Date Published: May 01, 2009
Publisher: International Union of Crystallography
Author(s): Paul D. Ahn, Roger Bishop, Donald C. Craig, Marcia L. Scudder.
The achiral title compound, C6H4Cl2O2, crystallizes with O—H⋯O hydrogen bonding linking molecules into layers. Between layers there are chains of Cl⋯Cl⋯Cl interactions with alternating distances of 3.274 (2) and 3.742 (2) Å. Augmenting this arrangement there are also C—H⋯Cl (2.97 and 3.17 Å) and Cl⋯π (shortest distances 3.40 and 3.54 Å) interactions.
For the structures of related dichloronaphthalenediols, see: Ahn et al. (1995 ▶, 1996 ▶). For the preparation of the title compound, see: Beddoes et al. (1981 ▶).