Sumby, C.Hardie, M.2008-05-232008-05-232007Acta Crystallographica Section E: Structure Reports Online, 2007; 63(4):O1537-O15391600-53681600-5368http://hdl.handle.net/2440/44808The definitive version is available at www.blackwell-synergy.com Distributed on behalf of the International Union of Crystallography. © International Union of CrystallographyThe title compound, C21H18O6·2C3H6O, crystallizes as a clathrate complex that includes two acetone guest molecules in a capsular assembly formed by two 2,3,7,8,12,13-hexahydroxy-10,15-dihydro-5H-tribenzo[a,d,g]cyclononene molecules. Intermolecular hydrogen-bonding and host-guest interactions define this dimeric clathrate complex, which is also part of a two-dimensional extensively hydrogen-bonded sheet involving the clathrate complex and acetone solvent molecules in the extended crystal packing.enJournal article002007050210.1107/S16005368070089870002454363001172-s2.0-3414722036349027Sumby, C. [0000-0002-9713-9599]