ABSTRACT
The title compound, C15H10I2O, is a halogenated chalcone formed from two iodine substituted rings, one para-substituted and the other meta-substituted, linked through a prop-2-en-1-one spacer. In the mol-ecule, the mean planes of the 3-iodo-phenyl and the 4-iodo-phenyl groups are twisted by 46.51â (15)°. The calculated electrostatic potential surfaces show the presence of σ-holes on both substituted iodines. In the crystal, the mol-ecules are linked through type II halogen bonds, forming a sheet structure parallel to the bc plane. Between the sheets, weak inter-molecular C-Hâ¯π inter-actions are observed. Hirshfeld surface analysis showed that the most significant contacts in the structure are Câ¯H/Hâ¯C (31.9%), followed by Hâ¯H (21.4%), Iâ¯H/Hâ¯I (18.4%). Iâ¯I (14.5%) and Oâ¯H/Hâ¯O (8.1%).