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. 2014 Jan 8;70(Pt 2):o114.
doi: 10.1107/S1600536814000026. eCollection 2014 Feb 1.

16-Oxa-penta-cyclo-[6.6.5.0(1,18).0(2,7).0(9,14)]nona-deca-2,4,6,9,11,13,18-heptaen-15-one

Affiliations

16-Oxa-penta-cyclo-[6.6.5.0(1,18).0(2,7).0(9,14)]nona-deca-2,4,6,9,11,13,18-heptaen-15-one

Eason M Mathew et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the title compound, C18H12O2, the benzene rings are inclined to one another by 66.79 (7)°. The five-membered ring is almost planar with a maximum deviation of 0.014 (1) Å. In the crystal, the mol-ecules are linked by pairs of weak C-H⋯O interactions into centrosymmetric dimers. These dimers are linked by C-H⋯π interactions, forming a three-dimensional structure.

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Figures

Fig. 1.
Fig. 1.
ORTEP view of the title molecule drawn with 50% probability displacement ellipsoids and showing the atom labelling scheme.
Fig. 2.
Fig. 2.
C—H···π interactions in the title compound.
Fig. 3.
Fig. 3.
Packing diagram of the compound along a axis.

References

    1. Brandenburg, K. (2010). DIAMOND Crystal Impact GbR, Bonn, Germany.
    1. Bruker (2007). APEX2, SAINT and SADABS Bruker AXS Inc., Madison, Wisconsin, USA.
    1. Ciganek, E. (1980). J. Org. Chem. 45, 1497–1505.
    1. Cox, J. R., Simpson, J. H. & Swager, T. M. (2013). J. Am. Chem. Soc. 135, 640–643. - PubMed
    1. Cremer, D. & Pople, J. A. (1975). J. Am. Chem. Soc. 97, 1354–1358.