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. 2008 Jul 5;64(Pt 8):o1413.
doi: 10.1107/S1600536808020084.

(1E,4E)-1,5-Bis(4-methyl-phen-yl)penta-1,4-dien-3-one

Muhammad Nadeem Arshad, Muhammad Nawaz Tahir, Muhammad Nadeem Asghar, Islam Ullah Khan, Muhammad Ashfaq

(1E,4E)-1,5-Bis(4-methyl-phen-yl)penta-1,4-dien-3-one

Muhammad Nadeem Arshad et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title compound, C(19)H(18)O, crystallizes in a non-centrosymmetric space group although the mol-ecule has no chiral centre. The dihedral angle between the aromatic rings is 20.43 (13)°. The structure is stabilized by two intra-molecular hydrogen bonds, and by four π-π and three C-H⋯π inter-actions between the aromatic rings. The perpendicular distances between the centroids of the rings involved in the π-π inter-actions have values of 1.996, 2.061, 2.181 and 2.189 Å.

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Figures

Fig. 1.
Fig. 1.
ORTEP drawing of the title compound, with the atom numbering scheme. The thermal ellipsoids are drawn at the 50% probability level. H-atoms are shown by small circles of arbitrary radii. The intramolecular H-bonding is shown by dotted lines.
Fig. 2.
Fig. 2.
The packing figure (PLATON: Spek, 2003) which shows the stacking of molecules in a unit cell.
See this image and copyright information in PMC

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