Affiliations 

  • 1 Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia
Acta Crystallogr E Crystallogr Commun, 2019 Jun 01;75(Pt 6):774-779.
PMID: 31391964 DOI: 10.1107/S2056989019006480

Abstract

In the title bis-chalcone, C17H12Br2O, the olefinic double bonds are almost coplanar with their attached 4-bromo-phenyl rings [torsion angles = -10.2 (4) and -6.2 (4)°], while the carbonyl double bond is in an s-trans conformation with with respect to one of the C=C bonds and an s-cis conformation with respect to the other [C=C-C=O = 160.7 (3) and -15.2 (4)°, respectively]. The dihedral angle between the 4-bromo-phenyl rings is 51.56 (2)°. In the crystal, mol-ecules are linked into a zigzag chain propagating along [001] by weak C-H⋯π inter-actions. The conformations of related bis-chalcones are surveyed and a Hirshfeld surface analysis is used to investigate and qu-antify the inter-molecular contacts.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.