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. 2011 Dec 1;67(Pt 12):o3163.
doi: 10.1107/S1600536811043832. Epub 2011 Nov 5.

2-(4-Chloro-phen-yl)chromen-4-one

Shailja Singh, Manavendra K Singh, Alka Agarwal, Satish K Awasthi

2-(4-Chloro-phen-yl)chromen-4-one

Shailja Singh et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title compound, C(15)H(9)ClO(2), is a synthetic flavonoid obtained by the cyclization of 3-(4-chloro-phen-yl)-1-(2-hy-droxy-phen-yl)prop-2-en-1-one. The 4-chloro-phenyl ring is twisted at an angle of 11.54° with respect to the chromen-4-one skeleton. In the crystal, pairs of mol-ecules are inter-connected by weak Cl⋯Cl inter-actions [3.3089 (10) Å] forming dimmers which are further peripherally connected through inter-molecular C-H⋯O hydrogen bonds.

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Figures

Fig. 1.
Fig. 1.
ORTEP diagram of the molecule with thermal ellipsoids drawn at 50% probability level Color code: White: C; red: O; green: Cl; white: H.
Fig. 2.
Fig. 2.
Packing diagram of molecule showing centroid–centroid distance between two parallel lying cromone ring and intermolecular hydrogen bonding.
See this image and copyright information in PMC

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