Crystal structure and Hirshfeld surface analysis of a chalcone derivative: ()-3-(4-fluoro-phen-yl)-1-(4-nitro-phen-yl)prop-2-en-1-one.

The mol-ecular structure of the title chalcone derivative, CHFNO, is nearly planar and the mol-ecule adopts a configuration with respect to the C=C double bond. The nitro group is nearly coplanar with the attached benzene ring, which is nearly parallel to the second benzene ring. In the crystal, mol-ecules are connected by pairs of weak inter-molecular C-H⋯O hydrogen bonds into inversion dimers. The dimers are further linked by another C-H⋯O hydrogen bond and a C-H⋯F hydrogen bond into sheets parallel to (104). π-π inter-actions occur between the sheets, with a centroid-centroid distance of 3.8860 (11) Å. Hirshfeld surface analysis was used to investigate and qu-antify the inter-molecular inter-actions.