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Author(s): Abdullah M. Asiri | Hassan M. Faidallah | Khalid A. Alamry | Seik Weng Ng | Edward R. T. Tiekink

Journal: Acta Crystallographica Section E
ISSN 1600-5368

Volume: 68;
Issue: 8;
Start page: o2314;
Date: 2012;
Original page

In the title compound, C20H18O2, the fused-ring systems are essentially planar (r.m.s. deviations of the nine fitted atoms = 0.009 and 0.027 Å) and exhibit an orthogonal relationship [dihedral angle = 79.83 (5)°]. To a first approximation, the ketone-O atoms are directed to opposite sides of the molecule. A three-dimensional architecture arises in the crystal packing owing to C—H...O, C—H...π and π–π interactions [between centrosymmetrically related benzene rings with centroid–centroid distance = 3.7647 (10) Å].
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