title: 1,4-Bis(4-chloro-phen-yl)-2-hydroxy-butane-1,4-dione.
abstract: In the title compound, C(16)H(12)Cl(2)O(3), the benzene rings form a dihedral angle of 2.0 (3)°. Within the central O=C-CH(2)C(H)OH-C=O unit, the carbonyl groups are coplanar and lie to opposite sides [O-C⋯C-O = -170.1 (6)°]. In the crystal, inter-molecular O-H⋯O hydrogen bonds formed between the hydr-oxy groups lead to a supra-molecular chain along the c axis. In addition, the crystal packing features some very weak C-H⋯π inter-actions.
authors.affiliation: College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China.
authors.forename: Yongjun
authors.initials: Y
authors.lastname: Liu
authors.forename: Kuiwei
authors.initials: K
authors.lastname: Yang
authors.forename: Weiling
authors.initials: W
authors.lastname: Song
authors.forename: Yan
authors.initials: Y
authors.lastname: Qi