%0 Journal Article %T 4-[(Hydroxy)(4-methylphenyl)methylidene]isochroman-1,3-dione %A Akoun Abou %A Abdoulaye Djandé %A Adama Saba %A Thierry Chiavassa %J Acta Crystallographica Section E %D 2012 %I International Union of Crystallography %R 10.1107/s1600536811050975 %X In the title compound, C17H12O4, the six-membered heterocyclic ring adopts a distorted screw-boat conformation. The molecular structure exhibits an S(6) ring motif, owing to an intramolecular O¡ªH...O hydrogen bond. In the crystal, weak C¡ªH...O contacts generate an infinite chain along the c axis. There are also ¦Ð¨C¦Ð stacking interactions between neighbouring isochromanedione benzene rings, with a centroid¨Ccentroid distance of 3.755 (1) , and C¡ªO...¦Ð interactions with an O...centroid distance of 3.964 (2) . %U http://scripts.iucr.org/cgi-bin/paper?S1600536811050975