Redetermination of (E)-3-(anthracen-9-yl)-1-(2-hy­droxy­phen­yl)prop-2-en-1-one

The redetermined structure of title chalcone derivative, C(23)H(16)O(2), corrects errors in the title, scheme and synthesis in the previous report of the same structure [Jasinski et al. (2011 ▶). Acta Cryst. E67, o795]. There are two independent mol­ecules in the asymmetric unit with slight differences in bond lengths and angles. The dihedral angle between the benzene ring and the anthracene ring system is 73.30 (4)° in one mol­ecule and 73.18 (4)° in the other. Both mol­ecules feature an intra­molecular O—H⋯O hydrogen bond, which generates an S(6) ring. In the crystal, mol­ecules are arranged into sheets lying parallel to the ac plane and further stacked along the b axis by π–π inter­actions with centroid–centroid distances in the range 3.6421 (6)–3.7607 (6) Å. The crystal structure is further stabilized by C—H⋯π inter­actions. There are also C⋯O [3.2159 (15) Å] short contacts.