Koh Dongsoo
Department of Applied Chemistry, Dongduk Women's University, Seoul 136-714, Republic of Korea.
Acta Crystallogr Sect E Struct Rep Online. 2013 Mar 16;69(Pt 4):o542. doi: 10.1107/S1600536813006843. Print 2013 Apr 1.
In the title mol-ecule, C22H20O5, the C=C bond of the central enone group adopts an E conformation. The dihedral angle formed by the benzene ring and the naphthalene ring system is 12.6 (4)°. The hy-droxy group attached to the naphthalene ring is involved in an intra-molecular O-H⋯O hydrogen bond. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into chains along [010]. In addition, π-π stacking inter-actions are present, with centroid-centroid distances of 3.6648 (15) and 3.8661 (15) Å between the benzene and two naphthalene rings.
在标题分子C₂₂H₂₀O₅中，中心烯酮基团的C=C键呈E构象。苯环与萘环系统形成的二面角为12.6 (4)°。连接在萘环上的羟基参与了分子内的O-H⋯O氢键形成。在晶体中，弱C-H⋯O氢键将分子沿[010]方向连接成链。此外，存在π-π堆积相互作用，苯环与两个萘环之间的质心-质心距离分别为3.6648 (15) Å和3.8661 (15) Å。
