64.48 (4)°. In the crystal, there are weak - stacking interactions, with a centroid-centroid distance of 3.7147 (9) Å.
Data collection: SMART (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009) and Jmol (Hanson, 2010); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: LH5551 ).
The authors thank the University Grants Commission, New Delhi, India, for financial support in the form of a Major Research Project. In addition, they express their thanks to Dr Jai Anand Garg for his valuable support in the preparation of this structure report.
Ambartsumyan, A. A., Vasiléva, T. T., Chakhovskaya, O. V., Mysova, N. E., Tuskaev, V. A., Khrustalev, V. N. & Kochetkov, K. A. (2012). Russ. J. Org. Chem. 48, 451-455.
Bruker (2007). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Hanson, R. M. (2010). J. Appl. Cryst. 43, 1250-1260.
Li, Y., Xiao, T., Liu, D. & Yu, G. (2010). Acta Cryst. E66, o694.
Nyburg, S. C., Prasad, L., Leong, T. S. & Still, I. W. J. (1986). Acta Cryst. C42, 816-821.
Panja, S. K., Maiti, S., Drew, M. G. B. & Bandyopadhyay, Ch. (2009). Tetrahedron, 65, 1276-1280.
Santhosh, K. C. & Balasubramanian, K. K. (1991). Tetrahedron Lett. 32, 7727-7730.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.