Date Published: March 01, 2012
Publisher: International Union of Crystallography
Author(s): Zhe Li, Yanan Wang, Kesong Peng, Lingzi Chen, Shenghui Chu.
The crystal structure of the title compound, C17H15BrO3, a chalcone derivative, exhibits two crystallographically independent molecules per asymmetric unit showing an E conformation about the ethylene double bond. In each molecule, the two phenyl rings are almost coplanar: the mean planes make dihedral angles of 9.3 (2) and 19.4 (2)°. In the crystal, molecules are linked through weak intermolecular C—H⋯O hydrogen bonds.
For related structures, see: Wu et al. (2009 ▶, 2010 ▶, 2011a ▶,b ▶); Huang et al. (2010 ▶); Peng et al. (2010 ▶). For background to and applications of chalcones, see: Nielsen et al. (2005 ▶); Wu et al. (2010 ▶, 2011a ▶,b ▶).