H. Fun, S. Chantrapromma, P. S. Patil
May 3, 2008
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
In the title compound, C15H10ClNO3, a substituted chalcone, the 2-chlorophenyl and 4-nitrophenyl rings make a dihedral angle of 26.48 (6)°. The nitro group makes a dihedral angle of 11.64 (7)° with the plane of the benzene ring to which it is bound. Weak intramolecular C—H⋯O and C—H⋯Cl interactions involving the enone groups generate S(5) ring motifs, which help to stabilize the planarity of the 3-(2-chlorophenyl)prop-2-en-1-one segment of the molecule. In the crystal structure, adjacent molecules are stacked in a head-to-tail fashion into columns along the a axis by π–π interactions [centroid–centroid distance = 3.6955 (8) Å]. Neighbouring columns are linked by weak C—H⋯O interactions.