title: 2-(2-{2-[2-(Dibromo-meth-yl)phen-oxy]eth-oxy}benz-yloxy)benzaldehyde.
abstract: The mol-ecule of the title compound, C(23)H(20)Br(2)O(4), adopts a Z conformation as a result of inter-molecular C-H⋯Br bonding. One benzene ring, with the structure R-CHBr(2), makes a dihedral angle of 63.0 (2)° with the other benzene ring attached to the aldehyde group. Inter-molecular π-π stacking inter-actions [centroid-centroid distance = 3.698 (4) Å] and a weak C-H⋯Br contact is present in the crystal structure.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Juan
authors.initials: J
authors.lastname: Xia
authors.forename: Xiang
authors.initials: X
authors.lastname: Liu
authors.forename: An-Qi
authors.initials: AQ
authors.lastname: Wang
authors.forename: Zhong-Xing
authors.initials: ZX
authors.lastname: Su