Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 8 (August 2012)

organic compounds

 

2-[1-(1-Oxoindan-2-yl)ethyl]indan-1-one

A. M. Asiri, H. M. Faidallah, K. A. Alamry, S. W. Ng and E. R. T. Tiekink

Abstract: 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-HO, C-H and - interactions [between centrosymmetrically related benzene rings with centroid-centroid distance = 3.7647 (10) Å].

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