%0 Journal Article %T (R)-7-Bromo-2,3,4,4a-tetrahydro-1H-xanthen-1-one %A Ai-Bao Xia %A Jie Tang %A Jun-Rong Jiang %A Yi-Feng Wang %J Acta Crystallographica Section E %D 2009 %I International Union of Crystallography %R 10.1107/s1600536809030244 %X The title compound, C13H11BrO2, contains a tricyclic ring system with one chiral center which exhibits an R configuration. The crystal structure is devoid of any classical hydrogen bonding. %U http://scripts.iucr.org/cgi-bin/paper?S1600536809030244