%0 Journal Article %T 4-Hydroxy-3-[(4-hydroxy-2-oxo-2H-3-chromenyl)(3-thienyl)methyl]-2H-chromen-2-one %A Mohammad Asad %A Chuan-Wei Oo %A Hasnah Osman %A Mohd Mustaqim Rosli %J Acta Crystallographica Section E %D 2011 %I International Union of Crystallography %R 10.1107/s1600536811011676 %X The whole molecule of the title compound, C23H14O6S, is disordered over two sets of sites with refined occupancies of 0.8733 (12):0.1267 (12). The dihedral angle between the mean planes through the chromene ring systems is 56.31 (5) and 55.2 (3)¡ã for the major and minor components, respectively. In both components, a pair of intramolecular O¡ªH...O interactions generate rings of S(8) graph-set motif. In the crystal, the molecules are linked by intermolecular C¡ªH...O interactions, forming chains along the b axis. The structure is further stabilized by ¦Ð¨C¦Ð interactions with centroid¨Ccentroid distances of 3.594 (2) and 3.608 (5) . %U http://scripts.iucr.org/cgi-bin/paper?S1600536811011676