title: Crystal structure of (E)-1-(1-hy-droxy-naphthalen-2-yl)-3-(2,3,4-tri-meth-oxy-phen-yl)prop-2-en-1-one.
abstract: The title compound, C22H20O5, is composed of a hy-droxy-naphthyl ring and a tri-meth-oxy-phenyl ring [the planes of which are inclined to one another by 21.61 (10)°] bridged by an unsaturated prop-2-en-1-one group. The mean plane of the prop-2-en-1-one group [-C(=O)-C=C-] is inclined to that of the naphthyl system and benzene rings by 3.77 (14) and 18.01 (16)°, respectively. There is an intra-molecular O-H⋯O hydrogen bond present forming an S(6) ring motif. In the crystal, inversion-related mol-ecules are linked by a slipped-parallel π-π inter-action [inter-centroid distance = 3.8942 (13) Å, inter-planar distance = 3.478 (9) Å and slippage = 1.751 Å], and stack along the [101] direction. There are no other significant inter-molecular inter-actions present.
authors.affiliation: PG and Research Department of Physics, Queen Mary's College, Chennai 600 004, India.
authors.forename: J
authors.initials: J
authors.lastname: Srividya
authors.affiliation: Department of Chemistry, Madras Christian College, Chennai-59, India.
authors.forename: D
authors.initials: D
authors.lastname: Reuben Jonathan
authors.affiliation: PG and Research Department of Physics, Queen Mary's College, Chennai 600 004, India.
authors.forename: B K
authors.initials: BK
authors.lastname: Revathi
authors.affiliation: PG and Research Department of Physics, Presidency College, University of Madras, Chennai 600 005, India.
authors.forename: G
authors.initials: G
authors.lastname: Anbalagan
keywords: O—H⋯O hydrogen bond; S(6) ring motif; chalcones; crystal structure; hy­droxy­naphthalene; π–π slipped parallel inter­action