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. 2008 Jul 31;64(Pt 8):o1615-6.
doi: 10.1107/S1600536808023386.

(E)-1,2-Bis(4-methyl-phen-yl)ethane-1,2-dione

Hoong-Kun Fun  1 , Reza Kia
Affiliations

(E)-1,2-Bis(4-methyl-phen-yl)ethane-1,2-dione

Hoong-Kun Fun et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the mol-ecule of the title compound, C(16)H(14)O(2), a substituted benzil, the dicarbonyl unit has an s-trans conformation. This conformation is substanti-ated by the O-C-C-O torsion angle of 108.16 (15)°. The dihedral angle between the two aromatic rings is 72.00 (6)°. In the crystal structure, neighbouring mol-ecules are linked together by weak inter-molecular C-H⋯O hydrogen bonds and weak inter-molecular C-H⋯π inter-actions. In addition, the crystal structure is further stabilized by inter-molecular π-π inter-actions with centroid-centroid distances in the range 3.6000 (8)-3.8341 (8) Å.

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Figures

Fig. 1.
Fig. 1.
The molecular structure of (I) with atom labels and 50% probability ellipsoids for non-H atoms.
Fig. 2.
Fig. 2.
The crystal packing, showing parallel aligning of the benzene rings along the a-axis, and stacking of the molecules down the b-axis. Intermolecular interactions are shown as dashed lines.
See this image and copyright information in PMC

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